Mercury 50 User manual

WBl, Brunswick Corporation

IMPORTANT INFORMATION
Because ol your valued investment we
here at Mercury Marine also valueyouas a
consumer c3f the finest outboard products
sold in the world. It is for this reason we
suggest
YOLI break - in your new outboard
motor in thr*following fashion
This break-~nassuresthat all moving parts
" wear - in " evenly toensure alonger engine
hfeand optimum performance
Operate your new outboard motor at var
-
ied throttle settings - riot to exceed 1/2
throttle (2500 - 3500RPM) during the first
hour or the first five gallons of break
- in
fuel. Refer
lo " Fuel Mixture and Gasoline/
Oil Recom~nendations"
- " Break - In Fuel
Mixture.
"
During the second hour operation, or the
second 5 gallons of break
- in fuel, operate
the outboardat varied throttlesettingsnot
to exceed 4500 RPM.
DO NOT OPERATE YOUR NEW OUT -
BOARD MOTOR AT FULL THROTTLE
UNTIL THE SECOND HOUR
OF BREAK -
IN IS COMPLETED. This includes full
throttle acctleration pull~ngwaterskiers,
or w~deoper throttle runnlng
After thefirst twohours of running,approx -
imately 1Og~llonsof fuel,fullthrottleoper -
ation may br attained, but not sustained,
for the rerralning brzak-ln fuel (approxl-
rnately 5gallms)
For the next five hodrs of operation, full
throttle opsritronmay, agaln, be attained.
but ~tisstronjlynot rtAcommendedfor sus
-
tained use fNot mole than 5 minutes of
continuous wdeope?throttle
)
ACAUTION
SEVERE DAMAGE to your engine can
resultby not complying withthepreceding
break
- in procedures.

EAD THIS MANUAL TH
If you don't understand any portion, contact your dealer for a dernon-
stration of actual starting and operatingprocedures.
NOTICE
Throughout this publication, a~ndon your
outboard,
DANGER, WARNINGS and
CAUTIONS,
accompan~edby the interna -
tional HAZARD Symbol A, may be used
toalert the installer/user tospecialinstruc
-
tions concerning a particular service or
operation that may be hazardous if per
-
formed incorrectly or carelessly. OB -
SERVE THEM CAREFULLY.
These " Safaty Alerts " alone cannot elimi -
nate the hazards that they signal. Strict
compliance to these special instructions
when performing the servlce, plus
" com -
mon sense operatton,are major accident
prevention measures
ADANGER
DANGER - Immediate hazards which
WILL result in severe personal injury or
death.
AWARNING
WARNING - Hazards or unsafe practices
which COULD result in severe personal
injury or death.
ACAUTION
CAUTION - Hazards or unsafe practices
whichcouldresultinminqrpersonalinjury
of product or property damage.
IMPORTANT
- Indicates information or
instructions that are necessary for proper
operation andlormaintenance.
AWARNING
Theoperator (driver) isresponsible for the
correct and safe operationof the boat, the
equipment aboard and the safety of all
occupants aboard. We strongly recom
-
mendthat the operator readthisOperation
and Maintenance Manual and thoroughly
understandtheoperationalinstructionsfor
the outboard and all related accessories
before the boat is used.
AWARNING
The following advantages and disadvan -
tages of a LANYARD STCJP SWITCH
should be considered before electing to
use, or not to use, such a switch.
ADVANTAGES: The purpose of a LAN
-
YARDSTOPSWITCHistostoptheengine
when the operator leaves his control sta
-
tion, either accidentally by falling into the
boat, or by falling or being ejected over
-
board.Thisismost likelyincertaintypes of
boats such as low sided bass boats, high
performance boats and light sensitive
handling, fishing boats operated by hand-
tiller. It is aho likely as a result of poor
operating prbctices such as sitting on the
back of the seat at planing speeds, stand
-
ing at planing speeds, operating at high
speeds in shallow or obstacle infested
waters,drinking anddriving,ordaringhigh
speed boat maneuvers.

DISADVANTAGES: Inadvertent activation
oi the switch is also a possibility. This
could cause any or all of the following
potentially hazardoussituations:
a Loss of balance and falling forward of
unstable boat passengers
- a particular
concern inbow rider type boats.
a Lossof poweranddirectionalcontrolin
heavy seas, strong current or high winds.
Lossof control when docking.
As we cannot possibly know of andadvise
the boating public of ALL conceivable
boatlmotor types and/or poor operating
practices, the final decision of whether or
r~ot to use a LANYARD STOP SWITCH
rests with you, the owner/driver.
We strongly recommend that other occu -
pantsbeinstructedonproper starting and
operating procedures should they be re
-
quired to operate the outboardandboat in
an emergency.
WARNING
Itisdifficult for apersonstanding or float -
ing inthe water to move clear if they see a
powerboat heading toward them, even at
slow speed. Shift the unit to neutral and
shut off engine when your boat is near
people inthe water.
SERIOUS INJURY IS LIKELY IF A PER
-
SON IN THE WATER IS STRUCK BY A
MOVING BOAT, GEAR HOUSING, PRO
-
PELLER, OR ACCESSORY RIGIDLY AT -
TACHED TO YOUR BOAT OR OUT -
BOARD.
AWARNING
The use of accessoriesnot manufactured
or sold by Mercury Marine is not recom-
mendedforusewithyouroutboard. If your
outboard or outboard operating systemis
equipped withanaccessorynotmanufac
-
tured by Mercury Marine, be sure to read
theOperation andMaintenanceManualfor
that accessory before operation. If you
haven'tbeensupplied with suchamanual,
contact your dealer or themanufacturer of
the accessory to secure the applicable
manual.
AWARNING
USE CARE when transporting fuel con -
tainer, whetherinaboatorcar.DONOTfill
fuelcontainer tomaximumcapacity.Gaso
-
line will expand considerably as it warms
up and can build up pressure in the fuel
container. Thiscancausefuelleakageand
a potential firehazard.
TABLE OF CONTENTS
Page
Specifications
.................................................................. 5
....................................................
Outboard Motor lrtstallation 7
....................................................................
Propellers 10
..............................................
Conditions AffectingOperation.. 12
...............................
Fuel Mixtuleand Gasoline/Oil Recommendations
13
...........................................................
Break - in Procedure 17
.................................................
Manual Tilt System Operation 19
...........................
Quicksilver Side Mount RemoteControl Components 21
.......................................
Operation - Models with Remote Control 21
...............................................
Cowl Remcrval and Installation.. 27
........................................................
Emergency Operation 29
..................................................................
PowerTrim 30
Lubrication/Maintenance Guide ............................................... 33
Gear Housing
Lubrication.. ................................................... 34
............................................
Flushing OdboardCooling System 36
Ignition Maintenance ......................................................... 37
........................................................
Cleaning FclelFilters.. 39
Carburetor Adjustment
....................................................... 41
.....................................................
Trailering Hoat/Outboard 41
..................................................
Inspection and Maintenance 42
The descr~ptlonand spec~flcatlonscontalned hereln were Ineffect at the time thls guide
was approiad for prlntlng Mercury Marlne,whose pollcv sone of contlnuous Irnprove-
ment, rese ves the rlyht to dlscontlnue models at any $1 ne to change spec~f~cat~olrs
deslgns, mgbthods or procedures w~thoutnotlce and wltho ~tIncurring obllgat~on
Mercury Marine, Fond du Lac, Wisconsin U.S.A. Litho InU.S.A.
@11991, Bruriswlck Corporation
The following are registeredtrademarks of Ecrunsw~ck Corporation Auto -
Blend,Jet - Prop.Mariner,Merc,MerCathode.MerCrulse~,Mercury Mercury
Marine, Quicksilver,
R~de-Guide,and Thruster
OUTBOARD SERIAL
NUMBER LOCATION
ill"T""rii L-4
I JJ
L SerialNumber
Serial
Number

Models Without Power Trim*
30.
I - Top Cowl
2 - Rear CowlLatch
3 - Water Pump " Tell - Tale " Outlet
4 - Exhaust Relief Outlet
5 - Drive Shaft Housing
6 - Dyna Float Suspension
7 - Water Discharge
S - Trim Tab
9 - Tr~mTab Adjustment Bolt
10 - Jet Prop Exhaust
11 - Quicks~lverPropeller
12
- Skeg
13
- Oil Reservoir Tank Cap
14 - Oil Level Sight Gauge
15
- Fuel Line Connector
16
- EngineWiring HarnessIBattery Cables
17
- Steering Arm/Bracket
18 - Tilt Tube
19
- Auxiliary Tilt Switch
20
- Swivel Bracket
21
- Transom Bracket
22
- Trim Adjustment Pin
23
- Manual Tilt Release Valve
24
- Lubricant VENT Plug (2)
25
- Anti - Ventilation Plate
26
- Water Intake
27
- Speedometer Pickup Up
28
- Gear Housing
29
- Lubricant Fill Plug
30
- Tilt Release Lever
SPECIFICATIONS
I Recommended Spark Plug1 I NGK BU8H
I
I
Recommended Oil
Recommended Gasol~ne
Uuicksilver
2 - Cycie Outboard Oil
Any leaded or unleaded (lead
- free) gasoline,
with a minimum posted octane rating of 87
(research oztane number 90)
'International Only
Battery Rating
Transom Height
Minimum Reserve Capacity Rating of
100 Minutes and Cold Cranking
Amperage of 350 Amperes
Long Shaft
- 20 in. (508mm)
'Use NGK-BUZ8Hwhere radio frequency interference (RFI) suppression is requtred.

OUTBOARD MOTOR INSTALLATION
AWARNING
DO NOT OVERPOWER - Most boats are
ratedandcertifiedforthe maximumhorse
-
powercapabilities of the boat. Refer tothe
boat
" Certification Plate " for themaximum
horsepower timit. Ifindoubt, contact your
dealer.
IMPORTANT: For proper boat operation,
position the outboardonthe boat transom
inrelation to the boat bottom andaccord
-
ing to procedures explained in the " Out -
board Motor lnstallationManual. "
LIFTING OUTBOARD
ACAUTION
After outboard removal, DONOTturnout -
boardupsidedownorlay onitsside. Water
couldenterpowerheadcausingdamageto
internal engine components.
1 " Finger grip wellsnarelocatedat the top
rear and alcrng both srdes of the bottom
cowl.
TRANSOM HEIGHT
ACAUTION
WEDONOTrecommendoutboardmount -
ingheightsinexcessof 22-112in. (572mm).
Excessive mounting heights require that
extreme care be taken to ensure proper
water flowtowater intakeports forengine
cooling.
2 Proper transom height is important for
best boating performance.The gear hous
-
inganti - ventilation plate shouldbeparallel
toandat the samelevelas the boatbottom.
MOUNTINGOUTBOARD ONTRANSOM
AWARNING
Before operating, outboard(s) MUST BE
SECUREDtoboattransomwithfour1/2 in.
diameter bolts and locknuts. as follows:
2boltsmustbeinstalled thruuppermount
-
ingholes and 2 bolts thrulower mounting
holes. Installationmustbewater
- tight,and
outboard should be checkedfor tightness
onthetransomduringoperation. Failureto
boltoutboardtotransom (usig
4 bolts and
locknuts,as shown) may result indamage
toboat and/or lossof outboardandpossi
-
ble injury to occupants of boat.
Marine sealer must be used on shanks of
mounting bolts to make
a water - tight
installation.
IMPORTANT: DO NOT use an impact
driver when trghtening transom mounting
bolts.
3 Place outtoard on center line of boat
transom and drill through transom using
upper bolt holes in each set of transom
bracket mounting holes as guides.
4/4A Secure outboard to transom with
bolts, locknut, and washers prov~ded.
TRIM INANGLE ADJUSTMENT
5 Trim angie of the lower unit has a dis -
tinct effect or: performance and handling.
On some boats, due to the transom angle,
trimming the outboard down
(IN) too far
may result in ilndesirable or unsafe steer
-
ing conditions at planing speeds. If these
steering cc~r~ditionsare experienced,
under no circ,umstances should the out
-
board be opeeated without a trim adjust -
ment pin and without the pin adjusted in
the proper holes to prevent unsafe han
-
dling characteristics. See your Authorized
Dealer.
IMPORTANT: Propeller shaft tilt willaffect
boatperformance. Withtheoutboardtilted
in, propeller forcewillmake theboat want
to go into a right
- hand turn. The situation
reverses when the lower unit is tilted out
wellpast vertical. The operator must resist
this force to keep the boat on a straight
course. Refer to TRIM TAB ADJUST
-
MENT.

OUTBOARD
TILTLOCK LEVER
MOTOR INSTALLATION
(Continued)
1 Locksoutboardina fully tilted position.
ACAUVION
Outboard must not be runin full tilt lock
position, as water pickups in lower unit
wouldbe out of the water and water pump
and/or engine would be damaged.
To engage tilt lock lever:
Tilt outboardtofullupposition.Pushin o~n
tilt lock lever knob and turn tilt lock lever
toward transom bracket. Lower outboard
until tilt lock lever rests on transorn
bracket.
To disengage tilt lock lever:
Tiltoutboardtofull upposition.Push Inon
tilt lock lever knob and turn tilt lock lever
away from transom bracket.
TRIM TAB ADJUSTMENT
2 The trimtab will help to offset steering
pull caused by propeller torque at high
speeds or extreme tilt angles. If boat pulls
to the left, loosen bolt and rotate trailing
edge of trim tab tothe left (asviewed from
behind outboard). If boat pulls totheright,
rotate trimtab to right. Tightencapscrew
IMPORTANT The trim tabismade of spe -
cial alloy to protect outboard housings
from galvanic corrosion. DONOTpaint or
place protechecoating on the trim tab.
BATTERYand ELECTRICAL
ACCESSORIES
ACAUPllON
Failure to observe correct polarity when
connecting battery leads to battery will
result in damage to the charging system
onelectric starting models.
IMPORTANT: Securebatteryinafavorable
positioninthe boat.
Any accesso41es such as hor~~s,Ilghts,
etc , should b(. properly fusedandinstalled
w~thconnectimsattached d~rectlyto bat -
tery ternt~nals
MOUNTINGFUEL TANK and
CONNECTING FUEL LINES
Arrangefuel linesothat itdoesnotbecome
tw~sted,kinked, pinched or stretched
3 Connect t )el l~neto outboard Make
sure fuel l~n~connector IS locked on out
-
board fuel cojinector

PROPELLER SELECTION
bclrct a propeller that wfllallow engine to
vp~~ateat ornear topof reconimendedfull
throttle RPM range wtth a normal load
Maxinium engine speed (RPM) for pro -
peller selectton extsts when boat speed ts
rllnxltiiuni and trlni IS nilnlmuni fol that
sptt cl (H~gh RPM caused by excessive
ing correct propeller.) Normally, there IS a
300 to 500 RPM changebetween propeller
pitches. Full throttle RPM range is listed tn
SPECIFICATIONS.
If the engfne RPM during full throttle oper
-
ation is below the recommended range
shown in SPECIFICATIONS, propeller
MUST
BE changed to prevent loss of per-
PROPELLER REMOVAL
PROPELLER
(Continued)
AWARNING
Beforeattempting toremoveorinstallpro -
peller, remove spark plugleads from spark
plugs to prevent engine from starting
accidentalty.
1 Remove top cowl (see COWL RE -
MOVAL andINSTALLATION) and d~scon-
nect spark plug leads.
2 Place wood block between propeller
blade and anti-ventilat~onplate to prevent
rotation.
3 Turn propeller shaft nut counterclock
wise to rerriove nut.
4 Slide tab washer, propeller and splined
thrust hub off propeller shaft.
PROPELLER REPAIR
Somedamagedpropellerscanberepalred
Consult yo Ir Authortzed Dealer
PROPELLER INSTALLATION
IMPORTANT: Periodically check propeller
nut for tightness during boating season.
5 Apply a I beral coat of one of thefollow-
mgQuickst ver lubrtcants to the propeller
shaft; Special Lubricant 101, Antl-Corro-
sion Grease or 2 - 4 - C Mar~neLubricant.
6 Sl~desylined thrust hub onto propeller
shaft wtth tqrust
hc b shoulder " toward
gear housln
J
Sltde pro$rller and tab washer In that
order, onto ,haft anc fnstall propeller nut
Place a
wcod block between propeller
blade and antt-vetntilation plate to prevent
rotatton.
Turnpropt
11-71 shaft nut clockwise Ustng d
socket wrench TIGHTEN NUT SF-
CURELY [rr~ntniunl of 55 Ib ft (74 6 N m)
of torque]
Bend tab otl tab washer to secure pro -
peller nut
Reconnect ssark pluq leads and installtop
cowl
IMPORTANT: After first use, bend tab
straight, retightenpropellernut [mininwrn
of 55 Ib. ft. (14.6 N.m)] andagain bend tab
on tab washer tosecure nut.
ACAUTION
Operation with a loose propeller could
cause damage to the thrust hub and gear
housing during acceleration, deceleration
or when shrfiiinggears.

ITIOWSAFFECTING
OPERATION FUEL MIXTURE
and GASOLINE/
OIL RECOMMENDATIONS
AWARNING
USE CARE when transporting fuel con -
tainer, whetherinaboatorcar.DONOTfill
fuelcontainertomaximumcapacity. Gaso -
line will expand considerably as it warms
up and can build up pressure in the fuel
container. Thiscancausefuelleakageand
a potential fire hazard.
AWARNING
FIRE AND EXPLOSION HAZARD: Fuel
leakage from any part of the fuel system
can be a fire and explosion hazard which
can cause serious bodily injury or death.
Careful perr~dicinspection of the entire
fuelsystem
IS mandatory, particularly after
storage. All
t el componentsincludingfuel
tanks, whether plastic, metalor fiberglass,
fuellines, pr*merbulbs, fittings, fuelfilters
and carburetors should be inspected for
leakage, softening, hardening, swelling or
corrosion. Aoy sign of leakageor deterio
-
ration nece.isitates replacement before
furtherengire operation.
WEIGHT DISTRIBUTION
p oaitioning -' of weight (passengers and
gorir) inside the boat hds the following
i:fftxts:
A Shifting weight to real (stern).
s G~inerallyIncreases speed and engine
RPlll.
@ At extremes,cancause boattoporpoise.
Causes bow tobounce in choppy water.
e Increases danger of the following - wave
splashing intoboatwhen comingoff plane.
R. Shifting weight to front (bow).
e Improves ease of planing off.
Iniprovesrough water ride.
c Atextremes,cancauseboat toveerback
and forth (bowsteer).
s Reduces engineRPM.
GEAR HOUSING
If outboard is not tilted up when boat is
docked, marine vegetation may accumu
-
late. This growth MUST BE REMOVED
before operation; it may clog water inlets
and cause engine to overheat.
CAVITATION
Cavitationoccurs when water flow cannot
follow the contourof afast movingunder
-
water object, such as a gear housing or
propeller. Cavitation permits the propeller
tospeed up, butthe boat speed toreduce.
Cavitation canseriously erode the surface
of the gear housing or propeller. Common
causes of cavitation are:
GASOLINE RECOMMENDATIONS
ACAUTION
Use of improper gasolines and/or oils can
cause serious damage to your outboard
motor. Because of thepossible adverse effects of
alcoholingasoline, itisrecommendedthat
only alcohol
- free gasoline be used where
possible. If only alcohol
- containing fuelis
available, or if the presence of alcohol is
unknown, then increased inspection fre
-
quency for leaks and abnormalities is
required.
Any leaded or unleaded (lead
- free) gaso -
line, with a minimum posted octane rating
of 87 (research octane number90) issatis
-
factory for use in these model outboard
motors.
A. Bent propeller blade or damaged gear
housing skeg.
B. Raised burrs of sharp edges on pro -
peller or gear housing. However, gasolines containing alcohol,
either methyl alcohol (methanol) or ethyl
(ethanol)may cause increased:
C. Weeds or other debris snagged onpro
-
peller or gear housing. OIL RECOMMENDATIONS
Corrosion of metal parts
VENTILATION
ACAUTION
Theuseof otherthanrecommendedgaso -
line and Quicksilver 2 - Cycle Outboard Oil
oranacceptable NMMA TC
- W 11'"oilmay
cause piston scoring, bearing failure or
both. DONOT, under any circumstances,
use multi
- grade or other highly detergent
automobile oils or oils which contain
metallic additives.
Deterioration of elastomer and plastic
parts.
Ventilat~onis caused by surface air or
exhaust gases which are introduced
around the propeller resulting inpropeller
speed
- up and a reduction in boat speed.
Excessive ventilation is annoying and
usually caused by:
BOTTOM OF BOAT Fuel permeation through flexible fuel
lines.
To maintainmaximum speed the following
conditions of the boat bottom should be
observed: Wear and damage of internal englne
parts.
A. Outboard installed too high on tran
-
som. Starting and operating difficulties
A. Clean, free of barnacles and marine
growth. Some of these adverse effects are due to
the tendencyof gasolines containingalco
-
holtoabsorb moisture from the air, result -
inginaphase of water andalcoholseparat -
ing from the gasoline in the fuel tank.
In an emergency, if Quicksilver 2
- Cycle
Outboard Oil isnot available, substitute
a
highquality 2 - cycleoilthat isintended for
outboard use and meets
NMMA rating
TC - W II'", shownonoilcontainer. Usethe
oilmanufacturer'srecommended gasoline-
oil mixture as shown on the label, not to
exceed 50:l
B. Outboardtilted out too far.
B. Free of dtstort~on,nearly flat where it
contacts the water. C. A missing propeller diffuser ring
D. Damaged propeller or gear housing
which allows exhaust gases to escape
C. Straight and smooth, fore and aft between propeller and gear housing The adverse effects of alcohol are more
severe withmethylalcohol(methanol) and
are worse with increasing alcoholcontent.

UEL MIXTURE and GASOLINE1
OIL RECOMMENDATIONS
(Continued)
50:l BREAK - IN FUEL MIXTURE - WlTHOIL INJECTION
16 U.S. oz. to 400cc to each
FUEL MIIXTURE and GASOLINE/
OIL RECOMMENDATIONS
(Continued)
MIXINGINSTRUCTIONS
AWARNING
Observe fire prevention rules, particularly
NOSMOKING. Mixfueloutdoorsorinwell
ventilated location.
IMPORTANT: Always use fresh gasoline.
Gasolinewhichiskeptintank toolongwill
form gum and varnish deposits which
cause trouble.
Mix fuel directly into remote tank. Pour
small, equal amounts of gasoline and oil
intotank.Mix thoroughly, thenaddremain
-
ing oil and gasoline. Mix again. Keep fuel
clean and
nix each batch of fuel exactly
the same way to avoid carburetion prob
-
lems.
Other Acceptable
NMMA
TC - W 11'"
Oils
IMPORTANT: Use recommended amount
of 2
- cycle oil. Toomuchortoolittleoilcan
cause performance problems, as well as
serious engine damage.
Use at Oil Manufacturer's Recommendations.
DO NOT EXCEED 50:l
BREAK - INFUEL MIXTURE
(WITH OIL INJECTION)
Dur~ngthe break-tn period (refer to
BREAK
- IN PROCEDURE) operate your
new outboardmotor onthe flrst15 gallons
of fuel, by
n !Xing gssol~ne/o!lIn the fuel
tank at a50
1 ratlo,as described Inthe 50 1
BREAK - IN FUEL MIXTURE - WlTH OIL
INJECTION hart
NOTE: The
50:l ratlo gasoline - oil in the
fuel tank combined with the metered oil
ratio supplied by the oil mjection system
willsupply ttxnecessary gasoline/oil mix
-
ture required for break - in lubrication.
After the
15 ~allons~f 50 1 break-~nfuel
has beenconsumed it
1s nolonger neces -
sary to nilx o~ftothe gasolne In the remote
tank, for normal oljeratlon

FUEL MIXTURE and GASOLINE/
OIL RECOMMEND
(Continued)
OIL INJECTION SYSTEM Filling Oil InjectionSystem
Oil Tank Capacity
AWARMNG
Warning hotn sounds momentarily as a
Tank Capa::ity ............... .O 766 gal
test whenever youswitch key from OFF to
(3.54 liters)
ON. Hornsoundsintermittentlytoindicate
Maximum Operattng Time at
low oil supply. Horn sounds steadily to
Full Throtrle Before Low Oil
indicateengine overheating. DO NOT IG -
Warning tiornSounds ...... .lo-1/2 hrs
ageNOREtoengine will result if the cause isnot
Oil Remain ng When Low Oil
immediately identified and corrected.
Warning Porn Sounds ....... 14 5 fl oz
(435ml)
1 Check oi level ustng sight gauge in
front side of opCOW!
ApproximaeeRunning Ttr~ie
Remaining at Wfde Open
2 Unscre~tank call and ffll tank with
Throttle
M hen Low 011 Warn- Quicksflver.'
- Cycle Outboard 011 or BIA
ing Horn Sounds.. .1-1/2 hrs approved
rC,-W II"p-edtlutedoil only
.........
Replace cab> tightly
BREAK - IN PROCEDURE
Operate your new outboard motor at var - IN IS COMPLETED. This includes full
ied throttle settings - not to exceed 1/2 throttle acceleration, pulling waterskters,
throttle (2500
- 3500 RPM) during the first or wide oper; throttle running.
hour or thc first five gallons of break
- in
fuel. Refer to
" Fuel Mixture and Gasoline/ Afterthefirsttwohouisof running,approx-
Oil Recommendations " - " Break - In Fuel inlately 10gallonsoffuel,fullthrottleoper-
Mixture. "
ation mav bc attained, but not sustained.
for the rerna~ningbreak
- in fuel (approxr-
During the second hour operatton, or the rnately 5 gallons.)
second 5 gallons of break
- in fuel, operate
-
the outboard at varied throttle settings not
toexceed 4500 RPM. For the next five hours of operation, full
throttle operation may, again, be attained.
DO NOT OPERATE YOUR NEW OUT - but ~ttsstroqlynot rrcommendedforsus-
BOARD MOTOR AT FULL THROTTLE tafned use (Notmore than 5 minutes of
UNTILTHE SECOND HOUR OF BREAK -
contfnuous v ide ope,) throttle )

UAL TILT SYSTEM OPERATION
(Models without Power Trim)
Models not equipped with power trim are
equippedwith a manual tilt assist system,
thatallows theoperator toeasily tiltand/or
lock theoutboardtoany tiltangle, fromfull
in(down) position, tofullout(up)position.
Additionally a hydraulic shock absorber
feature is incorporated into the system,
which acts to cushion kick
- up of the out -
board which occurs upon high speed im -
pact of the lowerunit withasubmergedor
heavy floating obstacle.
IMPORTANT: The manual tilt assist sys
-
tem utilized on this model, is designed to
be adjusted when the engine is idling in
neutral, or with the engine shut off. An
optionalpower trim kit isrecommendedif
trim adjustment of outboard is desired
while boat is underway. Refer to Quick
-
silver ACCESSORIES MANUAL for kit
application.
BASIC TILT OPERATION
To Tilt Outboard:
1 Push tilt release lever fully toward rear
of outboard
(TILT position).
2 Grasp outboard using " finger grip
wells
" at rear of top cowl and tiltoutboard
manually.Pull tiltreleaseleverfully toward
boat transom
(LOCK/RUN) to hold out -
board at desired tilt position; or secure
outboard in full tilt up position, using tilt
lock lever (refer to
OUTBOARD MOTOR
INSTALLATION).
AWARNING
Tilt release lever MUST BE set to LOCK/
RUN position, during normal outboard
operation. Failure toset tilt releaselever to
LOCKIRUN position, could cause out -
board tobe tilted upand out of the water
whileoperatinginreverse,orduringdecel
-
eration in forward, resulting in possible
loss of boat control.
Tilting Outboard Out (Up) Will:
Lift bow of boat.
Generally increase top speed.
Transfer steering torque harder to left
on standard or slightly elevated transom
height ~nstallations.
Increase clearance over submerged
objects.
Inexcess,cause porpolsing and/or vert-
tilation.
Cause overheating if tilted out (up)
beyond water p~ckup.
Tilting Outboard In(Down) Will:
Result inquicker planing off, especially
with heavy loads.
Generally improve ride Inchoppy water.
lncrease right hand steering torque.
Improve accelerat~onat planing speeds.
In excess, cause boat to veer to left or
right (bow steer).
AWARNING
Unsafe steering conditions may result at
high speed with the outboard tilted all the
way
in (down). Test your boat for changes
in handling whenever tilt angle adjust
-
ments are made.
SHALLOW WATER OPERATION
ACAUTION
If outboard will be operated in shallow
water, withoutboardtiltedbeyondapprox
-
imately 20" of tilt, followtheseprecautions:
DO NOT operate engine above 2000
RPM. When outboardis tilted beyond ap -
proximately 20' of tilt, the swivel bracket
willnothave side support.
Check that water level is above water
intake ports to avoid overheating and/or
water pumpimpeller damage.

QUiCKSiLVER SIDE MOUNT
REMOTE CONTROL COMPONENTS
1 Neutral Lock Bar - prevents accidental
shift and throttleengagement.Bar mustbe
squeezed before control handle can be
moved, from NEUTRAL.
2 Control Handle - controls forward,
reverse motiori and engine speed.
3 Ignition/Choke Switch - turns engine
ON and OFF actuates electric starter
motor actuaies carburetor enr~chener
andsoundsalarmhornmomentarily totest
warning circu ts
4 Lanyard Stsp Sw~tch - Refer to page 1
for explanation The lanyard cord/clip,
when used wlth the lanyard stop switch
MUSTBEconnected toboatdriver Should
driver beunabletoreachsteeringwheelor
remote contrcl, the lanyard cord/cllp will
bepulledfrom lanyard stopswrtch and the
engine w~llst ut OFF This lanyard stop
sw~tchSHOUl D NOTBEUSEDas normal
engine shut-otf
IMPORTANT: The Lanyard Stop Switch
canberepositionedtoRUNwithorwithout
lanyard cordlclip so that engine can be
5 Engine can I,e restarted with or without
lanyardcord/cl$pInstalledbysimplypush
-
ing switch up to run position If necessary
push switchdomw~thkey to
reinstall clip
6 F A S T I D L E L E V E R - AMWS engine
throttle advartxment, without shifting
gears, to assist engine starting.
7 THROTTLE FRIC7ION Adjustmerit
Knob - Adjusrs control handle frlction so
that boat spewcanbeset anddriver does
not have to hol
I handle Turn knob clock -
wise to increas? frictio? DO NOT thread
knob all the
wa] out
8 Tachometer Receptacle - Wiring har -
ness connector for optional tachometer.
9 Trlm/Tilt Snftch (For Outboards wlth
Power Trim) - -r~moutaoard out (up) by
pressing up
CII switch tr~moutboard in
(down)by pres dng do#n on swltch
10 Warning Horn Located in Remote
Control. Refer to
" Operation " - " Warning
Horn Operatior" following.
restarted.
OPERATION
MODELS WITH REMOTE CONTROL
WARNING HORN OPERATION
ACAUTION
This outboard isequipped with a warning
the warning horn fails to sound
system tosignal engine overheat and low
tarily when the key switch is turned from
oil level in the oilinjection system.
the "OFF" position to the " ON" positionor
The warning horn is located inside of side
continually sounds, see an Authorized
mount remote control. If boat is equipped
Dealer. DO NOToperate the engine.
withapanel orconsoleremotecontrol, the
warning horn
IS incorporated behind the The warning system gives the following
key switch in the key switch wiring har
-
indications:
ness. MOMENTARY BEEP (when key switch is
Each timethekeyswitch isturnedformthe turnedon)
- circuit test of warning system.
" OFF " position to the " ON " position the
STEADY BEEP - Engine is overheated,
warninahornwillsoundmomentarily. This
d
indicates thatthe warningsystemwillfunc- . INTERMITTEN I BEEP - 011 in~ectronoil
tion when the tngine is running level

OPERATION
ELS WITH REMOTE CONT
(Continued)
OPERATOR andPASSENGERS SHOULD
BE SEATED WHENEVER ATTEMPTING
to START the ENGINE.
Before attempting to start engine, MAKE
CERTAIN that outboard is shifted into
NEUTRAL and that area around boat is
clear (toget underway).
IMPORTANT: Remote control MUST BE
equipped with a neutral start switch
-
remote control handle MUST BE in NEU -
TRAL position in order to operate the
starter.
BEFORE STARTING
Tilt outboard to vertical position
1 Check oil level in oil injection system
tank
- add oil as necessary.
2 Check fuel tank(s)for sufficient fuel
3 Open air vsnt onfuel tanks
4 Squeezefuel primer bulb until itis firm.
5 Place control handle in NEUTRAL.
Check that lanyard stop switch is in RUN
position.
AWARNING
Theneed for steering systemhemote con -
trol inspection or service is indicated by
increased effort or binding while turning
the steering wheel, excessive free
- play or
unusual sounds. If any of these problems
exist, contact your Dealer immediately.
Use extreme care if operating boat before
repairs are made.
Check remotecontrol andsteeringopera -
tion.
Turn key from
OFF to ONto test warning
circuit, the warning horn should sound
onlymomentarily. If itdoesnot, contact an
AuthorizedDealer.
ACAUTION
DO NOT operate starter motor for longer
than
30 seconds or starter motor may be
damaged.Allowatleast
2 minutesbetween
starting attempts.
IMPORTANT: Starter circuit 1s protected
by SFE
20 AMP fuse on starboard side of
engine. If starter fails tooperate, check for
blownfuse. BEFOREreplacingfuse,locate
andcorrectcause of overload.
STARTING COLD ENGINE
6 Lift Fast Idl+ Lever to a point halfway
between full
up and full down position.
IMPORTANT: With Fast ldle Lever in up
position, control handle CANNOT be
moved into FORWARD or REVERSE
GEAR.
7 Turnkey clo,:kwrse to HUN posit~onand
push Inonkey
to activateenrlchener Hold
key In the pbsned In
position for 4 to 6
seconds, the1 turn key clockw~sepast
RUN poslttonto START
A C A U T I O N
Be prepared to alter throttle setting when
engine starts. DO NOT allow engine to
exceed
2500 RPM while inNEUTRAL.
As soon as ei~ginestarts, allow key to
return to
RUN positlorr and release en-
r~chenerif eny nefalters,pushinonkeyto
actuate enrichener agar1
Check for steidy stream of water from
water pump
" Tell - Tale " If lnterrn~ttentor
no flow
IS observed, STOP ENGINE IM -
MEDIATELY. Check " Tell - Tale " stream
often during outboard
operation
8 After warm-r p, returrlFast ldleLever to
full down posttlm
ACAUTION
A continuous warning horn will sound if
engine overheats. Stop engine immedi
-
ately if alarm sounds. Locate and remedy
cause of overheating before using out
-
board.

OPERATION
MODELS WITH REMOTE
CONTROL
(Continued)
STARTING WARM ENGINE
Place contro handle InNeutral Turn key
clockw~sepa4RUN posltlonto START
As soon as engine starts, allow key to
return to RUN pos~tion.If englne falters.
push in on key to actuate enrichener
NOTE If e'tglne falls to start, follow
STARTING
C OLD ENGINE procedure
Check for steady stream of water from
water pump 'Tell
- Tale. " If intermittent or
no flow
IS observed, STOP ENGINE IM -
MEDIATELY Check "Tell-Tals" stream
often during outboard operation.
ACAUTION
A continuous warning horn will sound if
engine overheats. Stop engine immedi
-
ately if alarm sounds. Locate and remedy
cause of overheating before using out
-
board.
THROTTLEISHIFTING GEARS
1 Squeeze Neutral Lock Bar and push
control handle forward to engage FOR
-
WARD GEAR Pushing handle further for -
ward ~ncreast-senglnespeed.
ACAUTION
Exercise extreme care when operating in
REVERSE GEAR. DO NOToperate engine
at highspeedsinREVERSE.
Squeeze Neut al Lock Bar dnd pull back
on control kt, rldle to engage REVERSE
GEAR
STOPPING THE ENGINE
2 Shift to NE JTRAL ~ndtul I I key coun-
terclockwlse to OFF posltlon
IMPORTANT: In an emergency the out -
board can be stopped at any speed, in or
out of gear. For normal operation, idle
engineandshlfttoNEUTRALbefore turn
-
ingkey to OFF.
ACAUTION
Ifoutboardwilt notbeoperatedfora period
of time, ifitistoberemovedfromboat, orif
it is to be tilted up, prevent spillage from
carburetor throat and bowl and gum for
-
mations in the carburetor during storage
as follows:
Disconnect the fuel line.
Allowengine toidleuntilitstops,indicat
-
ingthe carburetors have run dry.
Turn electric start key to OFF.
Disconnect positive (t) battery lead to
prevent accidental starting or shorting.

COWL REMOVAL and INSTALLATION
ACAUTION
INSTALLATION
DO NOT ATTEMPT TO REMOVE OR
Position cowl aver engine
INSTALL COWL WHILE ENGINE IS RUN -
NING. Lift up on rea
r
of cowl and tilt it forward
slightly to engage front hook.
REMOVAL
STOP ENGINE
Lower cowl
tn% pos~tionand engage rear
latch
1 Push down to d~sengagecowl latch at
Push latch UP to secur* ~wl
rear of outboard.
2 Liftuponrear of cowlandt~ltforwardto
disengage cc,wl hook at front of outboard.
Lift cowl off

EMERGENCY OPER
ACAUTlON
Batteryleadsmust beconnected tobattery
(even if battery is dead).
Remove cowl (refer to COWL REMOVAL
and INSTALLATION.)
1 Remove4 wing nutsfromflywheel cover
andliftcover off.Remove starter ropefrom
pocket inside cowl.
2 Shift remote control into neutral.
AWARNING
When using emergency starter rope to
startoutboard, the start
- in - gear protection
provided by the remotecontrolisinopera
-
tive. Make sure to position remote control
handle into neutral before starting out
-
board toprevent outboardfromstarting in
gear.Suddenunexpectedaccelerationcan
cause serious injury or death.
3 Engage ktnot of starter ropeinoneof the
flywheel notches arid wind rope clockwfse
around flywheel
Turn key switch to RUN
4 If engine is cold, push button on fuel
enrichener. Walt 4 to 6 seconds. Avoid
using enrichener if engtne is warm.
Observe preliminary motor starting steps
as outlined in OPERATION procedures
and pull rope to start motor. Repeat, if
motor has not started.
AWARNING
Caremustbetakenwhenusingemergency
starting procedure.
DO NOT attempt to
replace flywheel cover or cowling after
enginehas started. Stay clear of flywheel.
DO NOT WEAR loose clothing whenoper -
atingunder these conditions.

OWER TRIM
Keep a tight grip on the steering wheell
tiller handle, especially when changing
speedor trimmingboatandoutboard. Trim
outboard after reaching cruising speed.
While trimming, steering loads will vary
and will pull in one direction until a bal
-
anced condition has been attained. If the
outboard is trimmed past the balanced
steering condition, the steering wheell
tiller handle will then have a tendency to
pull in the opposite direction. Excessive
trimmingpast the balanced steering posi-
tior1will result inincreased steeringloads
and, in most boating applications, a de
-
creaseinperformance.
OPERATION
The rernote control handle is equipped
with a trinlitilt sw~tchwhich tilts the out
-
board OLI~ (up) and in (down). Refer to
QUICKSILVER SIDE MOUNT REMOTE
CONTROL COMPONENTS.
ACAUTlON
If outboard will be operated in shallow
water with outboard trimmed beyond
20 "
trimlimit, follow theseprecautions:
c DO NOT operate outboard above 2000
RPM. When outboard is trimmed beyond
20' trim limit the swivel bracket will not
have side support.
* Check that water level is above water
intake ports to avoid overheating or water
pumpimpeller damage.
Outboardcanbetrimmedbeyond20" limit
for launchrng, trailering, shallow water
operation, etc.. if engine speed does not
exceed 2000 RPM.
To trim/trlt outboard out (up)
- push upon
switch.
To trim/tilt outboard In (down)
- push
down on switch.
To trim/tilt outboard beyond 20
" limit -
decrease engine speed to less than 2000
RPM and push up on switch
Trimming OutboardOut (Up) Will:
Lift bow of boat
Generally increasetop speed
Transfer steeringtorque harder toleft on
standard or slightly elevated transom
height installations.
lncrease clearance over submerged
objects.
Inexcess, causeporpoising and/or ven -
tilation.
Cause overheating if trimmed out (up)
beyond water pickup.
AWARNING
Some high speed hulls may become un -
stable if outboard is trimmed too far out
(up). To correct such instability, reduce
power GRADUALLY and trim outboard
downhnbeforeresuming highspeed. Cut -
ting power too quickly may momentarily
create evengreater instability.
POWER TRIM
(Continued)
TrimmingOutboard In(Down) Will:
Result in quicker planing off, especially
with heavy loads.
Generally improve ride inchoppy water.
lncrease right hand steering torque
Improveaccelerationat planing speeds.
In excess, cause boat to veer to left or
right (bow steer).
AWARNING
Unsafe steering conditions may result at
highspeedswith the outboardtrimmedall
the way in (down). Test your boat for
changes inhandling whenever trim angle
ischanged.
CHECKING OIL LEVEL
Check power trim oil level periodically as
follows:
ACAUTION
DONOT open fill screw while outboard is
in(down) position. The reservoir is under
pressure and oilmay blow out of fill hole.
Tilt outboard
is full out (up) position and
engage tilt lock lever (Refer to OUT
-
BOARD MOTCIR INSTALLATION.)
1 Remove f! I cap from trim pump reser-
volr
2 Fluid level should be to bottom of
threads in fill t;ole; if not, add Quicksilver
Power Trim
& Steering Fluid or; Automo -
tive Transmission Fluid (ATF) Type F, FA
or Dexron II
Reinstall fill cap
TILTING OUTBOARD MANUALLY
Should the power trln system become
inoperatwe,the outboard canbemanually
t~lted,as follobs.
3 Rotate man~laltiltreleasevalve 2-3 turns
to the left (counterclockwise).
4 Grasp outboard using " finger grip
wells
" at rear of top cowlandtiltoutboard
eitherupordownmanually. Rotatemanual
tiltrelease valve full right to holdoutboard
at desired tilt position.
ACAUTION
Before operating outboard manual release
valvemust be turned fully clockwise.

LUBRICATIONIMAINTENANCEGUIDE
ITEM
1
-
2
TYPE OF
LUBRICANT
or FRESH WATER SALT WATER
MAINTENANCE FREQUENCY FREQUENCY
DESCRIPTION
Throttle/Shift
Linkage
(allPivot Points) A
I
Every 50 days
I
Every 30days
A Every 60 days
Tilt Lock Lever
Swivel Pin/
Bracket A Every 60 days
( Every 30days
Outboard Exterlor
Trim Tab
Clean and
I
Once a season Occasionally
Inspect
I
Eve?.y30 days
Necessary
lnspect and
Tighten Prop Every 50 hours Every 50 hours
tt
Propeller
A Once a season Every 60 days
Check and fill after Check and fill after
1st 10 days, then 1st lodays,then
every 30days ever
- y30days
B
Drain and Refill Drain and Refill
after 1st 25 Hours, after 1st25 Hours,
then after every 100 then after every 100
hours, or once a hours, or once a
year before storing year before storing
A Every 60 days Every 30days
A Every
60 days Every 30days
D Every 60 days Every 30 days
Propeller Shaft
Gear Housing
Ride
- Guide*
Steering Cable
Tilt Tube
'Steering Link
Rod Pivot Points
'Power Trtm
Pump
011 Level
All Bolts.
Fasteners, etc. Every 100
hours
Type of Lubricants
'If Equipped
A =Quicksilver 2
- 4 - C Marine Lubricant C
- Quicksilver Power Trim & Steering
B
= Quicksilver Gear Lube Fluidor; (ATF) Type F. FA or Dexron II
D SAE 30W Motor Oil

A USING LUBRICATION
CAUTION
Have gear housing checkedby your local
service dealer if any of the following are
found:
Water drains from filler hole.
* Metal particles are present onmagnetic
fill plug.
NOTE: Presence of asmallamount of fine
metal particles (resembling powder) indi
-
cates normal wear.
Lubricant appears milky brown.
c Large amounts of lubricant must be
added to fillgear housing.
IMPORTANT: DO NOT use automotive
lubricantingearhousing. Useonly Quick
-
silver Gear Lube.
CHECK LUBRICANTLEVEL
IMPORTANT: lnspect fill and vent plug
washers for damage. Use new washersas
needed.
1 Remove lubricant fill plug and washer.
Note amount of metal particles on mag
-
netic fill plug.Refer to caution, preceding.
2 Insert lubricant tube in f~llhole.
3 Remove both vent plugs with washers.
IMPORTANT: Neveraddlubricant to gear
housing without first removing both vent
plugs, as trapped air will prevent housing
from being filled. Fill gear housing only
when outboardisin operating position.
4 Add lubricant to gear housing until ex -
cess starts to flow from one (first) vent
hole. If this requires more than
2 - 3 fl. oz.
(60-90ml) of lubricant, refer outboard to
authorized dealer. Install vent plug and
washer for this vent hole only.
Continue to add lubricant until excess
starts to flow from remainmg vent hole.
Install remaining vent plug and washer
Remove lubricant tubeand install cleaned
magnetic fill plug and washer.
AF? HOUSING LUBRICATION
(Continued)
DRAINING andREFILLING GEAR
HOUSING LUBRICANT
With outboa~din operating position place
a clean container under gear housing fill
hole.
IMPORTANT: lnspect fill and vent plug
washers for damage. Use new washers as
needed.
1 Remove lubricant fill plug and washer.
Note amoun! of metal particles on niag-
netic fill plug Refer tocaution,preceding.
2 Remove toth vent plugs with washers
and allow sufficient time for all lubricant to
drain.
IMPORTANT: Never add lubricant to gear
housing without first removing both vent
plugs, as trapped air will prevent housing
from being tilied. Fill gear housing only
when outboard is inoperating position.
3 W~thoutbcsrd 11) operat~ngposltlon
~nsertlubrlcan, tube Into f~llhole
4 F~llgear hr*us~ng~~thlubr~cant,untll
excess starts t3 flow from one (f~rst)vent
hole (approx~r~ately
13 fl oz [370ml] of
Qutcks~lverGc~arLube) Install vent plug
and washer fo th~svent hole only
Cont~nueto ddlubr~cantunt~lexcess
starts to flow
f om remalnlng vent hole
Install renlalr~i,g vent plug and washer.
Removelubricant tube and installcleaned
magnetic fill p~ugwith washer.