Ski-Doo Alpine 399R 1971 User manual

INDEX
~N CASE Of EMERGENCY 24
emergency materials - assisting
stranded vehicles '"--trouble shooting.
EMERGENCY
GUIDE 25
- '"~-----~---,,-
TROUBLE SHOOTiNG
GUIDE 2S, 21
~ .• _~____ ~. __ • ·T ~_ .. ·_ •
STORAGE 28, 29, 30
track -suspension - ski assembly -
fuel tank - carburetor _.- cylinder lu-
brication
-gear box - controls _.~
pulleys -battery' - chassis,
-------"~._-_ .._-'----,~,_.__.... _-~---~-~----_ .. _-~-
GLOSSARy..... •.. ........ '". 31
HOW TO IDENTIfY YOUR
SK~-DOO SNOWMOBilE , ~
parts &. -service
00'$ 14
DON'TS .....• 15
~-~--~-----
lUBRICATION , 16, 11
ski assembly -steering mechanism -
throttle &brake -- gear box oil level -
bogie wheels - driven pulley -- drive
pulley -(TOOL KIT & USES).
----------_._. ._--_.
CUTA.WAY VieW... . . 18
--~._~-
MAiNTENANCE ... 19, 20, 21, 22, 23
spark plug(s) -- battery -suspension
springs -tracks --- carburetor ·- ..drive
belt condition _.- rectifier fuse _. drive .
chain tension
-- brake - drive belt
wear - steering adjustment --- engine '
head nuts - engine mount bolts -
electrical wiring - vehicle inspection.
13
_._--_._-------_.
GENERAL iNtRODUCTION '1
..,... ..... .....- ........ ..-, ........... __ ..-.-, ........ ..", .......... _~,.,_'.~ ......... ~_ ....... , ................... '~" ..... H_
SERIes INTRODUCTION.................. 2
...... ,,_ .. _-_._-- _"'_._,. -_._-~,-,-' , .. "..--. ,~ .. "".~-~
SPECIFlCAllONS 3
------~,--~-~~_.~._--~.-
fUEL MIXING 4, 5
fuel mixture ratio - which gasoline to
use - which oil to use - fuel mixing
procedure.
---~~-_._-_ ........ _-_._--
CONTROLS & INSTRUMENTS, ... 6, '1
steerIng -throttle lever -- brake lever
-~ ignition switch -- Ught switch ~_.
choke - manual starter -gear shift
lever - lighter -tachometer - fuel.
.... _--,-,-
PRE-START CHECK...... S
fuel tank quantity -throttle operation
- brake operation - steering opera-
tion - skis and ski legs -- (BREAK-IN).
~~--~-~----~------~.
STARTiNG PROCEDURE 9
electric starting - manual starting.
NEWFEATURES.. .. ..
DRIVING HINTS 10, 11
driving positions -turning -surface
conditions -tip - about your vehicle.
" __ ~_._. __ ",,,,~_~· ~_~ __ ~,, ,,__.__.. ,~·._n . _.~_._
CLOTHING &WEATHER ... 12
chill factor chart.

INTERNAL
FEATURES
I!.UJSTR~lEO:
VAlMONT

FEATURES
2~

the
larcest snowmobilinq fraternl-
i::lr..-uuu SnIDWI:11obil€3rS, we'll be
looking on the Trails -mean-
For best results,
time each
steps listed n de r 'Weeki
'Monthly'. The t(~W moments
pay you dividends
years of trouble-free service.
nrcner Lubrlcatlon
detailed in the
be to
your
0i'\I-U'VO snowmobile. there are
would like to
the in its weather-
plastic envelope, Ski-
snowmobile at ail times. In the
event that it
can often a
minimum
Manual.
At Bombardler
READ the entire Owner's Manual
tnorouontv before out Wheth-
are an
driver or
there is so much that
new, that you wm find the contents
And
upkeep be
overstressed.
Treat Maintenance as
part of the overall fun and vehicle
wm retain that look and
as as you
want
-1-
purcnase of a
Ski-Doo snowmobile and welcome
chanqed the face
of winter. This year, Lim-
ited presents agalaxy of 20 sparkling
new in 6
series-
OlYMPIQUE,
..... , ,-""r and VAlMONT.
Whichever model you have chosen,
you
wll! find it bum to the highest
standards of and crattmanshlp,
by the largest manufacturer of
snow Bombardier Ltd. - the
people
who oricinated snowmobllino
Furthermore. each vehicle is backed
an intj~rn,::ltinn,,,,1 Ski-Doo Distributor
Dealer so that wherever
you are, in Snow Parts and
Service are available.

mont
across
STANDARD FEATURESINCLUDE:
Twin 15" Tracks
1II Singie Ski <Ill For~
ward/Neuirai/Revel'l!Ie Transmission@!
Underseai Storage Compartment
1II
Front illInd Rear Handles <Ill Side Rem
fleetors " PUllih Plate $Disc Brake
System
<Ill Trailer Hitch
VALMONT
ALPINE

39"
578
520
35"
TWO
Electric
2x15"
13/29
Standard
2x 76M.M.
35"
39"
TWO
24
8.75:1
E!ectric
-------
Standard
75W 75W
W-240-T·l M-280-T-31
018" - .022" _018" - _022"
."---_._~--~_._--
018"
113%"
105V2"
-------------
-------------_ .. ----
"When ordering replacement spark plug(sL spec ity number shown above.
-3-
VAUIIONT

The Fuel ConSllm~)tion
*Running Time (in Hours and Minutes)
fUEL CONSUMPTION TABLE
IMPORTANT: The single hiilrgestcause
of difficulty on the treil is running out
of fuel. Be sure it does not happen to
you. Don't explore new areas unless
you have established fuel stops Of are
certain of an ~dequate f!.lei sU!!)$)ly.
FUEL MIXTURE RATIO
For the Rotax engine that
powers Ski-Doo the
correct gasoHne to oil mixture ratio is
20 parts GASOliNE TO '1 PART Oil.
The of using the correct
Fuel cannot be overstressed.
Prior has shown that the
brr,.,,,,t cause of pl1,ninA darnaos
lmorooer fuel mixtures.
WHICH GASOLINE TO USE
The correct 1"'I",,,,,.,li<,,:>
snowmobile avail-
able from the pump at all service
stations.
WARNING ~ N~IJ~r experiment with
differing
twls or fuel ratios. Never
use naphtha~ methanol or simUar
products.
WHICH Oil TO USE
only Ski-Doo
available from
dealer. This blended for
the enl':!inI9, resistance
to carbon tormanon, excellent anti-wear
characteristics and reduces de-
to a minimum,
WARNING ~ Unless absolut~/y
c~ssar1 (In case of
not use oUlfbCJii!IIfl'l c~r ~
oU. Never UlStii munl~vJlSco$ity oils.
-4-
Fig. 2
Fig. 1
an
Will NOT OPERATE
gasoline to the
function properly, all o""in,,,,,
tive or snowmobile.
asnowmobile however.
first added to the in pre-
measured amounts. Then both oil and
should be mixed
Amixture COi'1taifnfr:rg
will cause overheating
which
could result in serious internet
demeae (such as seizure or even
acormectina rod or r.r;;mk"nt.ftJ
Amixture too much oil
cause excessive cerbon totmeuon re-
suttina in fouled
power.
SGALLONS, REGULAR GASOLINE,
'1 QUART, SKI .. DOO OIL =CORRECT
FUEL MIXTURE.

The Fuel Oonsurnotion
be construed as anoroximate
suits have been
static tests under fuli
take into
account such factors
conditions.
·less-than-ideal
etc.
A good idea is for you to rate the
Iormance of snowmobile at
first with a fu!1 fuel
mark the time of
Then note time
half-full. on different
to a mean average of
FUEL SAVING TIPS *
Don't let idle for more than
brief for
compa-
nions catch
rest on the
your lenition
Not only do you save
lessen the chance of
* Don't run with throttle
fully open. You wi!1 find your ",n·,..,;,.,;",
performs just as efficiently at
throttle. To determine, (when it is safe
to do so), bring vehicle up to full throttle.
then slack off throttle slightly until vehi-
cle starts to lose speed. Just before
vehicle loses is the of
con-
amount
shake thorouqhlv.
3. Add the remainder of the
and agitate
tainer.
4. with a fine mesh
screen Fig. 2) to orevern the
of water and foreign transfer
the fuel from tank.
FUEL MiXING PROCEDURE
1. To mix the and oil
use a clean container. Never
mix in
your Ski-Doo snowmobile tank.
2. Pour the 'fuli amount 0'[ ski-Doo Oil
for the total mixture into the
add half the
to be mixed and
-5-

THR011lE lEVER (A)
Located on handlebar. When lever
is increases.
When returns
to !DLE, Enqine
the aPI:)Ii€icl
STEERING
Your Ski-Doo snowmobile follows the
direction in which the are
rotated. tu to the rotate
To turn
CONTROLS & INSTRU
rotate left

is lo~
dashboard Push in to
pops up automatlcallv
eculoment on Valmont Electric
on all Modets. Push
CENTRE for neutral,
reverse.
when
m.
located on left side of
raise
dis-
Models Two
(n!:::!= ,'CHIl) dial on lower
of console. engage
turn dial clockwise to ON oosttlon
turn
lever,
on
Located on left handlebar. When lever
is action is aoplied,
When released,
to the OFF oosition. Brakinq
nronortlonate to the
A
NOTE: The purpose of the choke is to
reduce the amount of air tiowino throuat:
the in effect enrichino
H IF!ll i-1i/ mixture. However, teevtna cnot«
on after has started tank is
carbon formation inside the
turn choke
enaine has started.
MANUAL STARTER
Automatic rewind
gine
To
OFF posltion.
out to illuminate.
Single switch illuminates both head-
lamp and with
on Manual
engine runninq on Start Models.
NOTE: (Electric Start Models
NOT leave fights ON for more
brief periods, unless is tunnux),
CHOKE
(Alpine Models only). Two
iGNITION C!e\lIi'I"''''·1.i
Manual Start
operated. 2positicn
Electric Models &
cu 11l::C)1
SDlrmEJ-l()SCi6d contact added
to activate starter mechanism.
-7-

Check once, then turn driven
tum
Each 2 hours for first 6 check
tension of drive chain. is normal for
new drive chain to l""r,nH,,,,,,, or stretch).
Before be sure that vehicle
has been run so that true
will be en side
in"n"","'~
Afterthe first 2hours of ooeration
tinhtn",,,,,, of carburetor
end
"m",nr'h
OPERATION
FUEL TANK QU.AN1"ITY
Check that there is sufficient fuel the
tank for A habit to ac-
is the tank before
n""n.,,,,,,, and release brake lever several
to that
and returns to OFF
when released. Brake ShIDU!d
when lever is %, II (rnirumurn clearance)
from the handlebar

to its
etnrttno nenate to
choke
!:::n!~a~le choke .Choke is not nee-
8ngln,eis warmed
manual
5.
NOTE: Amanual starter is standard
eoutomern on ali snowmobiles.
any reason the vehicle cannot be
steneo
low or
2.
essary
Ski-Doo snowmobile is t1\..lUl!--;!J"'U
with amanual starter i "",r,,,; . ..ro'lftllr,rI
located on the
To start
1. Insert
to ON.
1. choke
necessary if
2. Test throttle
throttle
(A) shchtlv.
3. Insert and turn
clockwise engages.
4. Release throttle and return to 4. Disengage choke
ON has has started.
-9--
Wherever practical, shift
lever in NEUTRAL start-
engine. Note that brake
NOT operate with lever in NEU-
TRAL, so use caution and on
inclined surfaces.
For Models with electric starter:

for
snow, when
reatures. the
snow-
most f'/"'\,,.,frwt,,,,hl,,, oositicn
rests or footboards.
back on the seat and
rr rr u I,0-'" between seat
footboards.
will
kneelinq ooslticn adefinlte
ad-
\!",,'nt~,..,o Place one foot on the toot-
the side of the hili) the
knee on the
hill.
should be on the your
knee on the and vice-versa.
An alternate recommended kneelinc
sitlon and one that is trequentlv
is to both
one on each
<:In,,,,i,,,,,; the seat This oosition
should you encounter trailswhere
is mcomfortable
There are 3 main driving positions on
a
snowmobile - (1 Standing, (2) \Jillil ,'w.
and (3) Kneeling. presents roArt",in
advantages depending on the nature of
the terrain, the snow ccndltions,
of the the turns
nA,'<u"\n",1 nrfefArAriC:p, of
Driver confidence and are
to enjoyment your new
,;l!\'I-U'~IV snowmobile. For your first few
runs, select alarge clear flat area, then
nr;~('t,r.A the uses and of the
various controls and feel and
balance of your vehicle.
When using throttle
most press and release the
levers too quickly, causing a
corre-
sponding 'jerking' of the machine.
instead, squeeze the levers and
smoothly so acceleration and
are even.
When remember that snow-
mobiles have a flat track in con-
tinuous contact with ground, so that
the vehicle starts to slow
of its own accord as soon as the throttle
lever is released. For most
circum-
stances, this natural slOWing action plus
agentle pressure on the brake are more
than sufficient to stop the vehicle,
-10

of the owner, the twin
vehicle can be cambered.
the outer attachment of the
manoeuverability and
performance are correspon··
•A Tachometer; standard on al i
Valmont is as an
option for ali Models.
~ A
located under the is standard on
all Models. To access, remove
backrest, raise side of seat. Seat is
hir'I"l",rl aiong right remains open
when lifted. Tallliqht illuminates
~t('lrj:lrIP
compartment at night
at rear of is
On each side of the vehtcle,
note that there are already
holes, 13
/ 8" than to
which the outer ends of the cross shafts
are presently amxeo.
To add
I"AfTIhl:>r drilldrill. cap
the outer ends of the
cross shafts to new
reinstall.
NOTE: Once holes have been """""'11.
both oositions are intl:uc,harJgeabl'e
may at any time,
Saurfac:e -Ice or hard-
packed snow can be difficult to
tiate as both ski and tracks do not
much traction. Best advice is to slow
down and avoid rapid acceleration or
braking.
amCKTiP
Three good tips to follow to rrnrurmze
your chances of being stranded are (1)
stay on known trails and familiar terrain.
(2) travel with friends or in 1"'00,,,,,n,::In\!
with other snowmobiles, and do
regular lubrication maintenance
faithfully.
-_ ... Your new Skl-Doo
snowmobile is to
almost any snow surface,
or newly-fallen snow. Two
are however -- (1) don't over-
load your machine travel alone, not
with and (2) maintain a
speed at all times.
beyond the
with the surface under-
neath, and stop.
If your vehicle continues to make rea-
sonable headway, to
in acceleration, you are
",... ,",,,,.,,h to new areas. If
turn as wlde an arc as possible
look for firmer trails.
-11-

Ltd. and
From
comfort with a comolete line of cold
weather crotrunq. underwear to
these
been
to
garments
laboratory and
keep you warm, but also to
comfort and freedom of movement that
demands.
Ski-Doo
stocked local authorized
Ski-Doo dealers everywhere, you are
warmer winters when
wear certlfied Ski-Doo sportswear.
10 15 20 25 30 35
MilES PER HOUR
(wind velocity or snowmobile seeecn
rule to when
to wear, is to dress to the
, not the temperature.
Warm mitts and boots are
the three most important for
hands and lacking sufficient move~
ment as you are to
faster than other areas body.
Proper outfitting head to toe, how-
ever, is best of all - and Bombardier
Limited, the people who know snow-
mobiling best, have considered your
To hundreds of thousands of enthu-
Snowrnobilino has added an en-
tirely new dimension to winter. To truly
enjoy the there is one
item that is as indispensable as your
Ski-Doo snowmobile - warm clothing.
As the accompanying chart shows, even
moderate temperatures, when coupled
with vehicle speed or wind velocity,
produce a'chili factor' often as much
as 20 to 30 degrees below thermometer
-12-

•
•
•
•
•Strolnger Suslpenl;lon Springs
NEW TRACK DElS~GN
On "r~>lin',in<"\f examlnation
almost expect
in the directlon.
simplest technical ov,,',,"~"'_
tion is
track each instead of
digging away snow, compacts it, so
that the vehicle is propelled push-
against acompacted bank snow,
event of
this spring out sur-
face shocks and and particularly
effective on bumpy terrain. (See 5).
Note
too that rear tip of ski is contoured
to facilitate when vehicle is in
reverse.
Year after year, Bombardier continues
to be the World's seller of
mobiles and Snow-related equipment.
one of the many reasons
certainlv have to be our of
continuous and tmorovement
This year, for we have added
more new features in any other
year in our history, in addition to brand
new for the '70's. here are
a few many innovations that you
will enjoy on your new Ski-Doo snow-
mobile.
the ski around
hard steel mountino
feature of Bombardier
-13-

the vehicle
encounter an ,
f<n<)wlng what to do can make the
difference between becoming stranded
and returninq
Be extremetv careful when
children aGo more al\IWI'jf
check frequEmtiy. Small ~hiiidr'l'ln.
fin safer aSkHlloo,se
the seat of your sn~~w!mobil1a.
carry emergency materials and
Re,gister your :SKI~UOO snowmobile at
nearest where
01' laws and
affix Re'gis;traltio'n ~)iajte to rear of vehi-
cle. certificate
with you. of owner~
in the event the veillC!ie
becomes lost or stoien.
Public
your When
rnooue, secure
with a
; then check trailer
safety chain are secure and that
flashers and
parking lights are ail in
working order,
A!\lija~'s make a fuU then look
careruuv in both diw'ectiOi!S before
railroad tracks 01" roads.
When t~~~~~~'~ti~~n:r! or in a QPl)!J!!J.
have one the
across, ::>!lI~I,'1'
Insure your snowmobile againsl
Liability.
Use a hitch or tow-bar when
pulling any sled or trailer behind
Ski·Doo snowmobUe. hitl:he,$
prelVelrit tailgate collision when
d01wn!hili or 011 sudden
Before you start out, check to be sure
that you and each member of
are equipped with sutflclent
warm and helmets.
Use the Always travel
with at least one other snowmobile,
especially in unfamiliar terrain or on
trail rides. Even in snowmobiling, apair
beats one of a kind
if you are to new
areas, leave word your approximate
whereabouts and estimated time of
return with someone. a
snowmobile can often travel in
15 minutes than you can walk in iii
Show respect and courtesy to other
snowmobilers and to private property
at all times.
-14-