Yamaha TDM850'99 4TX-AE3 User manual

FOREWORD
ThisSupplementaryServiceManualhasbeenpreparedtointroducenewserviceanddatafortheTDM850
’99.ForcompleteserviceinformationproceduresitisnecessarytousethisSupplementaryServiceManual
together with the following manual.
TDM850 ’96 SERVICE MANUAL: 4TX-AE1
TDM850 ’97 SUPPLEMENTARY SERVICE MANUAL: 4TX-AE2
TDM850 ’99
SUPPLEMENTARY
SERVICE MANUAL
1998 by Yamaha Motor Co., Ltd.
First Edition, November 1998
All rights reserved.
Any reproduction or unauthorized use
without the written permission of
Yamaha Motor Co., Ltd. is expressly
prohibited.

NOTE:
CAUTION:
EB001000
NOTICE
This manual was produced by the Yamaha Motor Company primarily for use by Yamaha dealers and their
qualified mechanics. It is not possible to include all the knowledge of a mechanic in one manual, so it is
assumedthatanyonewhousesthisbooktoperformmaintenanceandrepairsonYamahamotorcycleshas
a basic understanding of the mechanical ideas and the procedures of motorcycles repair. Repairs at-
tempted by anyone without this knowledge are likely to render the motorcycles unsafe and unfit for use.
Yamaha Motor Company, Ltd. is continually striving to improve all its models. Modifications and significant
changesinspecificationsorprocedureswillbeforwardedtoallauthorizedYamahadealersandwillappear
in future editions of this manual where applicable.
Designs and specifications are subject to change without notice.
IMPORTANT INFORMATION
Particularly important information is distinguished in this manual by the following notations.
The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY
IS INVOLVED!
FailuretofollowWARNINGinstructionscouldresultinsevere injury ordeathtothe
motorcycle operator, a bystander or a person inspecting or repairing the motor-
cycle.
A CAUTION indicates special precautions that must be taken to avoid damage to
the motorcycle.
NOTE: A NOTE provides key information to make procedures easier or clearer.

1
24
6
5
7
3
8
EB002000 HOW TO USE THIS MANUAL
MANUAL ORGANIZATION
This manual consists of chapters for the main categories of subjects. (See “Illustrated symbols”)
1st title 1 : This is the title of the chapter with its symbol in the upper right corner of each page.
2ndtitle 2 : This titleindicatesthesectionofthechapterandonlyappearsonthefirstpageofeachsection.
It is located in the upper left corner of the page.
3rd title 3 : This title indicates a sub-section that is followed by step-by-step procedures accompanied by
corresponding illustrations.
EXPLODED DIAGRAMS
Tohelp identifyparts andclarify procedure steps, there are exploded diagramsat thestart ofeach removal
and disassembly section.
1. An easy-to-see exploded diagram 4 is provided for removal and disassembly jobs.
2. Numbers 5 are given in the order of the jobs in the exploded diagram. A number that is enclosed by a
circle indicates a disassembly step.
3. Anexplanationofjobsandnotesispresentedinaneasy-to-readwaybytheuseofsymbolmarks 6 .The
meanings of the symbol marks are given on the next page.
4. A job instruction chart 7 accompanies the exploded diagram, providing the order of jobs, names of
parts, notes in jobs, etc.
5. Forjobsrequiringmoreinformation,the step-by-step formatsupplements 8 aregivenin additiontothe
exploded diagram and the job instruction chart.

22
1
3
5
7
9
2
4
8
6
24 25
2321
19 2018
16 1715
1413
11 12
10
GEN
INFO SPEC
ENG
CARB
ELECCHAS
COOL
INSP
ADJ
TRBL
SHTG
EB003000
ILLUSTRATED SYMBOLS
Illustrated symbols 1 to 9 are printed on top
rightofeachpageandindicatethesubjectofeach
chapter.
1General information
2Specifications
3Periodic inspection and adjustment
4Engine
5Cooling system
6Carburetion
7Chassis
8Electrical
9Troubleshooting
Illustrated symbols 10 to 17 are used to identify the
specifications appearing in the text.
10 Can be serviced with engine mounted
11 Filling fluid
12 Lubricant
13 Special tool
14 Torque
15 Wear limit, clearance
16 Engine speed
17 Ω, V, A
Illustrated symbols 18 to 23 in the exploded dia-
gramsindicatethe typesoflubricants andlubrica-
tion points.
18 Apply engine oil
19 Apply gear oil
20 Apply molybdenum disulfide oil
21 Apply wheel bearing grease
22 Apply lightweight lithium-soap base grease
23 Apply molybdenum disulfide grease
Illustrated symbols 24 to 25 in the exploded dia-
grams indicate where to apply a locking agent 24
and when to install new parts 25 .
24 Apply locking agent (LOCTITE)
25 replace

CONTENTS
GENERAL INFORMATION 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MOTORCYCLE IDENTIFICATION 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VEHICLE IDENTIFICATION NUMBER 1. . . . . . . . . . . . . . . . . . . . . . . .
MODEL LABEL 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIFICATIONS 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GENERAL SPECIFICATIONS 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MAINTENANCE SPECIFICATIONS 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHASSIS 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ELECTRICAL 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CABLE ROUTING 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PERIODIC INSPECTION AND ADJUSTMENT 13. . . . . . . . . . . . . . . . . . . . . . .
INTRODUCTION 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PERIODIC MAINTENANCE/LUBRICATION INTERVALS 13. . . . . . . . . . .
SEAT, TAIL COVER AND FUEL TANK 15. . . . . . . . . . . . . . . . . . . . . . . . . . .
SEAT, TAIL COVER AND FUEL TANK 15. . . . . . . . . . . . . . . . . . . . . . . .
ENGINE 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CARBURETOR SYNCHRONIZATION 16. . . . . . . . . . . . . . . . . . . . . . . .
ENGINE OIL LEVEL INSPECTION 18. . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE OIL REPLACEMENT 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL LINE INSPECTION 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CLUTCH 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CLUTCH 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLATION 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTRUMENT FUNCTIONS 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMBINATION METER 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SIGNAL SYSTEM 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CIRCUIT DIAGRAM 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SIGNAL SYSTEM CHECK 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL PUMP SYSTEM 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CIRCUIT DIAGRAM 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL PUMP CIRCUIT OPERATION 33. . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE FUEL PUMP 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TDM850 ’99WIRING DIAGRAM

–1–
MOTORCYCLE IDENTIFICATION GEN
INFO
EB100000
GENERAL INFORMATION
MOTORCYCLE IDENTIFICATION
VEHICLE IDENTIFICATION NUMBER
The vehicle identification number 1 is stamped
into the right side of the steering head.
MODEL LABEL
Themodel label 1 isaffixedto theframe. Thisin-
formation will be needed to order spare parts.

–2–
GENERAL SPECIFICATIONS SPEC
SPECIFICATIONS
GENERAL SPECIFICATIONS
Item Standard
Model: TDM850
Model code: 4TX4
Basic weight (With oil and full fuel tank): 232 kg
Carburetor:
Type/quantity
Manufacturer BDSR38/2
MIKUNI
Transmission
Primary reduction system
Primary reduction ratio
Secondary reduction system
Secondary reduction ratio
Transmission type
Operation
Gear ratio 1st
2nd
3rd
4th
5th
Spur gear
67/39 (1.718)
Chain drive
43/16 (2.688)
Constant mesh 5-speed
Left foot operation
37/14 (2.643)
37/19 (1.947)
30/20 (1.500)
27/23 (1.174)
27/28 (0.964)
Bulb wattage quantity
Meter light
Indicator lights
Neutral
Turn
High beam
Fuel
Water tempere
12V 2 W 3
14 V 1.4 W 1
14 V 1.4 W 2
14 V 1.4 W 1
12 V 2 W 1
14 V 1.4 W 1

–3–
MAINTENANCE SPECIFICATIONS SPEC
MAINTENANCE SPECIFICATIONS
ENGINE
Item Standard Limit
Clutch:
Clutch spring free length
Quantity 50 mm
648 mm

Carburetor:
I.D. mark
Main jet
Main air jet
Jet needle
Needle jet
Pilot air jet 1
Pilot air jet 2
Pilot outlet
Pilot jet
Bypass 1
Bypass 2
Bypass 3
Pilot screw
Valve seat size
Starter jet 1
Starter jet 2
Throttle valve size
Fuel level
Engine idle speed
Intake vacuum
4TX4 40
#147.5
#65
#1: 6DJP17 #2: 6CL1
P-O
#87.5
#120
1.0
#17.5
0.8
0.9
0.8
2.0
1.5
#32.5
0.9
#95
4.4 X5.4 mm
1050 X1250 r/min
36.0 X38.7 kPa (270 X290 mmHg)




















Fuel pump:
Type
Model/manufacturer
Output pressure
Electrical type
4TX/MITSUBISHI
7 kPa (0.07 kgf/cm2, 0.07 bar)



CHASSIS
Item Thread size Tightening
torque Remarks
Nm mkgf
Fuel sender and fuel tank
Fuel pump and bracket
Bracket and frame
M5
M6
M6
3.8
6.5
6.5
0.38
0.65
0.65

–4–
MAINTENANCE SPECIFICATIONS SPEC
ELECTRICAL
Item Standard Limit
Charging system:
Type
Model/manufacturer
Nominal output
Stator coil resistance
A.C. magneto
TLN252/DENSO
14 V 25 A at 5,000 r/min
0.23 X0.35 Ωat 20_C/W-W
SSS
SSS
SSS
SSS
Starter relay:
Model/manufacturer
Amperage rating
Coil winding resistance
MS5F-421/JIDECO
180 A
4.2 X4.6 Ωat 20_C
SSS
SSS
SSS
Fuel sender:
Model/manufacturer
resistance full
empty
4TX/NIPPON/SEIKI
4 X10Ω
90 X100Ω
SSS
SSS
SSS
Fuel pump relay:
Model/manufacturer
Coil winding resistance G8R-30Y-B/OMRON
225 Ω±10%
SSS
SSS
Hazard relay:
Model/manufacturer
Coil winding resistance 4KM-00/MATSUSHITA
72 X88 Ωat 20_C
SSS
SSS
Circuit breakers:
Type
Amperage for individual circuits
Main fuse
Headlight fuse
Signal system fuse
Ignition fuse
Fuse (position light and hazard)
Radiator fan fuse
Back up
Reserve fuse
Reserve fuse
Reserve fuse
Fuse
30 A 1
15 A 1
15 A 1
10 A 1
10 A 1
7.5 A 1
5 A 1
15 A 1
10 A 1
5 A 1
SSS
SSS
SSS
SSS
SSS
SSS
SSS
SSS
SSS
SSS
SSS

–5–
1Throttle cable 1
2Right handlebar switch lead
3Brake hose
4Clutch cable
5Main switch lead
6Left handlebar switch lead
7Horn lead
8Starter cable
9Speed sensor lead
10 Coolant reservoir hose
11 Headlight lead
12 Meter light lead
13 Thermo unit lead
14 Thermo switch lead
15 Fan motor lead
CABLE ROUTING SPEC
16 Ignition coil (left) lead
17 Ignition coil (right) lead
18 Negative lead
A Fasten the right handlebar switch
lead with a plastic band.
B Fasten the handlebar switch lead
with a plastic band.
C 50 mm
D Fasten the horn lead with a plastic
band.
E60mm
F Set the clamp within 10 mm from
the upper end of protector.
G Align the brake hose white mark to
the mark of bracket.
H Fastenthe brakehose withaplas-
tic band and cut the end of band.
I Pass the speed sensor lead be-
tween throttle cable and clutch
cableandfastentotheframehead
pipe.
J Pass the wireharness and hoses
under the frame.
K Fasten the coolant reservoir hose
with a plastic band.
CABLE ROUTING

–6–
CABLE ROUTING SPEC
L Fasten the meter lead and headlight lead with a plas-
tic band.
M Fasten the wireharness with a plastic band.
N Fasten the wireharness, right handlebar switch lead
meter lead and headlight lead with a plastic band.
O Connect the coupler and insert to the protector.
P Fasten the wireharness with a plastic band.
Q Fasten the wireharness and ignition coil (left) lead
with a plastic band.
R Fasten the wireharness right handlebar switch lead,
main switch lead fan motor lead with a plastic band.
S Set the ignition coil at the mark upward.
T Protector is under the coupler.

–7–
11 A.C. magneto lead
12 Air filter case breather hose
13 Carburetor heater hose
14 Starter cable 2
15 Thermo switch lead
16 Brake hose
17 Speed sensor lead
18 Wire harness
19 Flasher relay lead
20 Fuel pump lead
A Fasten the left handlebar switch
lead and main switch lead with a
plastic band.
B Routethe wireharness to the rear-
side of the frame pipe.
C Routethestartercablethroughra-
diatorhoseupwardandsparkplug
lead rear side and in front of air fil-
ter case breather hose. Route the
spark plug lead to the outside of
the carburetor starter bracket and
carburetor heater hose.
1Front flasher light (left) lead
2Main switch lead
3Starter cable 1
4Left handlebar switch lead
5Spark plug lead
6Carburetor breather hose
7Fuel hose
8Coolant reservoir hose
9Sidestand switch lead
10 Neutral switch lead
CABLE ROUTING SPEC

–8–
D Fasten the rear flasher light (left) lead.
E Fasten the sidestand switch lead neutral switch lead
and A.C. magneto lead.
F Route the sidestand switch lead and air filter case
breather hose to the inside of the engine cover.
G Fasten the sidestand switch lead to the air filter case
breather hose.
H Routetheairfiltercasebreatherhoseovertheidlead-
just bracket.
I Routetheairfiltercasebreatherhosetotheoutsideof
the carburetor heater hose and route the carburetor
heaterhosetotheinsideoftheairfiltercasebreather
hose.
J Clamp the speed sensor lead to the outer tube with a
holder.
K Clamp the speed sensor lead along the brake hose
(three position).
L Connect the coupler and insert the protector. Set the
protector between crosstube and fuel pump.
M Fasten the coolant reservoir hose, A.C. magneto
lead, neutral switch lead and sidestand switch lead.
CABLE ROUTING SPEC

–9–
1Battery negative lead
2Battery positive lead
3Starter motor lead
4Fuel sender lead
5Fuel tank drain hose
6Fuel tank breather hose (for DEU)
7Water hose
8Spark plug lead
9Clutch cable
10 Brake hose
11 Throttle cable
12 Right handlebar switch lead
13 Headlight lead
14 Meter light lead
15 Speed sensor lead
16 Carburetor heater hose
17 Vacuum hose (#1)
18 Vacuum hose (#2)
19 Coolant reservoir breather hose
20 Carburetor breather hose
21 Rear brake switch lead
22 CYCLELOCK lead
A Route the battery positive lead
and battery negative lead through
the clamp.
B Fasten the wireharness Coolant
breather hose and flasher relay
lead.
C Route the carburetor breather
hoses through the engine clamp.
D Fasten the carburetor air vent hose.
E Route the carburetor breather
hoses, vacuum hose (#1) down
ward and vacuum hose (#2) up-
ward through the guide.
F Route the vacuum hose (#1) inside,
vacuumhose(#2)outside through
the guide.
G Fastenthe coolantreservoirhose.
H Fasten the wireharness right han-
dlebar switch lead meter lead and
headlight lead with a clamp.
I Route the relay lead through the
outside of wireharness.
CABLE ROUTING SPEC

–10–
J Fasten the right handlebar switch lead and speed
sensor lead with a clamp.
K Fastenthethrottlecableandspeedsensorleadwitha
clamp.
L Route the coolant reservoir hose through the outside
of clutch cable.
M Fasten the wireharness, right handlebar switch lead,
meter lead and headlight lead with a clamp.
N Route the clutch cable through the guide of stay.
O Route the coolant reservoir breather hose, fuel tank
drain hose, carburetor breather hose through the guide.
P Routethe carburetorbreather hosesthrough theclamp.
Q Route the fuel tank drain hose, fuel tank breather
hose through the hole of the frame bracket.
R Route the coolant reservoir breather hose, fuel tank
breather hoseand fuel tankdrain hose through the guide.
S Route the brake switch lead through the guide.
T Fasten the wireharness, rear flasher lead with a clamp.
U Fasten the wireharness with a clamp.
V Fasten the coolant reservoir breather hose with a clamp.
W To the engine.
CABLE ROUTING SPEC

–11–
CABLE ROUTING SPEC
1Head light lead
2Wireharness
3Meter light lead
4Throttle cable
5Throttle stop screw cable
6Vacuum hose (#2)
7Vacuum hose (#1)
8Fuel tank breather hose
9Fuel hose
10 Carburetor air vent hose
11 Carburetor breather hose
12 Fuel tank drain hose
13 Fuel hose
14 Fuel sender lead
15 Starter motor lead
16 Battery positive lead
17 Battery negative lead
18 Coolant reservoir breather hose
19 Coolant reservoir hose
20 Fuel hose
21 Carburetor breather hose
22 Cylinder head breather hose
23 Air filter case breather hose
A Fasten the meter lead, headlight
lead wireharness with a clamp.
B Fasten the wireharness, coolant
reservoir hose with a clamp.
C Fasten the fuel hose with a clamp.
D Route the starter relay lead and
fuelsender lead through the guide
of bracket.
E Connectthecouplerandinsertthe
protector.
F Fasten the taillight lead to the tail-
lightbracketabovelefttaillightwith
a clamp and end of clamp is down-
ward.
G50mm

–12–
CABLE ROUTING SPEC
H Fasten the carburetor breather hose and see the
hose mark.
I Inorder tocarburetor breatherhose, idleadjustcable
coolant breather hose from downward.
J Routetheair filterdrainhosetooutside ofthrottleposi-
tion sensor lead.
K Fasten the wireharness with a clamp.
L To left flasher.
M Fasten the headlight lead with a clamp.
N To head light.
O To auxiliary light.
P To meter.
Q Fasten the meter lead, headlight lead with a clamp.
R Fasten the meter lead, headlight lead and right flash-
er lead connecter with a clamp.
S To right flasher.
T Fastenthemeterlead,headlightlead,relayassembly
lead and right flasher lead with a clamp.

–13–
INTRODUCTION/
PERIODIC MAINTENANCE/LUBRICATION INTERVALS INSP
ADJ
PERIODIC INSPECTION AND ADJUSTMENT
INTRODUCTION
This chapter includes all information necessary to perform recommended inspection and adjustments.
These preventive maintenance procedures, if followed, will ensure more reliable vehicle operation and a
longer service life. The need for costly overhaul work will be greatly reduced. This information applies to
vehiclesalreadyinserviceaswellasnewvehiclesthatarebeingpreparedforsale.All service technicians
should be familiar with this entire chapter.
PERIODIC MAINTENANCE/LUBRICATION INTERVALS
EVERY
NO. ITEM CHECKS AND MAINTENANCE JOBS INITIAL
(1,000 km) 6,000 km
or
6 months
(whichever
comes first)
12,000 km
or
12 months
(whichever
comes first)
1 * Fuel line Check fuel hoses for cracks or damage.
Replace if necessary. √ √
2 * Fuel filter Check condition.
Replace if necessary. √
3Spark plugs Check condition.
Clean, regap or replace if necessary. √ √ √
4 * Valves Check valve clearance.
Adjust if necessary. Every 42,000 km or 42 months (whichever comes first)
5Air filter Clean or replace if necessary. √ √
6 Clutch Check operation.
Adjust or replace cable. √√ √
7 * Front brake Check operation, fluid level and vehicle for fluid leakage.
Correct accordingly.
Replace brake pads if necessary. √√ √
8 * Rear brake Check operation, fluid level and vehicle for fluid leakage.
Correct accordingly.
Replace brake pads if necessary. √√ √
9 * Wheels Check balance, runout and for damage.
Rebalance or replace if necessary. √ √
10 * Tires
Check tread depth and for damage.
Replace if necessary.
Check air pressure.
Correct if necessary. √ √
11 *Wheel bearings Check bearing for looseness or damage.
Replace if necessary. √√
12 * Swingarm
Check swingram pivoting point for play.
Correct if necessary.
Lubricatewithmolybdenum disulfide greaseevery24,000 km
or 24 months (whichever comes first). √ √
13 Drive chain
Check chain slack.
Adjust if necessary. Make sure that the rear wheel is properly
aligned.
Clean and lubricate.
Every 500 km and after washing the
motorcycle or riding in the rain
14 *Steering bearings
Check bearing play and steering for roughness.
Correct accordingly.
Lubricate with lithium soap base grease every 24,000 km or
24 months (whichever comes first). √ √
15 * Chassis fasteners Make sure that all nuts, bolts and screws areproperly tight ened.
Tighten if necessary. √ √
16 Sidestand Check operation.
Lubricate and repair if necessary. √ √
17 * Sidestand switch Check operation.
Replace if necessary. √ √ √
18 * Front fork Check operation and for oil leakage.
Correct accordingly. √ √
19 * Rear shock absorber
assembly
Check operation and shock absorber for oil leakage.
Replace shock absorber assembly if necessary. √ √
20 * Rear shock absorber
assembly pivoting
points
Check operation.
Lubricate with molybdenum disulfide grease every 24,000 km
or 24 months (whichever comes first). √ √

–14–
PERIODIC MAINTENANCE/LUBRICATION INTERVALS INSP
ADJ
NOTE:
EVERY
NO. ITEM CHECKS AND MAINTENANCE JOBS INITIAL
(1,000 km) 6,000 km
6 months
(whichever
comes first)
12,000 km
12 months
(whichever
comes first)
21 * Carburetors
Check engine idling speed, synchronization and starter
oper ation.
Adjust if necessary. √ √ √
22 Engine oil
Check oil level and vehicle for oil leakage.
Correct if necessary.
Change. (Warm engine before draining.) √ √ √
23 Engine oil filter
element
Replace. √ √
24 *Cooling system
Check coolant level and vehicle for coolant leakage.
Correct if necessary.
Change coolant every 24,000 km or 24 months (whichever
comes first).
√ √
* Since these items require special tools, data and technical skills, they should be serviced by a Yamaha
dealer.
The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
Hydraulic brake system
When disassembling the master cylinder or caliper cylinder, always replace the brake fluid. Check the
brake fluid level regularly and fill as required.
Replace the oil seals on the inner parts of the master cylinder and caliper cylinder every two years.
Replace the brake hoses every four years or if cracked or damaged.