6
PERIODIC MAINTENANCE AND MINOR REPAIR
Tool kit................................................................... 6-1
Periodic maintenance and lubrication ................... 6-2
Cowling and panel removal and installation.......... 6-5
Cowlings A and B ................................................. 6-5
Panels A and B ..................................................... 6-6
Spark plugs........................................................... 6-6
Engine oil .............................................................. 6-8
Cooling system ................................................... 6-10
Changing the coolant .......................................... 6-11
Air filter ............................................................... 6-13
Carburetor adjustment ........................................ 6-15
Idle speed adjustment ........................................ 6-15
Throttle cable free play inspection ...................... 6-16
Valve clearance adjustment ................................ 6-16
Tires .................................................................... 6-17
Clutch lever free play adjustment........................ 6-19
Rear brake pedal height adjustment ................... 6-20
Brake light switch adjustment ............................. 6-21
Checking the front and rear brake pads.............. 6-21
Inspecting the brake fluid level............................ 6-22
Brake fluid replacement ...................................... 6-23Drive chain slack check ...................................... 6-23
Drive chain slack adjustment ............................. 6-23
Drive chain lubrication........................................ 6-24
Cable inspection and lubrication ........................ 6-24
Throttle cable and grip lubrication ...................... 6-25
Brake and shift pedal lubrication ........................ 6-25
Brake and clutch lever lubrication ...................... 6-25
Sidestand lubrication.......................................... 6-26
Rear suspension lubrication............................... 6-26
Front fork inspection ........................................... 6-27
Steering inspection ............................................ 6-27
Wheel bearings .................................................. 6-28
Battery................................................................ 6-28
Fuse replacement .............................................. 6-29
Headlight bulb replacement ............................... 6-30
Tail/brake light bulb replacement ........................ 6-31
Turn signal light bulb replacement...................... 6-32
Troubleshooting .................................................. 6-32
Troubleshooting chart ......................................... 6-33
Engine overheating ............................................ 6-34
E_4tx_PeriodicTOC.fm Page 1 Saturday, October 16, 1999 9:37 AM
PERIODIC MAINTENANCE AND MINOR REPAIR
6-3
6
12
*Swingarm• Check swingarm pivoting point for play.
• Correct if necessary.
• Lubricate with molybdenum disulfide grease every 24,000 km
or 24 months (whichever comes first).ÖÖ
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).ÖÖ
15*Chassis fasteners• Make sure that all nuts, bolts and screws are properly tightened.
• Tighten if necessary.ÖÖ
16 Sidestand• Check operation.
• Lubricate and repair if necessary.ÖÖ
17*Sidestand switch• Check operation.
• Replace if necessary.ÖÖÖ
18*Front fork• Check operation and for oil leakage.
• Correct accordingly.ÖÖ
19*Rear shock absorber
assembly• Check operation and shock absorber for oil leakage.
• Replace shock absorber assembly if necessary. ÖÖ
20*Rear shock absorber
assembly pivoting points• Check operation.
• Lubricate with molybdenum disulfide grease every 24,000 km
or 24 months (whichever comes first).ÖÖ
21*Carburetors• Check engine idling speed, synchronization and starter operation.
• Adjust if necessary.ÖÖÖ
22 Engine oil• Check oil level and vehicle for oil leakage.
• Correct if necessary.
• Change. (Warm engine before draining.)ÖÖÖ
23 Engine oil filter element
• Replace.ÖÖ NO. ITEM CHECKS AND MAINTENANCE JOBSINITIAL
(1,000 km)EVERY
6,000 km
or
6 months
(whichever
comes first)12,000 km
or
12 months
(whichever
comes first)
E_4tx_Periodic.fm Page 3 Saturday, October 16, 1999 9:37 AM
PERIODIC MAINTENANCE AND MINOR REPAIR
6-4
6
* Since these items require special tools, data and technical skills, they should be serviced by a Yamaha dealer.
EAU02970*
NOTE:@ l
The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
l
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.
@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).ÖÖ NO. ITEM CHECKS AND MAINTENANCE JOBSINITIAL
(1,000 km)EVERY
6,000 km
or
6 months
(whichever
comes first)12,000 km
or
12 months
(whichever
comes first)
E_4tx_Periodic.fm Page 4 Saturday, October 16, 1999 9:37 AM
PERIODIC MAINTENANCE AND MINOR REPAIR
6-8
6
EAU01692
Engine oilOil level inspection
1. Place the motorcycle on a level
place. Warm up the engine at idle
for 15 minutes.NOTE:@ Be sure the motorcycle is positioned
straight up when checking the oil level.
A slight tilt toward the side can result in
false readings. @
2. The oil tank is located behind the
engine cylinders. With the engine
stopped, check the oil level
through the level window located
on the right side of the oil tank.
3. The oil level should be between
the maximum and minimum
marks. If the level is low, fill engine
with sufficient oil to raise it to the
specified level.Engine oil and oil filter element re-
placement
1. Warm up the engine for a few min-
utes.
2. Stop the engine. Place an oil pan
under the engine and remove the
oil filler cap.
3. Remove the drain bolts and drain
the oil.
4. Remove the oil filter cover bolts
and oil filter.
1. Oil level window
2. Minimum level mark
3. Maximum level mark
1. Engine oil filler cap
1. Engine oil drain bolt a
E_4tx_Periodic.fm Page 8 Saturday, October 16, 1999 9:37 AM
PERIODIC MAINTENANCE AND MINOR REPAIR
6-9
65. Install the drain bolts and tighten
them to the specified torque.
6. Install the new oil filter, O-rings
and the filter cover. Tighten the oil
filter cover bolts to the specified
torque.
NOTE:@ Make sure the O-rings are seated prop-
erly. @7. Fill engine with oil. Install the oil fill-
er cap and tighten.
EC000066
CAUTION:@ l
Do not put in any chemical addi-
tives. Engine oil also lubricates
the clutch and additives could
cause clutch slippage.
l
Be sure no foreign material en-
ters the crankcase.
@
1. Engine oil drain bolt b
2. Oil filter cover bolt (´ 5)
3. Oil filter coverTightening torque:
Drain bolt
a:
35 Nm (3.5 m·kg)
Drain bolt
b:
30 Nm (3.0 m·kg)
1. Oil filter
2. O-ring (´ 2)
Tightening torque:
Oil filter cover bolt:
10 Nm (1.0 m·kg)
Recommended oil:
See page 8-1.
Oil quantity:
Total amount:
4.2 L
Periodic oil change:
3.5 L
With oil filter replacement:
3.6 L
E_4tx_Periodic.fm Page 9 Saturday, October 16, 1999 9:37 AM
8-1
8
EAU01038
8-SPECIFICATIONSSpecifications
Model TDM850
Dimensions
Overall length 2,165 mm
(for GB, NL, B, F, E, P, I, GR, D,
DK)
2,200 mm (for N, S, SF)
Overall width 790 mm
Overall height 1,285 mm
Seat height 805 mm
Wheelbase 1,475 mm
Ground clearance 165 mm
Minimum turning radius 2,900 mm
Basic weight (with oil and full
fuel tank)
232 kg
Engine
Engine type Liquid cooled 4-stroke, DOHC
Cylinder arrangement Forward inclined parallel
2-cylinder
Displacement 849 cm
3
Bore ´ Stroke 89.5 ´ 67.5 mm
Compression ratio 10.5:1
Starting system Electric starter
Lubrication system Dry sumpEngine oil
Ty p e
Recommended engine oil
classification API Service SE, SF, SG type or
higher
Quantity
Periodic oil change 3.5 L
With oil filter replacement 3.6 L
Total amount 4.2 L
Cooling system capacity
(total amount)
1.7 L
-20˚ -10˚ 0˚
10˚20˚ 30˚
40˚50˚C
SAE 10W/30
SAE 15W/40SAE 20W/40SAE 20W/50
SAE 10W/40
CAUTION:Be sure to use motor oils that do not contain anti-friction
modifiers. Passenger car motor oils (often labeled
“Energy Conserving”) contain anti-friction additives which
will cause clutch and/or starter clutch slippage, resulting in
reduced component life and poor engine performance.
E_4tx_Spec.fm Page 1 Saturday, October 16, 1999 9:38 AM
10-INDEXAAir filter .................................................. 6-13
Antitheft alarm (optional) ..........................3-5BBattery ................................................... 6-28
Brake and clutch lever lubrication........... 6-25
Brake and shift pedal lubrication ............ 6-25
Brake fluid replacement ......................... 6-23
Brake light switch adjustment ................. 6-21CCable inspection and lubrication ............ 6-24
Carburetor adjustment ........................... 6-15
Care.........................................................7-1
Changing the coolant ............................. 6-11
Checking the front and
rear brake pads ................................... 6-21
Clutch lever ..............................................3-8
Clutch lever free play adjustment ........... 6-19
Controls/Instruments ................................2-3
Coolant temperature indicator light...........3-2
Cooling system ...................................... 6-10
Cowling and panel removal and
installation .............................................6-5
Cowlings A and B ....................................6-5DDiagnosis device......................................3-5
Dimmer switch .........................................3-6
Drive chain lubrication ............................ 6-24
Drive chain slack adjustment.................. 6-23
Drive chain slack check.......................... 6-23
EEngine break-in ....................................... 5-5
Engine oil ................................................ 6-8
Engine overheating ................................. 6-34
Engine stop switch................................... 3-7FFront brake lever ..................................... 3-9
Front fork adjustment............................. 3-14
Front fork inspection .............................. 6-27
Fuel ....................................................... 3-11
Fuel gauge .............................................. 3-5
Fuel indicator light ................................... 3-3
Fuel tank breather hose
(for Germany only) .............................. 3-12
Fuel tank cap ......................................... 3-10
Fuse replacement.................................. 6-29GGive safety the right of way ..................... 1-1HHandlebar switches ................................. 3-6
Dimmer switch ................................... 3-6
Engine stop switch ............................. 3-7
Hazard switch .................................... 3-6
Horn switch ........................................ 3-6
Lights switch ...................................... 3-7
Pass switch ........................................ 3-6
Start switch ........................................ 3-7
Turn signal switch .............................. 3-6
Hazard switch .......................................... 3-6
Headlight bulb replacement ................... 6-30
Helmet holder ........................................ 3-13
High beam indicator light ..........................3-2
Horn switch ..............................................3-6IIdentification number records ...................9-1
Idle speed adjustment ............................6-15
Indicator lights ..........................................3-2
Coolant temperature indicator light .....3-2
Fuel indicator light...............................3-3
High beam indicator light ....................3-2
Neutral indicator light ..........................3-2
Turn indicator lights ............................3-2
Inspecting the brake fluid level ...............6-22KKey identification number .........................9-1LLeft view...................................................2-1
Lights switch ............................................3-7
Luggage strap holders ...........................3-17MMain switch/steering lock .........................3-1
Model label ..............................................9-2NNeutral indicator light ...............................3-2PPanels A and B ........................................6-6
Parking.....................................................5-6
Pass switch ..............................................3-6
Periodic maintenance and lubrication .......6-2
Pre-operation check list ............................4-1
E_4txIX.fm Page 1 Saturday, October 16, 1999 9:38 AM