Yamaha TDM850 1996 User Manual

4-65
TRANSMISSION, SHIFT CAM AND SHIFT FORK
ENG
WARNING
INSPECTION
1. Inspect:
 Shift fork cam follower
1
 Shift fork pawl
2
Scoring/Bends/Wear/Damage  Replace.
2. Inspect:
 Guide bar
Roll the guide bar on a flat surface.
Bends  Replace.
Do not attempt to straighten a bent guide bar.
3. Check:
 Shift fork movement
(on its guide bar)
Unsmooth operation  Replace the fork and
guide bar.
4. Inspect:
 Shift cam grooves
Wear/Damage/Scratches  Replace.
 Shift cam segment
1
Damage/Wear  Replace.
 Shift cam bearing
2
Pitting/Damage  Replace.
5. Measure:
 Axle runout (main and drive)
Use a centering device and dial gauge
1.
Out of specification  Replace.
Runout limit:
0.08 mm

Yamaha TDM850 1996 Specifications

General

Displacement	849 cc
Bore x Stroke	89.5 mm x 67.5 mm
Compression Ratio	10.5:1
Fuel System	Carburetor
Transmission	5-speed
Final Drive	Chain
Front Suspension	Telescopic fork
Rear Suspension	Monoshock
Front Brakes	Dual disc
Rear Brakes	Single disc
Rear Tire	150/70-17
Fuel Capacity	20 liters
Seat Height	825 mm
Width	800 mm
Engine Type	4-stroke, parallel-twin
Ignition	Digital