Yamaha TDM850 1996 User Manual

4-43
OIL PUMP
ENG
INSPECTION
1. Inspect:
 Oil pump driven gears
Wear/Cracks/Damage  Replace.
2. Measure:
 Tip clearance
a
(between the inner rotor
1 and the outer rotor
2)
 Side clearance
b
(between the outer rotor
2 and the pump
housing
3)
(between the inner rotor
1 /outer rotor 2 and
the pump housing
3)
 Side clearance
c
Out of specification  Replace the oil pump as-
sembly.
Tip clearance
a
:
0  0.12 mm
Side clearance
b :
0.03  0.08 mm
Side clearance
c
:
0.03  0.08 mm
3. Check:
 Oil pump operation
Unsmooth  Repeat steps 1 and 2 or replace
defective parts.

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