Maintenance Specifications; Engine; Chassis - Yamaha YP250D 98 Supplementary Service Manual

MAINTENANCE SPECIFICATIONS

ENGINE

Item
Automatic centrifugal clutch:
Clutch shoe thickness
Clutch housing inside diameter
Clutch shoe spring free length
Weight outside diameter
Clutch - in revolution
Clutch - stall revolution
Carburetor:
Type
I.D. mark
Ventuly outside diameter
Main jet
Main air jet
Jet needle
Throttle valve size
Pilot air jet
Needle jet
Pilot outlet
Pilot jet
Bypass
Pilot screw
Valve seat size
Starter jet 1
Starter jet 2
Float height
Engine idle speed
Intake vacuum
Oil temperature
Cooling water temperature

CHASSIS

Item
Front suspension:
Front fork travel
Fork spring free length
Spring rate
Stroke
Oil capacity
Oil level
Oil grade
Inner tube vend limit
MAINTENANCE SPECIFICATIONS
Standard
3.0 mm
135 mm
28.1 mm
20 mm
2,250 X 2,850 r/min
3,700 X 4,700 r/min
Y28V-1A
4UC 02 [4UD 00 (CH)]
ø28
(M.J) #130
(M.A.J) ø0.9
(J.N) 5D32-3/5
(Th.V) 11_
(P.A.J.1) ø1.2
(N.J) #85
(P.O) ø0.8
(P.J) #44
(B.P) 0.7 3
(P.S) 1 7/8 [1 5/8 (CH)]
(V.S) 1.4
(G.S.1) ø0.45 [ø0.47 (CH)]
(G.S.2) ø0.5
(F.H) 27 mm
1,350 X 1,450 r/min
220 X 260 mmHg
65 X 75_C
80_C
Standard
100 mm
268.5 mm
(K1) 5.7 N/mm (0.57 kg/mm)
0 X 100 mm
(K1)
0.142 L (142 cm
80 mm
Fork oil 15 WT or equivalent
SSS
3
)
2
SPEC
Limit
2.0 mm
135.5 mm
SSS
19.5 mm
SSS
SSS
SSS
SSS
SSS
SSS
SSS
SSS
SSS
SSS
SSS
SSS
SSS
SSS
SSS
SSS
SSS
SSS
SSS
SSS
SSS
SSS
Limit
SSS
263.5 mm
SSS
SSS
SSS
SSS
SSS
0.2 mm