Maintenance Specifications; Engine - Yamaha YFM250XN 2001 Supplementary Service Manual

MAINTENANCE SPECIFICATIONS

ENGINE

Shifter:
Shifter type
Guide bar bending limit
Carburetor:
I. D. mark
Main jet
Main air jet
Jet needle
Needle jet
Pilot air jet
Pilot air jet
Pilot outlet
Pilot jet
Bypass 1
Bypass 2
Bypass 3
Pilot screw
Valve seat size
Starter jet
Throttle valve size
Float height
Fuel level
Engine idle speed
Intake vacuum
MAINTENANCE SPECIFICATIONS
Item
(M.J)
(M.A.J)
(J.N)
(N.J)
(P.A.J.1)
(P.A.J.2)
(P.O)
(P.J)
(B.P.1)
(B.P.2)
(B.P.3)
(P.S)
(V.S)
(G.S.1)
(G.S.2)
(Th.V)
(F.H)
(F.L)
Standard
Shift drum and guide bar
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4XEC 22
#95
0.7
5CE35-2
P-2M (#823)
#80
1.3
0.85
#42.5
0.8
0.8
0.8
2.0 turns out
2.0
#50
0.7
#130
12.0 ~ 14.0mm (0.47 ~ 0.55 in)
1.0 ~ 2.0 mm (0.04 ~ 0.08 in)
1,400 ~ 1,500 r/min
30.7 kPa (230 mmHg, 9.06 inHg)
– 3 –
SPEC
Limit
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0.8 mm
(0.032 in)
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