Maintenance Specifications; Engine - Yamaha YFM660FWA Supplementary Service Manual

MAINTENANCE SPECIFICATIONS

ENGINE

Carburetor:
I. D. mark
Main jet
Main air jet
Jet needle
Needle jet
Pilot air jet
Pilot air jet
Pilot outlet
Pilot jet
Pilot screw
Bypass 1
Bypass 2
Bypass 3
Valve seat size
Starter jet
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)
(P .S)
(B.P .1)
(B.P .2)
(B.P .3)
(V.S)
(G.S.1)
(G.S.2)
(Th.V)
(F.H)
(F.L)
Standard
5KMA 10
#153.8
#70
6JPH9-53-2
O-0M
#60
1.5
1.1
#40
3 turns out
0.8
0.8
0.8
3.0
#55
0.8
#105
13 mm (0.51 in)
4.5 mm (0.18 in)
1,450 ~ 1,550 r/min
30.7 ~ 33.3 kPa
(230 ~ 250 mmHg, 9.07 ~ 9.83 inHg)
– 4 –
SPEC
Limit
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