Yamaha YFM660FS, Supplementary Service Manual

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SPEC
MAINTENANCE SPECIFICATIONS
MAINTENANCE SPECIFICATIONS
ENGINE
Item Standard Limit
Cylinder head:
Warp limit ---- 0.03 mm
(0.0012 in)
Cylinder:
Bore size 100.005 ~ 100.055 mm
(3.9372 ~ 3.9392 in) 100.1 mm
(3.94 in)
Measuring point 50 mm (1.97 in) ----
Camshaft:
Drive method Chain drive (Left) ----
Cam dimensions
Intake “A” 35.69 ~ 35.79 mm
(1.4051 ~ 1.4091 in) 35.59 mm
(1.4012 in)
“B” 30.06 ~ 30.16 mm
(1.1835 ~ 1.1874 in) 29.96 mm
(1.1795 in)
“C” 5.53 ~ 5.73 mm
(0.2177 ~ 0.2256 in) ----
Exhaust “A” 36.5 ~ 36.6 mm
(1.4370 ~ 1.4409 in) 36.4 mm
(1.4331 in)
“B” 30.11 ~ 30.21 mm
(1.1854 ~ 1.1894 in) 30.01 mm
(1.1815 in)
“C” 6.29 ~ 6.49 mm
(0.2476 ~ 0.2555 in) ----
Camshaft runout limit ---- 0.03 mm
(0.0012 in)
*
C
A
B