GENERAL INFORMATION
1-6
CYLINDER/PISTON SPECIFICATIONS
Unit: mm (in)
CLUTCH/GEARSHIFT LINKAGE/KICKSTARTER SPECIFICATIONS
Unit: mm (in)
ITEM STANDARD SERVICE LIMIT
Cylinder I.D. 57.300 – 57.310 (2.2559 – 2.2563) 57.40 (2.260)
Out-of-round – 0.10 (0.004)
Taper – 0.10 (0.004)
Warpage – 0.10 (0.004)
Piston,
piston pin,
piston ring
Piston O.D. at 10 (0.4) from bottom 57.280 – 57.295 (2.2551 – 2.2557) 57.20 (2.252)
Piston pin hole I.D. 14.002 – 14.008 (0.5513 – 0.5515) 14.04 (0.553)
Piston pin O.D. 13.994 – 14.000 (0.5509 – 0.5512) 13.96 (0.550)
Piston-to-piston pin clearance 0.002 – 0.014 (0.0001 – 0.0006) 0.04 (0.002)
Piston ring end gap Top 0.10 – 0.25 (0.004 – 0.010) 0.40 (0.016)
Second 0.10 – 0.25 (0.004 – 0.010) 0.40 (0.016)
Oil (side rail) 0.20 – 0.70 (0.008 – 0.028) 0.85 (0.033)
Piston ring-to-ring
groove clearance
Top 0.030 – 0.060 (0.0012 – 0.0024) 0.10 (0.004)
Second 0.030 – 0.060 (0.0012 – 0.0024) 0.10 (0.004)
Cylinder-to-piston clearance 0.005 – 0.030 (0.0002 – 0.0012) 0.09 (0.004)
Connecting rod small end I.D. 14.010 – 14.028 (0.5516 – 0.5523) 14.06 (0.554)
Connecting rod-to-piston pin clearance 0.010 – 0.034 (0.0004 – 0.0013) 0.10 (0.004)
ITEM STANDARD SERVICE LIMIT
Clutch lever free play 10 – 20 (0.4 – 0.8) –
Clutch Spring free length 40.5 (1.59) 39.6 (1.56)
Disc thickness 2.92 – 3.08 (0.115 – 0.121) 2.6 (0.10)
Plate warpage – 0.20 (0.008)
Clutch outer I.D. 23.000 – 23.021 (0.9055 – 0.9063) 23.08 (0.909)
Clutch outer guide O.D. 22.959 – 22.980 (0.9039 – 0.9047) 22.93 (0.903)
I.D. 16.991 – 17.009 (0.6689 – 0.6696) 17.04 (0.671)
Mainshaft O.D. at clutch outer guide 16.966 – 16.984 (0.6680 – 0.6687) 16.95 (0.667)
Kickstarter idle gear I.D. 20.500 – 20.521 (0.8071 – 0.8079) 20.58 (0.810)
Kickstarter idle gear guide O.D. 20.459 – 20.480 (0.8055 – 0.8063) 20.43 (0.804)
I.D. 17.000 – 17.018 (0.6693 – 0.6700) 17.04 (0.671)
Countershaft O.D. at Kickstarter idle gear guide 16.966 – 16.984 (0.6680 – 0.6687) 16.94 (0.667)
Kickstarter drive gear I.D. 16.016 – 16.034 (0.6305 – 0.6313) 16.06 (0.632)
Kickstarter spindle O.D. at kickstarter drive gear 15.966 – 15.984 (0.6286 – 0.6293) 15.94 (0.628)