Standard (mm) Service Limit (mm)
Item SC10AS SC10AS
Cylinder head warpage 0.10
Piston O.D.(5mm from bottom of piston skirt) 38.955 38.970 38.90
Cylinder-to- piston clearance 0.10
Piston pin hole I.D. 12.002 12.008 12.03
Piston pin O.D. 11.994 12.0 11.98
Piston-to-piston pin clearance ← ←
Piston ring end gap (top/second) 0.10 0.25 0.40
Connecting rod small end I.D. 17.005 17.017 17.03
Cylinder bore 39.039.025 39.05
Drive belt width 18 17
Drive pulley collar O.D. 20.01 20.025 ←
Movable drive face ID. 20.035 20.085 19.97
Weight roller O.D. 13.0 12.4
Clutch outer I.D. 107 107.2 107.5
Driven face spring free length 87.9 82.6
Driven face O.D. ← ←
Movable driven face I.D. ← ←
Connecting rod big end side clearance ← ←
Connecting rod big end radial clearance ← ←
Crankshaft runout A/B ←
CARBURETOR
SC10AS
Venturi dia. 14mm
Identification number 014A
Float level 5.0mm
Main jet #80
Slow jet #35
Air screw opening 1 ±¼
Idle speed 2100±100rpm
Throttle grip free play 2 6mm
Jet needle clip notch 1st notch