2. GENERAL INFORMATION STRYKER 125/150 SERVICE INFORMATION ENGINE Standard (mm) Service Limit (mm) Item 125cc 150cc 125cc 150cc Cylinder head warpage Piston O.D.(5mm from bottom of piston skirt) 56.4556.48 61.9761.99 56.30 61.81 Cylinder-to- piston clearance 0.010.35 0.010.35 0.35 0.35 Piston pin hole I.D. 15.00215.008 15.00215.008 15.06 15.06 Piston pin O.D. 14.99415 14.99415 14.90 14.90 Piston-to-piston pin clearance 0.0050.014 0.0050.014 0.10 0.10 Piston ring end gap (top/second) 0.100.25 0.100.25 0.5 0.5 Connecting rod small end I.D. 15.01015.028 15.01015.028 15.09 15.09 Cylinder bore 56.556.51 62.062.01 56.70 62.20 Connecting rod big end side clearance Connecting rod big end radial clearance Crankshaft runout A/B CARBURETOR 125cc 150cc Venturi dia. 24.5 mm 26.5 mm Identification number CVK009 B CVK025 A Float level 18 mm 17 mm Main jet #108 #108 Slow jet #35 #35 Pilot screw opening 1 1 Idle speed 1600 rpm 1600 rpm Throttle grip free play 26mm 26mm Jet needle clip notch 2-10