CFMoto CF500 - Page 131

13．Engine Overhaul Information
Cylinder + Piston + Piston Ring + Connecting Rod
Item Standard Service Limit Remark
Cylinder Pressure 1000KPa ------------
Cylinder-Piston Clearance 0.030-0.051 0.15
Piston Skirt Diameter 87.460-87.480
(10mm form skirt end)
87.380
Inner Diameter of Cylinder 87.500-87.522 ------------
Cylinder Joint Face Distortion 0.015 0.05
Top
Ring
R About 11.7 8.9
Piston Ring Free Gap
2
ND
Ring
R About 12 9.5
Top Ring 0.15-0.30 0.60 Piston Ring Gap In Bore
2
ND
Ring 0.15-0.30 0.60
Top Ring 0.04-0.08 0.180 Piston Ring Groove
Clearance
2
ND
Ring 0.03-0.07 0.150
Top Ring 0.97-0.99 -------------
Piston Ring Thickness
2
ND
Ring 1.17-1.19 -------------
Top Ring 1.03-1.05 -------------
2
ND
Ring 1.22-1.24 -------------
Piston Ring Groove Width
Oil Ring 2.51-2.53
Inner Diameter of Piston Pin
Hole
23.002-23.008 23.030
Outer Diameter of Piston Pin 22.995-23.000 22.980
Inner Diameter of Connecting
Rod Small End
23.006-23.014 23.040
Clearance of Connecting Rod
Big End
0.10-0.55 1.0
Thickness of Connecting Rod
Big End
24.95-25.00
Crankshaft Play 0.03 0.08
Lubrication
Item Standard Service Limit Remark
Clearance between Inner
and Outer Rotors
0.03mm-0.10mm 0.15mm
Clearance between Outer
Rotor and Oil Pump Body
0.03mm-0.10mm 0.12mm
Oil Pressure 130Kpa-170Kpa ( 3000r/min) ---------
Oil Type SAE10W-40, API SF or SG ---------
When changing 1900ml ----------
When Replacing
Filter
2000ml ----------
Oil Capacity
Engine Repair 2200ml ---------
13-7