Motor Top End Specifications

 

  H1, KH500
  Standard Service Limit
Bore Diameter 60.0-60.019mm
2.3622-2.3629in.		 60.15mm
2.3681in.
Bore Taper and out-of-round. (Max) 0.05mm
0.002in.		  
Piston Skirt Diameter
(5mm from bottom of skirt at right angle to piston pin		 59.975mm
2.36122in.		  
Piston-to-Cylinder Clearance 0.066mm
0.0026in.		 0.004mm
0.0002in.
Top Piston Ring-to-groove Clearance 0.09-0.13mm
0.0035-0.0051in.		 0.17mm
0.0067in.
Bottom Piston Ring-to-groove Clearance 0.05-0.09mm
0.0020-0.0035in.		 0.12mm
0.0047in.
  Thickness Width
Top Piston Ring Dimensions 1.47-1.49mm
0.0579-0.0595in.		 2.4-2.6mm
0.0944-0.1024in.
Bottom Piston Ring Dimensions 1.47-1.49mm
0.0579-0.0595in.		 1.8-2.0mm
0.0708-0.0788in.
  Height Depth
Top Piston Ring Groove Dimensions 1.58-1.60mm
0.0622-0.0630in.		 2.6-2.8mm
0.1024-0.1102in.
Bottom Piston Ring Groove Dimensions 1.54-1.56mm
0.0607-0.0615in.		 2.6-2.8mm
0.1024-0.1102in.
  Standard Service Limit
Top Ring End Gap 0.2-0.3mm
0.008-0.012in.		 0.8mm
0.031in.
Bottom Ring End Gap 0.2-0.3mm
0.008-0.012in.		 0.8mm
0.031in.
Top Ring Free End Gap 7.0mm
0.276in.		  
Bottom Ring Free End Gap 9.5mm
0.374in.		  
Wrist Pin Bearing Radial Clearance 0.003-0.022mm
0.00012-0.00088in.		 0.10mm
0.0039in.
Connecting Rod Side Clearance 0.40-0.50mm
0.0157-0.0197in.		 0.70mm
0.0276in.
Connecting Rod Radial Clearance 0.025-0.035mm
0.00098-0.00138in.		 0.10mm
0.0039in.
Crankshaft Runout Less than 0.04mm
0.0016in.		 0.10mm
0.0039in.