Honda Workshop Service and Repair Manuals

Piston: Specifications

DIMENSIONS

Clearance:

Standard (New) ...............................................................................................................................................  0.004-0.027 mm (0.0002-0.0011 inch)
Service Limit .............................................................................................................................................................................  0.04 mm (0.002 inch)

Groove Width

Top:

Standard (New) .........................................................................................................................................  1.240-1.255 mm (0.0488-0.0494 inch)
Service Limit ...................................................................................................................................................................  1.275 mm (0.0502 inch)

Second:

Standard (New) .........................................................................................................................................  1.230-1.245 mm (0.0484-0.0490 inch)
Service Limit ...................................................................................................................................................................  1.265 mm (0.0498 inch)

Oil:

Standard (New) .........................................................................................................................................  2.805-2.825 mm (0.1104-0.1112 inch)
Service Limit .......................................................................................................................................................................  2.85 mm (0.112 inch)

Skirt Outer Diameter [1]

No Letter:

Standard (New) .....................................................................................................................................  86.993-87.006 mm (3.4249-3.4254 inch)
Service Limit .................................................................................................................................................................  86.980 mm (3.4244 inch)

Letter B:

Standard (New) .....................................................................................................................................  86.983-86.996 mm (3.4245-3.4250 inch)
Service Limit .................................................................................................................................................................  86.970 mm (3.4240 inch)

[1] At 15 mm (0.6 inch) from bottom of skirt.