Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Piston Diameter

Piston Diameter:
Standard (New): 85.975-85.985 mm (3.3848-3.3852 inch)
Service Limit: 85.965 mm (3.3844 inch)

Oversize Piston Diameter
0.25: 86.225-86.235 mm (3.3947-3.3951 inch)
0.50: 86.475-86.475 mm (3.4045-3.4049 inch)