Piston 39MM (B) Athena Zundapp

Is the piston supplied complete?

Yes, the piston is supplied complete with;

• - Piston ring ( piston rings if the piston is a dual ring type )
• - Piston pin
• - Piston pin clips

Supplied as shown in the photo.

Please pay attention to the following points during installation to prevent damage and ensure a long service life.

• If the piston is supplied with beveled piston rings, they must be installed in the correct direction
• If an oil ring is present, it may be installed in the lower piston ring groove
• Always lubricate the piston well with oil during installation
• Always check the correct ring end gap
• Also check the condition of the piston pin needle bearing
• For the longest possible service life, we recommend running in the piston carefully during the first approximately 200 kilometers
• If the piston has an arrow marking, it must point towards the exhaust port
• If the piston is marked with IN, this side must be installed towards the intake side