Piston Break-in?

[wallasaki]

New piston in cylinder - my first top end. Any advice for that first start. Thanks.

 

[Braahp]

Ride it easy 15 minutes....cool down 15 minutes......ride easy again 15 minutes.......cool down again 15 minutes.................ride with varying throttle levels another 30 minutes...........cool down again.........ride a little more aggressive but never wide open or real high rpm 45-1 hour.................cool down completely again. Take it easy that first day. The cool down is as important as the warming up.

 

[wallasaki]

Thanks Braahp.

 

[Mac]

Just to add to what Braahp said.

After the initial break-in you should check and retorque the head and cylinder bolts then give it an oil change (if its a 4stroke).