r/EngineBuilding • u/Ok_Maintenance_9100 • 1d ago

Thinking a 1mm overbore to clean this up

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My gut says .5 would do it but I don’t wanna have to order a piston twice

8 Upvotes

75% Upvoted

6 comments sorted by

4

u/Sir_Maxelot 1d ago

Is there a question?

4

u/SudontDo 1d ago

Bore first, order piston later, what's the problem?

1

u/WyattCo06 1d ago

1mm overbore?

1

u/Ok_Maintenance_9100 1d ago

Yeah 65 to 66. Would just bore first order later, but ideally I’d want the bore matched exactly to the piston. Nice little 80s Honda trike motor.

3

u/sschelin 1d ago

Don’t need the pistons to bore. You want them before honing.