G'day Harry,

That bore looks worn enough to at least need honing ,but it depends after the bore is honed and the piston is measured as well as measuring the bore wear then the maximum clearance should be no more than 11 thousandths of an inch to be suitable for new rings.

A new piston should not be used in an old bore.

OutdoorKing have a rebored engine for $80.https://www.outdoorking.com.au/clearance-items/victa-power-torque-rebore-err1352n

PowerTorque manual https://www.outdoorking-forum.com.a...del/Power%20Torque%20Engine%20Manual.pdf


As your 2 stroke mower engine was so low in compression I wouldn't spend time fixing it as a replacement mower is
cheap on FaceBook Marketplace ,Gumtree ,eBay

I've seen piston ring sets for around $15. online but depends how worn the engine is.

That 11 thou clearance sounds a lot from the manual as usually motors are about 2.5 to 5 thou maximum piston to
bore clearance

Cheers
Max.

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