OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions On Victa Two Stroke Engines Model 5 victa Oversize piston HELP

Ok so a STD bore is 2.125 or a shade under 54mm 53.975. So If we add .020 or 0.5mm X3 we should come out with...1.5mm or 60thou. So that comes to approx 55.50mm. Which I reakon is close enough to your 55.36 +60...As +40 would be approx 55.00mm and + 80 would be 56.00mm ...Just recheck it lols...I have been known to be wrong! (About a lot of things)!!!! hahaha