"I've repaired a few with the same damage Myles,
If you're going to do a full rebuild on the engine the crank will be rebuilt and re-aligned so vibration gone, I'm yet to see one that has actually damaged the…"
The Piston skirt length is approximately 1.5mm shorter than the old pistons however the pin to crown height is very similar in both.
I have used later pistons in a Class Australia engine, lifted the cylinder and machined the deck to…"
Surely you don't think it necessary for a manufacturer to do as you suggest, obviously what you suggest would then create an issue with squish clearance which is a tech item, Going from 48.20 to .50 makes about .11 difference in…"
"KA Junior is a listed class for Nationals on KA website, Rule book states in Chapter 10, Iame engine to have 19mm restrictor, KT100S No restrictor, I thought Iame engine was to be restricted in National form not against a KT100S…"
I'm pretty sure your model Tonykart arrived in the country in 1979 as I believe it to be the same model Ross Gray won the Vic Open in Jan 1980 in 80 Gearbox, Ross and also Russell Caddy won Australian 80cc Road Race Champs with this…"