Yamaha DT 125R 1994 project

[jonne123]

The cylinder is going to shop. And price isnt that bad and prox quality has sometimes up and downs. And i suppose they are better because they are made with strong material and theyre forged. The ktm guys here use wössner pistons. And i know that i need to let the engine warm really well and also idle after ride.

[jonne123]

So the crankshaft bearing missed half of the needles. Also the main bearings had slack. So the engine wasnt rebuild recently as the owner said.

[Calum]

The big end bearing you mean?

People probably overlook that as it's not something you can easily do at home as the crank needs balancing afterwards!

Pity. The Yamaha Con Rod kids don't come with the shaft either, so if you've nackered up the eye then you'd be looking at getting another crank.

Was it salvageable do you know?

[jonne123]

I will buy connecting rod kit had bring them to local machine shop. They will put it together and balance.

[Calum]

@jonne123 What about the crank pin?

[jonne123]

https://www.moto-hame.fi/kiertokanki-yamaha-dt125rrex-tzr125-wssner-p-11810.html

[Calum]

@jonne123 Spot on!

There was some concerns a while back with Wossner rods being made in China.

But I've ran a few of them and not had any dramas.

[jonne123]

I figured if im going to rebuild the engine that i just put quality parts.