Did a crank rebuild for an engine job (KTM300) at work. Most times we just sell a complete assy, but in this case the custumer had the oem kit and the complete crank is $665 from KTM. Thought it might be fun to show the process, and I think this could apply to the saws if it was something that needed reworking or the builder wanted to change stroke, or even adapt a different piston (pin diameter).
So getting started, I use a square to scribe reference marks for reassembly. Also measure web width to achieve on reassembly. This i on the bearing surface.
Then we begin to press the two halves apart....
And we have the parts that make up the crank

So getting started, I use a square to scribe reference marks for reassembly. Also measure web width to achieve on reassembly. This i on the bearing surface.
Then we begin to press the two halves apart....


And we have the parts that make up the crank
