I know it is not a sportbike, but nonetheless it is my bike and 2 weekends ago I blew up the bottom end during a race.
I need to split the cases and replace the crank. I will also replace the piston and rings while I have it all apart.
Here is my progress so far of taking off the top end.
Head (needs to be cleaned up)
Engine
Cylinder & top of piston
Power valve actuating arm
Cylinder - doesn't look bad at all!
Another cylinder shot.
This weekend I will split the cases so stay tuned for more..
oh yeah wish me luck