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Hi Everyone I run a vintage sidecar rig using a xs650 motor. We blew up our #1 engine with the mikes 750 kit in it so are going to throw the #2 engine in for the next race. It had 2nd over mikes xs pistons in it and they have ovalled. I have looked for some forged pistons and in my search i came...

hi all we were putting my sidecar rig xs650 motor back together and noticed the adjusters dont sit exactly central on the valves, we know they have slight forward/reverse movement but they look offset to one side, we looked at anothe head and its not quite as extreme but still noticable, i have...