Ok. What about doing it backwards??? Finding the end compression and working it back to what size piston etc I would need??
you need to get your cr as the engine is and then work out what you want it to be and see how much volume you need to get rid of. how come you want to up the cr anyway?
Well I know u can get a bit of power from high compression pistons. I was looking into how it was done as I want to be able to do shit my self sick of garages. And best way to learn is to do.
Back to original post like I can get the exact same valve same part no same diagram no but half the price from kwak buy getting one from an older bike.... They have just used the same size valves
Ok so today decided to prep bike so took off all wires etc then had a quick look inside at valves carnt see much. So decided to align crank so off come case and out fell this.... Know I'm trying to not get too excited how easy this fix will be but it's looking good
Anyone know how to remove a fooked engine mount bolt?? I know u have to remove the castle nut but the clamp style bolt itself has been rounded off you have to use an Allan key to remove bolt but someone has fooked it
For the allen bolt, tap in a torx bit that is a bit bigger and gently turn. That's some nice bits of metal that fell out, don't expect this to be cheap to rebuild until you have it all stripped. Cam chain teeth and a chunk of engine casing are not good signs, bent valves and possibly a broken camshaft could be on the cards. Not to mention any damage done to the guides and mounting points, tensioner, crank gear.......
@bloke do you think going from 12.8.1 to 13.5.1 cr is to much?? The pistons are a strait fit from wiseco and are for my bike to go from 636 to 674. It won't be a road bike she will be a track slag
