[QUOTE=YamahaSpecial;3454149]No luck at all, from what i can see the piston moves side to side a little from where i took the clips off to remove the piston pin, but when im looking from below i can see that the piston is moving and not the actual pin, this means its jammed onto the rod end itself. I tried heating it the rod yesterday and it still did not move, i also tried a g clamp, and it ended up snapping the g clamp in half.
What shall i do?
the E-Z thing, i dont have that tool[/QUOTE
A "EZ Out" is a tool that removed something that is striped with a existing or drilled hole, it has sharp corners, teeth or spiral edges to bight into and remove or turn a stuck bolt, or in this case a wrist pin. That's a brand name in the US, you may have something similar over there.
BUT, that's not the worst. Early on, I tried to impress on the importance of the crank being good. Now with the wrist pin being stuck in the top of the rod there is a good chance the rod is bad. My only idea now is to get some quality drill bits, like "Cobalt" and try to drill the center of the pin till it's thin enough or breaks free to be removed, but not damage the rod. You might have to use some rotary burs to grind away the piston. Be sure the crankcase is well covered, maybe even taped to keep chips out.
Striped threads can be repaired with "heli coil" or "time-sert, a oversize threaded insert that restores the correct size. If the bad threads are on the bottom or side by side they could allow some leakage in or out. But, first, take something thin, like a pipe cleaner, knitting needle, or thin wire and find out how deep the holes are, then get longer screws for each. There may be good threads deeper in.
I would hold off on everything until you get the wrist pin out and inspect the rod.
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