[rmiller0903]

I am in the middle of rebuilding my top end and got to the piston. Im not sure how i havent seen something or heard anything on this. Is there any way to remove the piston from the connecting rod without using the yamaha piston removal tool?

 

[camorhino88]

Yes if you have takin the Circlip out on one side of the piston push the wrist pin out from the other, (Note) Place a rag around the rod and under the piston to insure you don't drop anything into the crank cases.. Hope this Helps.. ALSO if you go to the forums tab the to the How to tab then midway down the page is the 660 repair manual .. Down load is free IT will help alot..

 

[rmiller0903]

I have taken both circlips out. the wristpin seems extremely tight on the rod. i dont want to damage the rod trying to push the pin out

 

[dbestduner]

that means the wrist pin got hot and scoured

try to heat it up with a torch and pound it out with a hammer