big-guy
03-04-2006, 01:53 PM
I know this is not the ideal place for this, but I know my fellow atvriders are some smart fellers.
2003 cr 125, stock except for pipe (and jetting). piston keeps seizing in the cyllinder, five times now, Most recently required a new sleeve. Plenty of oil, good water flow, jetting is fine. Runs great for a while after a new top end, but then just locks up. Plug chop shows good color, no signs of getting hot. It was wheelied into a fence post at one point, cracking the frame, that has been repaired and engine builder says bottom end is perfectly straight and centered, but I have to wonder.
Any ideas as to what the problem might be? Anything I can measure?
2003 cr 125, stock except for pipe (and jetting). piston keeps seizing in the cyllinder, five times now, Most recently required a new sleeve. Plenty of oil, good water flow, jetting is fine. Runs great for a while after a new top end, but then just locks up. Plug chop shows good color, no signs of getting hot. It was wheelied into a fence post at one point, cracking the frame, that has been repaired and engine builder says bottom end is perfectly straight and centered, but I have to wonder.
Any ideas as to what the problem might be? Anything I can measure?