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I need your guys opinions...............
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[QUOTE="windowscleaning, post: 1260445, member: 83931"] Ok, I am in the process of rebuilding my 96 kx 125 bored 80 over(134cc) and I have somewhat of a problem. I have spoke to 4 different local shops in my area and they have all told me something different. When I removed the head/jug, I noticed on the top of the piston on the outside edges quite a few 1/4 - 1/2 " slashes, like something small, such as a pin was hitting against the piston everytime it compressed. It did not do any damage to the cylinder walls at all, only the head of the piston and a couple small marks on the cooling head. This is what I was told: 1. Your wrist pin bearing is going bad and the pins are starting to fall out which is causing the the pin(s) to enter the head of the piston whenever the piston is in it lowest position and then escaping through the exhaust ports. 2. Since there was a 1998 piston (# 719m05600) in a 1996 motor most likely the piston rings are sliding up around the piston and making the inditations. Can someone tell me what the difference between piston # 719m05600 and # 652m05600? 3. The last time the motor or top end was rebuilt, something was dropped down into the top end before it was closed up. Can someone please tell me if any of these explainations make any sense and if my piston is still useable or not? It has not started to eat away at the piston, it's just a few slash marks. If it is the wrist pin bearings, can they be changed or would I have to buy a entire new crank? What kind of other problems could have been caused by having a 1998 piston inside of a 1996 motor? Thanks in advance for any advise, Jason [/QUOTE]
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Dirt Bike Brands - Other
I need your guys opinions...............
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