Maintenance & Technical > KX500 Original
Siezed?
littlewing78:
I went out for a little ride today and broke my toy. I had been riding for about two hours and was on my way out of the hills. I was just coasting along and then tried to climb one last little hill. For some reason this time It took a lot of throttle to get any speed. I turned around and went back down. The problem kept getting worse and worse as I tried to get back to the road. I was able to put it in first gear and let off the clutch and the bike would just sit there like it was in neutral. At very high revs and me nearly sitting on the gas tank I was able to get it moving. When I decided to shut it down it seemed to sieze up. The kick starter wont budge. This all happened in about five minutes from when I noticed something was odd.
Any ideas what I have done? I haven't started to tear it apart yet. Just now started to drain the oil. Where should I start looking?
cbxracer30:
oil was a good start. Anything in the oil ? like pieces of clutch plate , metal flakes. Does it smell burnt? If your lucky you broke a clutch plate and a piece of plate is lodged in the big gear on the back of the basket.This sounds like a clutch problem to me Does it have anti-freeze in it ? check the little things first.CBX
littlewing78:
Coolant was fine. Oil looked like normal. Milky because I need a need water seal. Didn't see any metal pieces in the oil. But when I took off the silencer a small chunk of metal fell out. Looks like possibly part of the ring (@#$%). Time to keep digging.
cbxracer30:
Im thinking that looks a little to wide & thick to be ring . If it idled the last time you got it started I'm still thinking clutch but I've been known to be wrong.CBX
littlewing78:
I took of the clutch cover and rotated the basket by hand and metal chunks started coming out of the exhaust port.
So I drained the coolant and took of the head. Looks like a new piston is in order.
The sleeve feels smooth to the touch and I don't seen and significant gouges. Need to tear it down more now. Now I am thinking that my ring went bad and that's why I lost all power. Then me being an idiot kept running it until the ring unseated itself. Maybe.
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