Maintenance & Technical > KX500 Original
500 Power
bandit88:
Think I found the issue. Was looking at the power valves again and found that the center valve does not open flush with the top of the exhaust port, it hangs down a millimeter or two. Any words of advise on getting it to open all the way? Going to pull the top end tonight.
bandit88:
found that the valve guides were dropping a couple mm since the gasket is cut out for them. Made some shims to prevent that and all seems good now. Hoping for a test ride tomorrow.
dave916:
--- Quote from: bandit88 on May 27, 2016, 04:56:02 PM ---found that the valve guides were dropping a couple mm since the gasket is cut out for them. Made some shims to prevent that and all seems good now. Hoping for a test ride tomorrow.
--- End quote ---
Worn Pins on the centre valve wont help things either
Foxx4Beaver:
--- Quote from: bandit88 on May 27, 2016, 01:46:06 PM ---Think I found the issue. Was looking at the power valves again and found that the center valve does not open flush with the top of the exhaust port, it hangs down a millimeter or two. Any words of advise on getting it to open all the way? Going to pull the top end tonight.
--- End quote ---
here's a good thread on KIPS tuning and the center valve...thanks to KXcam22 and Doordie...
http://www.kxriders.com/forums/index.php/topic,1367.0.html
bandit88:
--- Quote from: Motorrad on May 28, 2016, 05:07:55 AM ---Got to shim em... and don't run the base gasket with the big holes
--- End quote ---
What gasket do you run? 86-88 or some custom cometic one?
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