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Author Topic: Is this piston good?  (Read 2107 times)

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Offline JustinSB

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Is this piston good?
« on: September 16, 2009, 06:28:26 PM »
It looked to me like it started to seize, but I thought it might just be carbon because it is in the areas which line up with the exhaust ports. It is a cast piston, which bothers me. Any comments are appreciated. Thanks!






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Offline cyclepsych0

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Re: Is this piston good?
« Reply #1 on: September 16, 2009, 06:49:21 PM »
From the photos, the scarring seems excessive... If it were my bike I'd definitely replace the piston and check the nikasil coating for any flaking. 8-)
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Offline KX500freak

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Re: Is this piston good?
« Reply #2 on: September 16, 2009, 10:43:08 PM »
yes same here ,and replace piston earlier next time ,this one seems almost polished :P
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Dutch Team Green 91-94-01 KX500

Offline JustinSB

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Re: Is this piston good?
« Reply #3 on: September 17, 2009, 04:24:37 AM »
A new one is going in. I just got the bike. I'm glad I caught it before it was worse and did cylinder damage or disintegrated.
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Offline flyin9

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Re: Is this piston good?
« Reply #4 on: September 17, 2009, 05:31:54 AM »
were your rings welded in the gap or do they move freely? looks like you KIPS are very gummed up or not operating correctly, or both. JMO
Jared
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Offline kaw rider

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Re: Is this piston good?
« Reply #5 on: September 17, 2009, 03:56:42 PM »
you may what to look at that one stud, looks alittle rusty. Notice how the burnt oil on exhaust side of piston only. That tells you something.
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Offline JustinSB

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Re: Is this piston good?
« Reply #6 on: September 17, 2009, 05:11:34 PM »
What does the oil on the exhaust side only tell me?
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