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  #1  
Old 06-02-2008, 05:37 PM
motorox's Avatar
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Default how dead is it?

I was warming up the bike - tooling around like always - hear a clank -
dead

kick start won't move - piston locked? not sure why

I did put a new radiator hose on but re-filled and it seems full - did i get an air pocket and the engine overheated?
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  #2  
Old 06-02-2008, 05:55 PM
char393's Avatar
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Default Re: how dead is it?

Sounds like it's time to pull the cylinder and see what the damage is.
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  #3  
Old 06-02-2008, 06:07 PM
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Default Re: how dead is it?

sounds like it siezed to me sorry dude
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Old 06-02-2008, 07:00 PM
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Default Re: how dead is it?

Sounds like you seized it up pretty good but I wouldn't just look at the top end either. Make sure after you get it torn down you check the crank real well. For starters I would pop the head off and see what the damage is. This way you can get an idea of what your up against.

When ever your refilling your radiators grab your manual and see how much fluid it's going to take to refill them. This gives a somewhat decent baseline on how much your going to use. While your filling her back up squeeze the radiator hoses till you hear the "burp". Air pockets will form every now and then and can be a little stubborn at times. If it doesn't burp, start it, warm it up for a minute or so, turn it off, let it cool down and then check your fluids. This usually works pretty well.

Kevin
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  #5  
Old 06-02-2008, 07:09 PM
motorox's Avatar
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Default Re: how dead is it?

i didn't drain it - just took off the top hose that attaches to the cylinder head - not much came out and I topped off the radiator to full -

oh well - it was an older bike anyway
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  #6  
Old 06-02-2008, 09:36 PM
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Default Re: how dead is it?

took it apart - piston is shattered at the bottom

so what caused that - ?????

won't turn because pieces are in the lower end
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Old 06-02-2008, 11:17 PM
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Default Re: how dead is it?

same thing happend to me on a 2003 yz250 the ring snagged a hole on the cylander and it crumbled in my engine.
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  #8  
Old 06-02-2008, 11:30 PM
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Default Re: how dead is it?

Doh. well it's a 1992 i bought for $700 and rode for a couple of years. - I told myself I should change the piston before I start riding hard this year - too many other things needed attention first around the house.....

Let us all join together and think pleasant thoughts as we send her to that great triple in the sky -
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  #9  
Old 06-03-2008, 12:40 AM
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Default Re: how dead is it?

Cylinder was probably way out of spec causing a bunch of piston slap. This probably caused it to shatter and scatter....I'm not sure if the piston is nikasiled but you may be to replate it back to stock bore depending on the severity of the damage....In the meantime I think you need to post some pics...
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  #10  
Old 06-03-2008, 07:58 AM
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Default Re: how dead is it?

I wouldn't waste your time. I should have replaced the piston since it was that old and used. Guess you really need to develop an ear to notice piston slap. oor I am totally deaf

i would think I would have lost alot of compression, hard to start, and other perfomance symptoms before the piston would go like that

well at least no one was hurt. thanks for the attention. ATM is like having a cool neighbor that knows everything. very helpful folks
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