dirtbike question
Sep 11, 2005 | 09:55 PM
#1
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Trailblazer
Joined: Apr 2004
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dirtbike question
today i was riding my CR 250 and it was running great for hours. Then all of the sudden it started making a weird kind of grinding and clinging noise. It sounded like it was coming from the cylinder. i was worried that it was about to seize up. So then it stalled out and wont start up again. its not seized because i can still kick it over but it doesnt even come close to starting. I know its not the plug or anything because i checked that. Could it just need new piston rings or something like that? Thanks for any help.
Sep 11, 2005 | 10:12 PM
#4
Elite Pro Rider
Joined: Dec 2004
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dirtbike question
Originally posted by: Pitfan04
I know when that happened to me on my older dirtbike about 3 years ago, I blew the crankcase.
I know when that happened to me on my older dirtbike about 3 years ago, I blew the crankcase.
Sep 13, 2005 | 09:54 AM
#7
Shed Knocker Rider
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dirtbike question
Im guessing it is a plug by the way he describes it. Put a new one in and see what it does.
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Sep 13, 2005 | 10:31 AM
#8
KTM Patrol
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From: Hat Creek, Ca
dirtbike question
Originally posted by: motox26
Im guessing it is a plug by the way he describes it. Put a new one in and see what it does.
Im guessing it is a plug by the way he describes it. Put a new one in and see what it does.
Sep 13, 2005 | 12:07 PM
#9
Shed Knocker Rider
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dirtbike question
Originally posted by: mywifesquad
That depends on what "grinding and clinging noises" mean. [img]i/expressions/face-icon-small-wink.gif[/img]
That depends on what "grinding and clinging noises" mean. [img]i/expressions/face-icon-small-wink.gif[/img]
Im thinking more of that un-healthy pinging noise when there about to foul, I know the first time I heard one I thought something un-healthy was going on!
Sep 14, 2005 | 07:21 PM
#10
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Trailblazer
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dirtbike question
Ok today i was working on the 250. I was listening to what it sounded like when i kicked it over and i heard a strange noise like there was an air leak. So i looked around and surely enough there was an air leak at the botton of the crankcase where the gasket is. I looked closer and realized that there was a smalll crack in the crankcase goin right to the gasket and this is where the air is coming from. When i kick it over a little oil and air comes out. the crack is very small. So is this the reason why it is not starting? I do not want to buy a new crankcase because of a little crack because they are about $300. I was thinking about putting some JB weld over it to stop the air leak. would this work? Thanks for the help guys.