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Reving issues

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Hey,

 

I just bought a 2000 kdx 220 and have been having some issues. It revs on its own sometimes. It goes beyond warming up. Even in neutral just sitting there it will just start to rev up on its own. It revs all the way up and then drops back down. It may or may not rev back up at that point. It is not the cable or slide. The slide and carburetor are spotless not a drop of ethanol gunk. Any ideas on what the issue is and what I can do. This is my first bike so all the help is appreciated.

 

Thanks

Alex

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Hey,

 

I just bought a 2000 kdx 220 and have been having some issues. It revs on its own sometimes. It goes beyond warming up. Even in neutral just sitting there it will just start to rev up on its own. It revs all the way up and then drops back down. It may or may not rev back up at that point. It is not the cable or slide. The slide and carburetor are spotless not a drop of ethanol gunk. Any ideas on what the issue is and what I can do. This is my first bike so all the help is appreciated.

 

Thanks

Alex

 

 

Check intake boot.

Check reeds

Check intake boot gasket

Make sure hose clamp is clamped down good.

Well used bike?  hopefully something simple.. Seems like an air leak causing this.

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Check intake boot.

Check reeds

Check intake boot gasket

Make sure hose clamp is clamped down good.

Well used bike?  hopefully something simple.. Seems like an air leak causing this.1

Yes it is well used. It is my first bike so I am kind of learning as I go. It didn't run when I got it. Is the spraying starter fluid the best way to test for an air leak? Thanks for the help

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Yes it is well used. It is my first bike so I am kind of learning as I go. It didn't run when I got it. Is the spraying starter fluid the best way to test for an air leak? Thanks for the help

 

 

I'm learning as I go too!

 

I guess you could use starting fluid. I've always used carb cleaner as it makes the motor die off.  Use what you have.

 

But before you do that. Just give it a good visual inspection. Pull the air filter off, the air box, pull the carb, pull the reed cage out and look at the reeds. they should not have cracks or chips, and should sit firmly against the reed cage itself.  If they are a not flush against, you can flip them for now and it'll be ok till you get some new ones.   A good visual inspection of the intake boot should reveal any major cracks. You can kinda squish it to see if theres anything going on.

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I'm learning as I go too!

 

I guess you could use starting fluid. I've always used carb cleaner as it makes the motor die off.  Use what you have.

 

But before you do that. Just give it a good visual inspection. Pull the air filter off, the air box, pull the carb, pull the reed cage out and look at the reeds. they should not have cracks or chips, and should sit firmly against the reed cage itself.  If they are a not flush against, you can flip them for now and it'll be ok till you get some new ones.   A good visual inspection of the intake boot should reveal any major cracks. You can kinda squish it to see if theres anything going on.

Thanks for the help I really appreciate it!

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