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Carb Woes....

Posted: July 24th, 2007, 10:59 pm
by AlisoBob
So I'm helping a friend tonight, says his bike dosent idle too well, and "runs rich" WFO....

So I go over there... look at the bike for a few minutes... and notice the carb "top" is way crossthreaded.... looks like its barely on there...

I explain to him this is bad for a few reasons....

1. Dirt is entering his engine.

2. So is unmetered air ( poor idle)

3. Since the carb top is 1/4" higher than it should be, the needle is being pulled higher by the same amount. This is making it rich @ WFO..not good.

4. MOST IMPORTANTLY! If the needle gets pulled so high that it pops out of its bore, your never going to get that slide down. It may be the last mistake you ever make. CR500's running WFO uncontrollably can do some real damage to you, and anything in your path.


It took 1 motion of my wrist to get it off ( 1/4 turn or so)

It took 8 motions to get it back on correctly...


BE safe out there fella's.. .dont be afraid to have a buddy look over your bike, in case you missed something...


:wink:

Posted: July 25th, 2007, 11:19 am
by redridermv
Hey Bob, It was great meeting you last night. I feel like a bonehead for not screwing the cap on correctly but I am sure gratefull that you noticed it. Some times you need to stand back and double check your work.

Thanks again

Posted: July 25th, 2007, 3:50 pm
by ou812
Wow you may have saved him from some serious harm, That dude should be buy ya a beer or 3

Posted: July 25th, 2007, 6:33 pm
by iggys-amsoil
:yikes: and make sure the cable is all the way in the brass thingy too.

Lucky for me at the time the kill switch worked.

Posted: July 25th, 2007, 8:50 pm
by redridermv
I will always have an extra few beers for Big Bob :D

Posted: July 28th, 2007, 9:19 pm
by 90cr500guy
Good find Bob.
I never really thought of that, but so far I havent had a problem with the caps