high idle speed.

MikeBike · Nov 4, 2008

hi all
i got a trouble shooting question: when i pull on the cluch to disengage it, they idle speed shoot way high, is that normal? it doesnt seem normal.

unraw · Nov 4, 2008

Have you tried unscrewing the idle screw on the carb a bit? does this bring your idle down? Also, do you have a boost bottle? That makes it do that too.

Edit: Is this a happy time engine or a four stroke or what?

misteright1_99 · Nov 4, 2008

Might also try the adjustment on top of the carby.....

MikeBike · Nov 4, 2008

its a 2 stroke "80cc", ive adjusted my screw a lot on my new carb, my old one the screw didnt do any thing.

Technocyclist · Nov 5, 2008

Have you checked for vacuum leaks?

Bikeguy Joe · Nov 5, 2008

Check for air leaks.
Turn the screw out (counter clock-wise) all the way until it is loose and see if that does anything.
Turn the brass piece IN in the top of the carb. until there is some slack in the housing.

OSCAR383 · Nov 5, 2008

Air Leak Would Be My Guess

thatsdax · Nov 5, 2008

Sounds like a lean condition, either from an air leak or carb needle too low.

Saddletramp1200 · Nov 5, 2008

Throttle cable well lubed? Kinked?

Bikeguy Joe · Nov 5, 2008

Does it die when you flip up the choke? If not, it's leaking air.

OSCAR383 · Nov 6, 2008

I Just Read You Put On A New Carb Did You Instal The Cable Correctly If The Silver Disc Is Not In The Spring Return Will Not Work Properly And Could Leave The Throttle Open

MikeBike · Nov 7, 2008

WOW thank you for all the replys

Bikeguy Joe said:
Does it die when you flip up the choke? If not, it's leaking air.

yea its shuts down.

MikeBike · Nov 7, 2008

OSCAR383 said:
I Just Read You Put On A New Carb Did You Instal The Cable Correctly If The Silver Disc Is Not In The Spring Return Will Not Work Properly And Could Leave The Throttle Open

yea its in the right spot.

MikeBike · Nov 7, 2008

thatsdax said:
Sounds like a lean condition, either from an air leak or carb needle too low.

dax, i am going to do that when i get home, but that just might be it!

MikeBike · Nov 8, 2008

there was know difference from 2nd from the top and 3 from the top

unraw · Nov 9, 2008

sounds like an air leak. Try putting an o-ring in your carb. I o-ringed my carb and it made a big difference.

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high idle speed.

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