1985 v30 magna starts but wont idle

This 1985 vf500c magna is my first bike and I bought it as a project
bike. I have been able to get the bike to start and respond to the
throttle. But I have never been able to get the bike to stay at
idle. Ive been able to rev the engine but when I let go of the
throttle it dies. Now, as soon as I turn the throttle it will rev up
then die. Any ideas?
I went through the carb and everything looked good and cleaned
everything out. The one thing I can think it would be is that there
was one fuel joint gasket from the #1-3 carb that should probably be
replaced. Is there anywhere I can buy those gaskets rather than a
whole set?? Im on a pretty tight budget.

 

Gummed carbs. Ultrasonic cleaners are your friend.

 

I suppose you've tried turning up the master idle knob under the carbs and that didn't help.

Our gasoline available here in the USA usually has 10% ethanol added to it and that gums up the tiny jets, ports, and passages in the engine.

I recommend buying a 15-ounce can of Berryman B12 Fuel Treatment (costs about $3.50 at Wal*Mart) and pour four ounces of it into a full tank of gasoline.

Use a funnel to avoid spliiling any of the B12 onto your paint.

Then go ride the motorcycle until the idle RPM increases.

If the idle RPM increases too much, turn it down.

You can mail order carburetor parts from www.powersportspro.com and they will mail you the parts for a few $$$.

There are also places like www.bikebandit.com, www.oldbikebarn.com, etc that sell aftermarket parts.

 

On Tuesday, May 22, 2012 10:32:37 AM UTC-7, #*0*# wrote

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