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T500 Carb Bucking issue

Posted: Mon Apr 11, 2016 4:45 pm
by LexPaul
Just checking to see if there is any advice on this big bore 2 stroke carb bucking issue at deceleration? I've read up on the issue some and I understand that I should adjust pilot air screw up or down to see if I am running too lean or rich.

Ivan mentioned going up to a #35 pilot jet. I do not see that item # listed in my sources. Has anyone had success with this modification from standard #30. Does anyone have the #35 pilot jet item # so that I can do a search if needed?

Last but not least, does anyone else want to throw out an idea on this? Thank you LP

Re: T500 Carb Bucking issue

Posted: Mon Apr 11, 2016 5:30 pm
by karl pa
On my 76 GT500,I had severe bucking when decelerating and slow speed,turned air screw out to lean out,ran much better.On my 73 GT750 I turned air screw in to richen mixer to solve issue.

Re: T500 Carb Bucking issue

Posted: Mon Apr 11, 2016 5:46 pm
by ConnerVT
They are sized in 2.5 step increments, so you can go up to 32.5 first.

VM22/210-32.5

VM22/210-35

Re: T500 Carb Bucking issue

Posted: Tue Apr 12, 2016 2:22 pm
by titan performance
Ivan was right......fit a 35 and it will be cured !

Re: T500 Carb Bucking issue

Posted: Wed Apr 13, 2016 1:20 pm
by LexPaul
Once I fit a 35 will there be other adjustments, of a non traditional specification, that I will need to make with the pilot and throttle screws? Thank you gentlemen.

Re: T500 Carb Bucking issue

Posted: Sun May 01, 2016 7:13 am
by LexPaul
Mine was running a bit lean, when I turned in the screw a 1/4 the bucking ceased. Thanks for the advice. LM