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Post by geh3333 on Jul 26, 2013 6:36:00 GMT -5
i was wandering if anyone here knows what idle jet is usually in a 32mm cvk pumpcarb with a 125 main jet ? ive always had popping on decel which means ineed to up the idle jet. some refer to this as backfireing which is not true a backfire is completely different . i hate taking this carb out it is a pain to get in and out. just figured id see if anyone knows offhand thanks
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Post by jerseyboy on Jul 26, 2013 7:58:57 GMT -5
As long as your plug looks good,,and you have that big jet for the top end,,I wouldn't worry too much about a little decel popping,,most race motors I ever heard do this,,depends how loud it is,,are there blue flames coming out the pipe,,is the pipe changing color,,getting a bluish purple up by the head?
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Post by scootnwinn on Jul 26, 2013 9:57:38 GMT -5
I assume you have already tried to richen the ration with the mix screw. Usually a little popping can be mixed out with out changing the idle jet...
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Post by geh3333 on Jul 26, 2013 12:40:12 GMT -5
thanks both of you , no there are no flames or anuthing and i have adjusted the a/f . ill just leave it alone. thank you
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Freshman Rider
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Joined: Feb 27, 2013 9:57:25 GMT -5
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Post by turtleracer on Jul 26, 2013 17:02:02 GMT -5
When I bought my Helix, it would pop on deceleration. I adjusted the valves and it went away.
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Post by geh3333 on Jul 26, 2013 18:28:14 GMT -5
both valves are set at a tight .004
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