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Old June 10th, 2014, 05:36 PM   #1
roll-bar Bob
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Default idling too high

We have a 2003 Bombardier Traxter Max Quad that is idling too high after it is warmed up causing shifting difficulty and backfiring. We have cleaned the carb, put everything back the way i found it, adjusted the idle screw, and the machine starts and idles correctly cold. As the motor warms up, it sounds like the choke is on. the choke linkage looks to be in the same locations as the other 03 Max we have. Does anyone know what to do?
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Old June 10th, 2014, 08:53 PM   #2
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Air leak...spray ether around the carb and carb boot...if idle changes when you do that you have found your problem
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Old June 10th, 2014, 11:05 PM   #3
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did that with a unlit propane torch had no affect on the motor.
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Old June 11th, 2014, 06:41 AM   #4
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Does the quad have a fuel screw on he carb? If so close it all the way and let it idle. Did the motor die? Now set your fuel screw back to factory settings and adjust from there. If the motor didn't die you either are adjusting the wrong thing, or you missing the oring for the fuel screw.
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Old June 11th, 2014, 07:15 AM   #5
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If it is backfiring I would say it's over fueling. I would do as hch stated and look towards fuel screw.
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Old June 12th, 2014, 06:17 AM   #6
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Is the needle clip in the stock position. I have seen a high idle caused by the clip being lowered on the needle.
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Old June 12th, 2014, 08:35 AM   #7
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Quote:
Originally Posted by RADRICK View Post
Is the needle clip in the stock position. I have seen a high idle caused by the clip being lowered on the needle.
Something else was causing that...the needle is for midrange, not idle
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Old June 14th, 2014, 02:05 AM   #8
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Well it took some doing but I figured it out!!! After having the curb in and out a dozen times and come to find out it was the. Throttle linkage.
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