Polaris Discussions about Polaris ATVs.

400 sport help

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Old Aug 16, 2004 | 03:04 PM
  #1  
yammaslamma's Avatar
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Default 400 sport help

ok well today me and a friend (hondaslayer) were riding and we were doing some wheelies messin around and i went to do another wheelie and then it seemed like anything past idle it would start sputtering and kind of cut out, also when i could get it to go to high rpms it would have a tough time idleing while i let it rev down so i would have to give it gas as it idled down..? any one have any ideas? it also backfired a few times..... soo any ideas??

its not the air filter because i had it out and it still did it.
 
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Old Aug 16, 2004 | 05:02 PM
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Default 400 sport help

did you put in a new sparkplug?
 
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Old Aug 16, 2004 | 06:39 PM
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Default 400 sport help

is the air colder /hotter than normal my 250 would do this on really humid days and really cold days when it got hot...
 
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Old Aug 16, 2004 | 10:29 PM
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Default 400 sport help

Check your fuel vent hoses. They may have gotten kinked. The float seemed to stick on occasion when I did wheelies with the stock carb might check that too.
 
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Old Aug 16, 2004 | 10:38 PM
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Default 400 sport help

Originally posted by: Jayblazer
is the air colder /hotter than normal my 250 would do this on really humid days and really cold days when it got hot...
if its jetted properly it wouldnt matter
 
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Old Aug 16, 2004 | 10:43 PM
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Default 400 sport help

yea but i aint jetting that thing every time the temp changes around here this summer it has been anywhere from 55 to 95 degrees its been the worst summer ever really only 2 days over 90 i might as well not even have the seadoos its been to cold to ride...mid 70s on average[img]i/expressions/face-icon-small-sad.gif[/img]
 
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Old Aug 17, 2004 | 07:52 AM
  #7  
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Don't let the hp numbers fool you. Its all in how you get it to the ground. Clutching clutching clutching!
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Default 400 sport help

Check your throttle cable play.You could have too much play causing the ETC to mess up or the ETC could be bad.
 
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Old Aug 17, 2004 | 11:41 AM
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Default 400 sport help

ok thanks for the help guys, i think i will check out the carb that might be the problem.
 
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