Polaris Discussions about Polaris ATVs.

is it hard to replace a cam?

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Old Jun 26, 2009 | 08:44 AM
  #21  
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that dont look like my carb.. my carb is that brand but the cap dont spin off like that... its screwed on.. also do i have to take the fenders and gas tank off just to get to the carb?

Yes the carb is a slide and your ATV has a CV(Constant Velocity) but the bottom end bowl floats,main jet,choke plunger and pilot jets is the same which is the important part to clean.
 
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Old Jun 26, 2009 | 08:55 AM
  #22  
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is there a way i can do this without tearing off the fenders and gas tank? like take it out without removing that stuff?
 
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Old Jun 26, 2009 | 09:06 AM
  #23  
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Take the air box out to get at the carb.
 
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Old Jun 26, 2009 | 09:14 AM
  #24  
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i should be able to unscre it from the frame and slip it out the back by the air box... ? i have to take the kids to the dr. this am so i'll get at it this aft.. thanks for the help
 
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Old Jun 26, 2009 | 09:14 PM
  #25  
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Mine was doing the samething, i took out the air filter tried it and it run like a scolded dog, put in the filter, at mid to high rev it died, spits and sputters, take out the filter plenty of power, can't figure it out, new filter, samething, try pullin the filter and put the box back on see what u get, and did this start after the snorkel job?
 
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Old Jun 27, 2009 | 09:47 AM
  #26  
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i did take it out actually and didnt help... i did get if fixed yesterday took the carb off and took off the bowl and cleaned the mudd out.. i actually found 2 clumps in there so i cleaned it all out and everything ran fine.. only thing is now its running rich.. you can smell it in the exhaust.. i have some seafoam in there.. maybe too much? idk.. im gonna fill the tank up with 93 and see if that helps... its not terrible old gas so idk what would cause it to run so rich
 
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Old Jul 18, 2009 | 07:16 PM
  #27  
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Default cam lobe GONE--Filings in tank and crank case

I had all the same issues--great idle, no power on rev up, pops and snap back fire, carb not plugged or dirty, fuel clean and new, change oil 1-2 times a year, use polaris oil, hardly ride it anymore anyways, on and on.

I read these post about cam lobe wear and looked at it --I bet 10 times in the engine. Swore up and down that cam was ok each time.

Moral of the post here--look close, are the exaust valves moving the same amount? That is what a recent post suggested and that is exactly what I did not have.

I installed a new cam and exaust rocker arm for $255.33 and I'm back in business. Runs like new--

THANKS FOR YOUR POSTS--even if I was too bullheaded or stuborn to follow then from the start.

PS change oil, in tank, open the bottom plug in the crank case and check the screen on the back of the oil tank (remove the banjo bolt)--mine had metal filings and mush in all those places.

AP
 
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Old Jul 18, 2009 | 08:01 PM
  #28  
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check you pilot jet might be out of adjustment.(1-1/2 to 2 turns out)...causing it to be rich... but burn that tank off to get rid of the seafoam.... if you havent filled it yet i would drain it before the fill up....
 
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Old Jul 19, 2009 | 09:41 AM
  #29  
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PS change oil, in tank, open the bottom plug in the crank case and check the screen on the back of the oil tank (remove the banjo bolt)--mine had metal filings and mush in all those places.
Thats the material that wore off your old cam.
 
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