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I have a 1990 trailboss 4x4 polaris i put new rings and pistons in it started for a minute then quit its getting fire what could be wrong

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Everything could be wrong, wrong size piston, rings, but most likely you have a timing issue. since it ran at first and I don't know how well or long it could have jumped time or broken the tensioner for the chain. but if it was slightly off you probably bent a valve an it is staying open slightly preventing compression. pull out your plug and put your finger over the plug hole to check the compression. if no compression then you bent the valve.

Posted on Dec 09, 2014

Testimonial: "now it just back fires how do you time them"

  • monty murphy
    monty murphy Dec 09, 2014

    its got compression

×

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: 1990 polaris trailboss , trans ,or clutch slips in water

Check for wore clutch belt and also check to see if your getting water in the clutch housing. If your getting water in the housing, your clutches could be corroded as well. There should be no water getting in that shroud.

Posted on May 19, 2009

  • 9 Answers

SOURCE: polaris will not run

Seriously, guydaigle? The 300 Xpress is a two stroke. The problem is too much fuel. Start by checking and adjusting the carb. Look at the needle & seat, then the float level.

Posted on Nov 09, 2009

lindsay836
  • 677 Answers

SOURCE: I have a 1999 Polaris Diesel 4x4. It will run for

I would say you may either have water in your fuel or a filter that should be replaced, or even a blocked air filter.
Please let me know what you find

Posted on Feb 07, 2010

Testimonial: "At least you've given me a starting point. I'll let you know what I find out. Thank you for your help."

  • 1 Answer

SOURCE: Instructions to tighten the chain on a 2003 Polaris Trailboss 330

I have the same problem and it's wearing on my frame we tightened it and all it did was stiffen the suspension

Posted on Jun 10, 2011

  • 32 Answers

SOURCE: i put a stator in my 2007 polaris 330 trailboss and it still want charge

Gap setting could be incorrect, the the battery could be bad. Stator only put out a couple of amps just enough to maintain a good battery.

Posted on Nov 15, 2012

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was it literly a minute that it ran or was it like 10-15 minutes with you reving it up a bit? It could be many different things from as simple as it ran out of the gas that was in the carb and the tank valve is shut off to things like your magneto coil is shorted, no spark. Have you checked for spark and fuel? Does the engine have compression? More details will help solve your problem.


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Check for wore clutch belt and also check to see if your getting water in the clutch housing. If your getting water in the housing, your clutches could be corroded as well. There should be no water getting in that shroud.

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