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Flipper Tiffany Roper Jones

Polaris 500 sportsman give it gas stalls

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I hear you but that’s the function of a regulator I’m sure you know that already but maybe it’s defective? Was it an oem or aftermarket? 

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No im lost with this. I will keep looking  into it.  Just got back from a long weekend. I will talk to a buddy of mine who specializes in Polaris. 

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It happens. We all (is flippers) get that occasional machine that does this to us. Best part is when it’s figured out and running good it’s worth the work.  So walk away and do some research and between you and Quadcrazy there will be a logical answer.  

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Is the flywheel keyway intatact?. If the keyway is broken can also get an erratic voltage which can  take out the regulator/rectifier. Also can cause issues with timing and cam walk.  My manual state a 1/4 preload on the spring and that the cover is also a cam thrust plate

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Key is 100% in tacked. But for some reason its either flapping around in there with enough force to bust it off its steam. Or something is throwing it out so hard to but it off the steam. I just have to believe its bouncing around with so much force to break it off 

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I went and got a new cam yesterday it doesn't even come with the spring preloaded which sucks. Right now I'm trying to find a cap before I can try it again. Just worried to break another one 

Also ? How on earth can the motor go backwards some where on hear someone said sounds like the motor went backwards how can that happen 

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That can happen if the engine backfires. Usually if timing is off or an unusual amount of fuel that builds up in the cylinder.   The engine kicks back.  

Can you screen shot the page that explains the cam and spring installation and post it here ? I want to read it. I don’t have time to start looking for the manual. 

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Question I fired it back up with everything back together but figured I would test the alternator first fired it up 17-18v ac let it idle for a while now 22.7vac and 7.6dc what is going on

Also if I rev it up even a little its 50v ac just putting a little bit higher idle to it that's phase to phase btw

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That was straight off the stator from wire to wire the ohms dont match manual thru exciter coils either whoever had it b4 me bought stator and voltage regulator new well when I test exciter coils there 513-521 ohms manual says 446 so makes me think something is wrong I honestly think they bought a 96-97 stator colors dont match even close to what there supposed to.

That is off the stator output

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Hmmm possibly the wrong stator. But was it running ok before all this happened ? The wires don’t match ? The plugs fit up or spliced wires?

 

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No way. Barking up the wrong tree. What’s your DC voltage at the battery when idle? Ultimately, your spark runs off of DC voltage. HOWEVER...there used to be a problem where the magnets were flying off the flywheel and there are two types of flywheels. The one that had the problem had four magnets and the newer ones (the good ones) had 6 (if I remember right). I could see a problem if they replaced an old style flywheel with a new style flywheel throwing off the pickup. But tell me your DC voltage at the battery at idle.

Another thing to check: do you have a timing light? Use that to see if it’s actually losing spark when you give it gas. And what happened with the shot of carb cleaner test when you gave it gas?

Edited by BuggyMasters

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When I first started it up it was perfect 18v ac from stator  12.7v dc output then I left it run a little bit longer at idle then it jumped up to 22.5v ac and 7.6v dc so I kept checking it revved it up a little and jumped up to50v ac I didn't want to hook voltage regulator up to that high of voltage 

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That still would not make sense for the voltage to jump all over the place like that. Even if some of the magnets are gone OR the newer flywheel with the additional magnets was in place the voltage  should be stable if the engine is spinning at a constant rpm like it was explained? It jumped from 18v to 22v at idle ? How could the voltage change if the rpms did not ? My money would be on a bad stator. I do however find your information on the flywheel a very interesting point. 

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The job of the regulator is to smooth and stabilize / along with handling you AC/DC conversion. So you had 12.7 DC at the battery with everything hooked up correctly or are you saying 12.7 without the regulator hooked up? The more important measurement on the stator is each of the 3 primaries to ground in which there should be no continuity. Usually when people change the stator it’s because the battery is not charging. I want to know battery voltage with everything hooked up at idle. The flywheel magnets being correct is relevant for the sake of the pickup. I just can’t remember the specifics but seems that it’s ok to have the newer flywheel so long as you have the matching newer stator. New flywheel and old stator/pickup coul is not going to work if I remember properly.

Edited by BuggyMasters

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