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By Chase Cook
Have a 2001 polaris sportsman 500 4x4 atv and when I put coolant in the radiator it starts leaking from the exhaust. The valves are sealed but it stopped making compression. Do I need to just replace the head? I just rebuilt the hole top end and this is the only thing +valves that I have not replaced and was wondering if that is why it's not starting up. Need answers please.
By Jeff Cotter
I recently purchased a 2000 polaris xplorer 400 4x4. When I bought it the starter was bad, speedometer didn't work, and it had been sitting for 5 years. I replaced the battery, and starter. Changed all fluids, and got it running correctly. Then replaced the speedometer in an attempt to make sure the awd would be available when needed. And took it out for a couple hour ride with a buddy.
It ran great that ride with no serious problems just a little carb issues which I was able to take care of on the trails. Then a couple days later I decided to take it out for a ride by myself, again ran great no issues other than a couple times it seemed to cough and then take off again. That day when I was loading it I noticed coolant dripping onto the trailer and the overflow bottle was empty.
Got home and decided to drain the counter balancer, when I did that I got about 3 cups of coolant. Im guessing that it needs new seals and all for the water pump.
My question is how difficult is it to do the water pump and should I attempt it or should I send it down the road to the polaris dealership to get it done?
I have had this ATV since new, and no work done on the system before. It has an intermittent issue with starting for years but getting worse. Cranks but no start or have to cycle power. No Codes. There are times it starts right up and then times it will not start at all.
What I have done, new plug, new battery, new coil. Also, the manual I have has spec info for the H1 & H2, but when I check ohms & AC voltage & wire color, it is more in line with the H2 than H1.
Ok here is what I have done.
1. new plug then new battery.
2. checked and replaced the coil- primary was 5ohms and secondary was 20.4K ohms. Since my book said for the H1 the Primary should be less than 1ohm I replaced (new one had the same 5ohms, confused! H2 says 4.8ohms). Book says secondary should be 12k-20k ohms and it was 20K ohms. New coil did not correct the issue.
3. Stator, AC output while running was good, about 75 volts AC no load between the three yellow wires (but mine are gray wires like the H2). Ohms were also less than 1 ohm.
4. Crankshaft position Sensor. Again, H1 should have Blue & White but I have Blue & Green like the H2. I have 180 ohms across the Blue & Green wires, so this is good. But when cranking I have 2 volts AC. For the H1 book says 5 volts AC. But H2 says 2 volts AC.
So, is my position sensor putting out low voltage or do I have the stator assy for an H2 in my H1 ATV from new? Stator & position sensor are one assy. Has this ever been an issue that was noted? New Stator is $$$ so I don’t want to just shotgun a part.
Any help would be great!
Ran it out of gas last month... Works fine for 3 or so days then refuses to start.... Changed out the sparkplug and it will run for 15 or so seconds before shutting off.... Cleaned out the fuel system and injector and it misses when idling as well as shutting off at idle every so often... It is giving me no other issues and sounds and runs fine while riding... Only issue is cutting off at idle.....
I finally found an awsome app for your phone that shows you on a map all the trails near your location. You can read or add reviews, look at picts...etc
Its called: atv escape
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By Sheila Hillis
2008 Polaris Sportsman 800 HO EFI. Has anyone ever tried to move a radiator back to its original spot from a relocated spot.
I cant seem to get the radiator seated correctly. Any thoughts?
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