Category: Forum News

Hey guys, I lurk now and then, but this time I can’t come up with much. My buddies have new quads that blow mine out of the water, I want to be able to keep up, but I don’t like the price tag of a new machine. I have been thinking about putting a cam in my machine. I have been finding that it has an exhaust and an intake cam, is this correct? I couldnt find any engine diagrams but I looked up used heads for sale, and it looks like it has a pushrod style setup.

I have a couple questions, hopefully you guys can turn me down the right path. I am not trying to beat my buddies 1000 scrambler by any means, but I would like more power, will this give me a good boost? While I am in there should I rebuild the engine, or just do pistons and rings? It did not have a speedo when I got it, so I don’t know the mileage but overall it’s in pretty good shape for a 2003. Are there any other upgrades I should also do? Or should I ditch the idea of a cam for a better mod?

Thanks for any advice!

Throttle stuck on my machine and the throttle cable links into something else close to the carb. A friend of mine suggested to take out the oil pump and just run my throttle cable from the carb. Not exactly sure how I would go about it, any advice or input would be appreciated.
Thanks

I got a 03 sportsman 600 carb wheeler. I got good compression in both cylinders. It's getting fuel to carb. When you first turn the key on it it fire only once and then that's it. With either ether or not. I was wondering if anyone has a problem like this.

I got a 03 sportsman 600 carb wheeler. I got good compression in both cylinders. It's getting fuel to carb. When you first turn the key on it it fire only once and then that's it. With either ether or not. I was wondering if anyone has a problem like this.

Is anyone interested in purchasing a front diff out of a 2010 Sportsman 850xp for parts or repair? What I do know is everything internal, including an aluminum sprague cage is all intact and a working coil. I originally took it apart because the front wheels would engage intermittenly in 2x4 mode, if switch is in 4x4, diff works as it should.I was going to purchase an oem cage to try as there has been discussion of some aluminum cages out there, depending who you bought it from, may have different tolerances. I didnt want to fuss with it anymore.The ADC coil does not get magnatized. Send me an offer and I can send you pics upon request.

Is anyone interested in purchasing a front diff out of a 2010 Sportsman 850xp for parts or repair? What I do know is everything internal, including an aluminum sprague cage is all intact and a working coil. I originally took it apart because the front wheels would engage intermittenly in 2x4 mode, if switch is in 4x4, diff works as it should.I was going to purchase an oem cage to try as there has been discussion of some aluminum cages out there, depending who you bought it from, may have different tolerances. I didnt want to fuss with it anymore.The ADC coil does not get magnatized. Send me an offer and I can send you pics upon request.

Know the tail lights are supposed to stay on a few seconds after shutting down motor. But only my left one stays on for a few seconds? Tail lights both work fine when motor is running?

Know the tail lights are supposed to stay on a few seconds after shutting down motor. But only my left one stays on for a few seconds? Tail lights both work fine when motor is running?

So this is a polaris 2013 sportsman 800 efi, it started out running on one cylinder, we performed a compression test, 180 psi on pto side, 30 psi on mag side, so we disassembled the engine and found camshaft to be worn off and 2 lifters to be totally collapsed, but the crankshaft and connecting rods were in good condition. The pistons were also in good shape but the rings were questionable so they were replaced.

We put in a new aftermarket camshaft, new lifters, new water pump, new magneto/stator, new fuel pump ( not the regulator as it is holding at 39 psi), used cps and it was good, new tps, new map sensor, new coil, new spark plug wires, new ECU, new injectors. The flywheel key way is intact, not sheered, all the gears are timed properly, new plugs, adjusted the tps, checked intake boot for cracks, checked ETC, and checked wiring. We checked the oil pressure and at idle 3 to 5 psi, and then at 3500 to 5000 rpms we get 40 to 55 psi. The rocker assembly and valve movements seem to be good. We checked the exhaust for obstructions and it was clear.

The computer is not sending out any codes, not communicating with the scanner.

The engine will run now but it backfires from the throttle body.

STUMPED!!! Any ideas out there as to what could be causing this?????

So this is a polaris 2013 sportsman 800 efi, it started out running on one cylinder, we performed a compression test, 180 psi on pto side, 30 psi on mag side, so we disassembled the engine and found camshaft to be worn off and 2 lifters to be totally collapsed, but the crankshaft and connecting rods were in good condition. The pistons were also in good shape but the rings were questionable so they were replaced.

We put in a new aftermarket camshaft, new lifters, new water pump, new magneto/stator, new fuel pump ( not the regulator as it is holding at 39 psi), used cps and it was good, new tps, new map sensor, new coil, new spark plug wires, new ECU, new injectors. The flywheel key way is intact, not sheered, all the gears are timed properly, new plugs, adjusted the tps, checked intake boot for cracks, checked ETC, and checked wiring. We checked the oil pressure and at idle 3 to 5 psi, and then at 3500 to 5000 rpms we get 40 to 55 psi. The rocker assembly and valve movements seem to be good. We checked the exhaust for obstructions and it was clear.

The computer is not sending out any codes, not communicating with the scanner.

The engine will run now but it backfires from the throttle body.

STUMPED!!! Any ideas out there as to what could be causing this?????