2000 Polaris Indy classic touring 500, 5000 miles. First ever trouble. The machine felt like it would bog down when putting the throttle to it. At fully throttle it would only make 6000 rpm and 42 mph. If I feathered up to 6000, it would eventually let me give it more and clear to 8000 rpm. At idle or as I held the rpm steady at maybe 2000 - 2500 rpm, it would miss and/or almost backfire. If I accelerated slowly and just kept giving throttle at an easy pace, it would clear and run up to 8,000 rpm (some times). If I grabbed on, it would bog and never make it over 6000. After 20 miles, it cleared and ran great the remainder of the 130 miles with several stops (cold starts). I changed plugs on the trail - no difference. I'll be tearing down the carbs, but have always wondered about the exhaust and/or intake reeds? I have never touched the reeds and the trouble sure doesn't seem like the usual carbs. Any thoughts?
No top end
- Thread starter eyeman
- Start date
mr_fusion_ho
New member
I had that same problem when there was a crack in the carb boot.
trailshredder
Member
5000 miles on sled....time to check the buttons and spring on the secondary. Your buttons could be worn right down to nothing, not allowing top RPM.
If it cleared up and ran great after 20 mi, then I would lean toward a frozen gas line that finally thawed. How is it now? Dump in some isopropal.
With that said, with that many miles, I would still deffenatly check out BOTH clutches. Could be binding. Preventitive maintenance goes a long way.
With that said, with that many miles, I would still deffenatly check out BOTH clutches. Could be binding. Preventitive maintenance goes a long way.
Never thought about dropping snow on pipe. Great tip, but I changed both plugs during the first 20 miles on the trail and no go - it still loaded up.
I suppose it's possible that it was a frozen line/carb or similar, but it would clear and then re-load up. It seems to me if it was a freeze, once it cleared it would be done. Same with a carb problem - once it cleared it should have been fine for good, but that's not what happened. I know very little about clutches, other than I did put new pins and weights on it last year - the old ones were fine, but not in the exact center.
Any help with buttons would be appreciated???? Thanks.
I thought you said it cleared up and ran fine after that. You did not say it came back. Either way, just put some isopropal in the gas.
You do have buttons in both clutches, but the secondary is more than likely where the problem is. You will need to disassemble it and find the three plastic "buttons" that the helix rides on. They are probably almost non existant by now if you have never chenged them. Remove them and replace with new. Clean everything and reassemble. If you never reassembled one, make sure you put the spring in the same hole it was in and turn the upper sheeve 1/4 turn counterclockwise and hold before pushing the helix down to install the snap ring. Get someone to help if that makes no sence.
You do have buttons in both clutches, but the secondary is more than likely where the problem is. You will need to disassemble it and find the three plastic "buttons" that the helix rides on. They are probably almost non existant by now if you have never chenged them. Remove them and replace with new. Clean everything and reassemble. If you never reassembled one, make sure you put the spring in the same hole it was in and turn the upper sheeve 1/4 turn counterclockwise and hold before pushing the helix down to install the snap ring. Get someone to help if that makes no sence.
It did clear several times during the first 20 miles and then completely after that.
Thanks for the guidance on the buttons and I'll get after that on all the sleds soon.
trailshredder
Member
See post #4
I'll check the boots first. Thanks.
motor_slut
New member
Check your crank seals. Ether sprayed at them should have no effect on how the engine runs if they are good.
I had a similar problem a few years back with an INDY Trail after 3 days of riding in snow/powder on the trails. I was on a tour ride. Took carbs off and cleaned and thawed in a cabin with no luck. Rode it rest of day back to trailer and put sled in heated garage for a couple days. Never had the problem again. Believe it or not I think snow/ice got in the stator/electronics and it needed to dry out!
Thaw the sled out good before anything else!!!
Thaw the sled out good before anything else!!!
It's in an unheated garage. I'll get the 250,000 btu LP going before doing anything else. Thanks.