My sled (2003 800 rev sport) is idling rough and around 3000 rpm, also when I shut it off it usually backfires. The needles were lowered when the carbs were cleaned - could this cause any problems? Also seems to be overheating a bit. Any suggestions? Thanks.
Could have something to do with the excessive heat. More air = engine running lean = more heat. If you need to replace the boots get V-Force reeds from Sled-parts.com. They are $260 for the pair, instead of the $143 each for the POS BRP replacements. The boots come with the reeds and are much better quality then the stockers. If you do need one though, I have one that I took out of my sled. Only one boot on mine was gone so the other one is still good (no rips). PM If you want it.
I just replaced a set of reed cages on my 700 mxz for rough idle, it seemed to run fine at higher rpms, but it also started using more fuel. I pulled the cages and found the reed pedal seats were delaminated from the metal cage, totally coming apart on the PTO side. Put new reeds and cages in, runs smooooooth.
Thanks for all the input guys. The problem was loose y pipe bolts - 3 OF THEM - weren't tightened when the new crank seals were out in. It now idles at 2500 when you first stop and then down to 1600 after about 20-30 seconds - and no more backfire. Thanks again.
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