I'm running a 2002 Xc 700 sp
it has 500 main jets my plugs are dark brown and a tad oily when I remove them
just bought 490 jets
by going down 1 size am I in danger of "holeing" my pistons?
I don't think so but any input would be helpful
Man, I can't remember the specifics, but I know that in one of the last couple Snow Techs, they had an article about the Mikuni jet sizes right around the 500 mark being a little off. Meaning you think that one size is too lean, so you go up one which is actually leaner (could be real trouble). I think it might be the 490 to 500 jump meaning the 490 is actually a little richer than 500. Anyone else remember the specifics? I'll take a look to see if I can find that article again.
Either way, watch the plugs and ideally get bend-a-light and look for piston wash.
Actually I just read the article 2 days ago. It was the 520 jet that was actually leaner than the 510. It has to do with the numbering system used by Mikuni that the smaller size jets overlap the larger sizes (for some reason) in the flow rate. The specs for a 700 XC VES went from a 510 to a 530 for colder temps for that reason.
I am looking at what I think is a 1987 Polaris Indy Trail, could someone please help me verify what sled this is.
Model 0870761
Serial 1421358
Build Date 0901986
I would like to know what engine this has as well. It is 2 cylinder
Hello All,
I have a 2004 Polaris Frontier touring 4 stroke liquid cooled sled with the 136" x 15" x 1" track with the 2.52 pitch track that I use purely for ice fishing. Can I stud this track without damaging the tunnel or rear heat exchanger? I purchased 108 Fast Trac 1.175" triple X series...
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95 polaris 500 efi - bogs down after warm up. I see others with similar problem. Machine runs fine for 20 min. Then it begins to bog down. Shut it off for 10 sec, something in ECU resets and it runs fine for 10 min, then begins bogging down again. Shut it off for 10 sec, runs fine for 10 min ...
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