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I recently purchased a 2007 polaris 600ho rmk 155 track with a 685 big bore. The sled runs on 91 octane, has an slp single pipe and can, gutted airbox with slp air horn, added air intakes in dash and vforce 3 reeds. Primary clutch has a bright green spring in it and 10-58 weights, secondary has red/black spring and 64-40-.36/64-38-.36 helix. Current jetting with carbs bored to 42mm is 340 mains, 145 starter jet, 50 pilot jet, .9 pilot air jet and needle in #2 position. My main riding elevation is 6,000 to 8,000 feet and I'm wondering if this jetting looks good for that elevation and any thoughts on clutching. Any info would be greatly appreciated.
