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Was just wondering If anyone could give me an idea on clutching and jetting for a 685 polaris with twins. Just bought the sled from a dealer and was told it was set up for 6 to 9 thousand feet. cant hold r's up at 8 to 9 thousand feet. Changed belt two weekends ago and im leaning twards cluching now. Was told that it had a low comp head on it for pump gas but im not sure that its safe to run a 685 with twin pipes on only pump fuel. Havnt tore into the clutches yet but did notice that the primary has a bright green spring. Any ideas would be greatly appriciated.