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Serious Thumper 2005 No Login
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Professional "scooter trash".
Posts: 5207
Rosemark TN
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155 is overkill for sea level. If I was in Sag Harbor, Bridgehampton, Watermill etc where I have family I'd be running 152.5 or 150 over 52.5 or 50. You have the same problem on the island that we do here in Dixie, soggy air. Lean it out a stage or 2 on the top end, 1 down low, will run fine and bring your fuel economy up back a bit. Poorly atomized fuel (big jet) plus high humidity will coke up the cylinder head, exhaust ports, header pipe and muffler.
I ran a 155/55 jet set in the mountains and at sea level in WA. Bike smoked like an old tractor trailer and got a whopping 36mpg consistently. Pretty pathetic when that exact same bike with stock jets and modified exhaust in MS, TN, KY, AR, AL, FL and LA averaged 75mpg commuting and a high of 85mpg on the freeway...
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