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Old 06-29-2013, 12:11 AM
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16v4nrbrgr 16v4nrbrgr is offline
Motorized Bicycle Elite Member
Join Date: Mar 2012
Location: North Bay
Posts: 1,711
Default Re: Too hot to ride?

I usually go riding when the weather gets temperate in the late afternoon, although I think the rich a/f ratio for the hot air temp helps somewhat to cool the four strokes, even if they don't rip as hard as they might on a cold day leaned out. I was messing with the top end A/F screw adjustment on the pumper carb on the BMX the other day, and it was four stroking this hot afternoon, so the air temp definitely has a huge impact on the fuel usage in the motor, and whether its burning completely, if its not the motor will be cooled somewhat by the gas, but the exp chamber might get a lot hotter because it auto-ignites in there if you're four stroking.
KTM50 Schwinn Chopper - 6000W E-Motard - 52cc Auger BMX - 9sp+CVT 52cc Cagllari Moped
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