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Re: Cold Weather Choke
Check to see if your manifold heat riser valve is stuck in a position I call Open....(no/little exhaust gas being directed upwards to the intake manifold base.) Easiest way is to simply drop the exhaust pipe and look up inside at the flap....flap horizontal, no heat rising it all go's out the pipe....flap vertical, heat rises to warm the carb and intake manifold.....
On a cold engine ya need heat goin up, once its fully warm, can be 30 minutes or so to stabilize the carbie, the flap should go horizontal via the springs and direct all the heat down and out.
Carbs will be cold natured, specially up there and with high ethanol gasoline. Might be as much as 40 miles on the freeway till yer carb comes up to full temp.
If its really bad, ye'll see ice on yer carb base even when the manifolds are too hot to touch.
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