Author Topic: Cali classic 2013, cold air is bad?  (Read 880 times)

Seanie

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Cali classic 2013, cold air is bad?
« on: November 01, 2012, 08:39:03 PM »
why is it that cold air is really bad for carburetors on the scooters. Mine runs badly when it's cold.

gitsum

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Re: Cali classic 2013, cold air is bad?
« Reply #1 on: November 01, 2012, 11:46:09 PM »
Cold air is more dense making the fuel mixture leaner.  Try adjusting the air/fuel screw first.  In extreme cases it might be necessary to adjust the needle jet or go up one size on the main jet.

Syd

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Re: Cali classic 2013, cold air is bad?
« Reply #2 on: November 05, 2012, 12:15:14 AM »
why is it that cold air is really bad for carburetors on the scooters. Mine runs badly when it's cold.
Might also be the auto choke.  I had a problem with mine.  Does it run better after the engine is warmed up?  Do you normally let it warm up?

tortoise

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Re: Cali classic 2013, cold air is bad?
« Reply #3 on: November 20, 2012, 10:19:21 AM »
runs badly when it's cold.

Consider installing an enricher switch.

Seanie

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Re: Cali classic 2013, cold air is bad?
« Reply #4 on: May 11, 2017, 06:04:09 AM »
runs badly when it's cold.

Consider installing an enricher switch.

I blocked off the auto choke. It wasn't closing. Problem solved