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Old 10-02-2009, 12:42 PM   #9 (permalink)
Ryland
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Join Date: Jan 2008
Location: Western Wisconsin
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honda cb125 - '74 CB 125 S1
90 day: 79.71 mpg (US)

green wedge - '81 Commuti-Car

Blue VX - '93 Civic VX
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Alot of carbed engines came with warm air intakes stock, with a thermostat that keeps the air at 100 degrees F.
The better cold starting you might see is often because of the enrichment valve opening up or the choke being full close.
The warm air intake is often removed by people who don't understand what it does and notice that the car still runs ok that day.
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