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ninjette.org certified postwhore
Name: Roger
Location: Mitchell, South Dakota
Join Date: Apr 2014
Motorcycle(s): 1978 Z1R, 1999 EX250
Posts: A lot.
MOTY - 2018, MOTM - Oct '16
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The reason you can't open the throttle is that the "choke" isn't really a choke, it's an enriching circuit and needs the vacuum created on the engine side of the carb. butterfly to pull fuel through the enriching port. If you open the throttle at all you lose the vacuum.
Oh, and welcome
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