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Triumph Torque    Cars    Herald/Vitesse  ›  spark plug gap
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May 26, 2017, 5:50am Report to Moderator

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Quoted from daver clasper

Had this with mine. After a lot of fettling with new carb parts, now have brown/sooty around city, grey on a run which is better.

Don't really understand the dashpot thing to produce more mixture for sudden acceleration , as its slowing down the main piston (which will let less air, but also presumably at the same time,   let less fuel through the jet hole?).

Cheers, Dave  

Hi Dave, with the airflow a lower pressure is produced in the intake side of the carb piston giving a higher velocity which literally sucks extra fuel out of the jet even though the needles upward movement is delayed by the dashpot oil.
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