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Old March 8th, 2018, 08:09 PM   #29
Z1R rider
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Name: Roger
Location: Mitchell, South Dakota
Join Date: Apr 2014

Motorcycle(s): 1978 Z1R, 1999 EX250

Posts: A lot.
MOTY - 2018, MOTM - Oct '16
The real purpose of the crank vent going to the airbox is for emissions, runs the blow-by gases back into the combustion chamber to be burned instead of just venting to the atmosphere.
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