Reply To: Johnson QD fuel consumption

[JACQUES]

the crankcase  drain channels  diverts crankcase juice to the purge valve and out the back end… not certain  using the air nipple would do it properly since  it sits above the purge valve.   The  resulting loss of  pressure normally built up in a two line tank  would also  reduce crankcase pressure possibly affecting engine performance …which is why we plug it  in the first place .

I tried  finding a utube on it and did a search here to no avail.  May have been an OUTBOARDER article  some time ago ??   can’t recall.  it basically involved blocking the purge drain   and adapting a cover/nipple on the purge  then sending juices back to a bottle.. juices build up at lower speed … at high rpms  the  fuel oil mix  does not accumulate so much being  pushed  into the cylinders.

 

up to you… depending on how bad things are… did you try adjusting  the carb .  both cylinders  working  properly all at speeds ???

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