Join Date: Mar 2007
Location: Rouge Island
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Rep Power: 11
Yep, the outboard primer bulb in the fuel line before the the stage one filter is my advice. Used this on my Yanmar 2QM and wouldn't hessiate to install one my current yanmar.
I bled my 2QM a half dozen times one season after taking on bad fuel, the bulb was a suggetion from a non-boater and it's cheap. Good luck.