external fuel screw on P pumps June 02, 2010 12:01PM
on the external fuel screw is turning it left more fuel or less? is one turn 100 ccs? thanks

Re: external fuel screw on P pumps June 02, 2010 11:08PM
Loosen=less
Tighten=more
If its a CDS pump 1/2 turn = 50 cc

Re: external fuel screw on P pumps June 03, 2010 01:03AM
will it vary from builder to builder how many cc's per turn you will get?

Re: external fuel screw on P pumps June 03, 2010 02:44AM
I would expect it to vary depending upon plunger size & possibly cam design. Your pump builder should be able to tell you for your specific pump.

Re: external fuel screw on P pumps June 03, 2010 02:45AM
how do you get oil in before mounting. pump shop said add a quart, but where?

Re: external fuel screw on P pumps June 03, 2010 04:06AM
take the primer pump blockoff plate off ,tilt pump 45 degrees and fill then add a pint to the govener box thru the oil cap on top

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