Posted by S. Bear on Wednesday, April 07, 2004 at 7:09PM :
In Reply to: OT-Fire Pump posted by HWooldridge on Wednesday, April 07, 2004 at 1:20AM :
That the valve you are operating is a discharge valve and not a manual primer? On many smaller pumps the primer will pull down the engine RPM and may be causing the problem..
Just a thought.