SoCal Jet Boats

Tech Talk => Engine Mechanical / Electrical => Topic started by: iloveitloud on June 11, 2019, 06:38:03 PM

Title: Bad idle, and down 500 rpm at WOT
Post by: iloveitloud on June 11, 2019, 06:38:03 PM

I have a bad cold idle, and am down about 500rpm, and 10mph at WOT. I do not have a check valve on my Holley 750carb, and have had this issue before, but always had a friend that recently passed on take care of my carb...so I just dropped it off, and got it back- never knowing what was done to it.
Do these symptoms seem like something a blown power valve would cause?
No other changes have been made to the boat.

Title: Re: Bad idle, and down 500 rpm at WOT
Post by: mash on it on June 12, 2019, 08:53:51 AM

Very possible.

Also check out the mechanical advance weights in the distributor, and not froze/rusted.

Dan'l