Vapor lock?

[kmelford]

Thanks Joe. Sounds like it's a recommended check regarding the white/blk wire just in case.

[JOE54]

yes sir it is

[kmelford]

[kmelford]

Update: I was on the water on Monday and experienced the issue only during the 1st and 2nd run of the day. After that it ran fine. I did primer the system before each start. Last time I only had the issue on the 1st run of the day.

Any new ideas or suggestions?

[JOE54]

wish you could have had a fuel psi gauge set up on it when it did this to confirm that fuel psi is dropping when this occurs

[TKress]

I had an issue with starting while moving between fishing holes a couple years back. Ended up being a piece of leaf debris in the bilge fuel filter/water separator. Make sure you do not overlook the simple things. That filter is now gone and I always change out the one on the motor when I winterize.

[JOE54]

^^^^^^^ smart man indeed

[kmelford]

Thanks Todd. I don't have an inline fuel filter and have changed out everything from the tank to the mechanical fuel filter which I have rebuilt 3 times. I'm thinking you may be right about an obstruction but may be in the pick up tube or the anti-siphon valve.

Joe - when I've checked fuel pressure it has been good at idle at home but the connection always leaks. I even tried someone elses and it leaked but the pressure was good. What size or coupling do I need? I want to make sure I have the right one before going on the water to check.

Thanks

[JOE54]

both my fuel psi testers have same fitting for Schrader valve connection so it should be standard to all testers exact size im not sure

[lpugh]

It is a ford adaptor; all are the same just avoid the cheap ones and be sure it has the right connector for your hose.
recommend OTC adaptors: seals last longer.

[kmelford]

Thanks for the info. I haven't had time to check the pressure again or do anything to the boat yet.

But I did fish in a tournament on Saturday and I had no issues. Very weird. I did fill up the fuel tank that morning. When I have time I'm plan to check the gas tank vents (two separate hoses, on from each side of the tank going to a vent hole). After that I will move to the anti-siphon valve and the pick up tube. If things don't improve after that I will disconnect the idle stabilizer and re-time the engine.

I will keep my eye out for any additional guidance and keep you posted. Thank you again.

[JOE54]

did you use better quality fuel or different brand than in the past , do report back this helps us all

[kmelford]

I used the middle grade fuel (89). I recall using the lower grade prior to that (87). Sounds like I should stick with 89?

[JOE54]

some brands of fuel can be a killer as well

[kmelford]

Good to know

[lpugh]

Make sure the trigger advance lever is not being restricted in any and verify full travel. If that arm does not advance the timing your not going anywhere fast.

[kmelford]

Thanks Leon. I recall checking that before but will check again. I still haven't had time to check the vent hoses, pick up tube and anti-siphon valve yet. Hopefully in a couple of weeks. Thanks again

[JOE54]

check that trigger movement when its cold sometimes the arm will not move as freely due to grease or stiff wiring on trigger harness

[kmelford]

Thanks Joe. Will do

[JOE54]