Hello fellow I boaters. What I have is a 1985 bayliner capri with omc 5.0 liter with a 800 series out drive with a quadrajet 4 bbl carb.
Last trip out to the lake every thing was great until I was pulling a skier at 30 mph and 4000 rpm and the boat engine just cut out like some one turned the key off. It started right back up and idled like normal. I pulled the skier in and we took off to shore to check the boat. The temp was normal at 160 the gas tank was full and the battery connections were tight so I set out for a test drive. the boat will plain well and start to get up to speed at wot and then at 4000 rpm will fall on it's face, but this time I pulled back on the throttle real fast and it cought it self and went back to idle.
So I put the boat on the trailor to take it home and check thing's out later.
Since this has happend I used the search function and found the fuel system test by another member good stuff there. So I have replaced the water fuel separator which I always do the year before while I winterize the boat. I have replaced the filter in the front off the carb which i usaully replace every hundred hours. I have also check the tank pick up which does not have a screen on it for some reason. I also checked the anti syphon valve.
One question is, the anti syphon valve sapposed to be a little hard to blow thru because of the check ball in them? Mine has some resistance.
Iam pretty sure this is a fuel problem and Iam a just trying to get some advice from the pro's.
One other problem I found this year while boating , this was the first trip out this summer, the cutting out happend the fourth time
was that it has developed a stumble when I give it wot from off idle it sound's like the the secondaries are opening and then away we go like a bad accelerator pump.
do you guy's think since my fuel system up to the carb is good that this could be just my carb starting to act up? Time for a rebuild? Thank's in advance for any help Jered