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Gents, I have the above with freeze damaged exhaust manifolds. I need to replace both, and if I'm going that deep, I want to change Spark Plugs as well. This motor appears to have been assembled into an aluminum frame/box, and then welded into the middle Pontoon of this boat. There is only about...

I had the same problem, my root cause was the rubber seal I replaced on my flip up gas fill cap. It was too thick and would not allow the tank to vent, on my boat this is the only way to vent the fuel, for now. I went with a 1/16" rubber disc instead of a 3/16" and the problem went away. Mine...

Yes, too cold of an engine temp and you have incomplete combustion, engine/carb tuning issues, resulting in poor performance and as mentioned above, advanced carbon build up of internal combustion parts.

Also, this thread.... http://www.riverdavesplace.com/forums/f31/water-bypass-diagram-t17471

I followed this guys advice four years ago as I was not able to make decent temp up here in Alaska. Read through the information, he makes good points about a full volume of water in your engine and also the water flow and pressure pitfalls most experience after swapping logs to headers...

A little big yes, but when I bought it I had plans for the motor. Now not so much, I'm just down for the cruising aspect, not so much the racing anymore. Seems the high fuel prices of the last 8 or so years has made alot of my potential "competition" park their boats in favor of PWC.

...go for it. And even though I'm not a tree hugger, but just a cheap-a$$, I have a vehicle that runs on Waste Vegetable Oil. I have over 14,000 miles on WVO in a 1983 Mercedes Benz 300SD. I've tweaked the turbo, eliminated the EGR, raised the fuel controller output (all mechanical) and...

Well the temp swings pretty far, any where from 160-185, depending on jet flow. I like the idea of the oil temp gauge. I did not check the plugs, as you mentioned the fuel distribution varies form cylinder group to cylinder group. But I didn't think of reading both groups and averaging...

Thanks again for your response, and laying it out in terms I can comprehend. I emailed BG Tech and they stated empahtically, don't worry about the jets, no mention on the PV, but I should match the pump cams and cam position, and also set the transfer slots equal. This week I will do the...

Thanks for your response Chris. First off, I'll admit that the only problem was the fact that I never dialed the carb in till last week. I added a electric fuel pump and regulator and then was ready to eliminate more variables. Adding the 1:1 prompted me to start from beginning, returning...

Greetings. I have a 1976 Hawaiian Jet Boat, powered by a Ford 460, (8.5:1), unknown cam, with a complete MSD Ignition, Barry Grant Mighty Demon 850, on top of an Offenhasuer 360 Tunnel Ram with a single carburetor top plate, breathing through Basset Classic, long collector headers with a...

Here is the most recent image of my ride. Main colors are original, pin striping was added in 1995. The boat came with a 429, Offenhauser intake, and log style, through transom manifolds.

CLEAN SWEEP! The first ever, fully successful, first dip. I installed the engine, backed into the lake, a little cranking, and the sweet satisfying sound of Four Cycle Thunder. No major problems, no oops I forgot that, well, a few drips, but I tightened some fittings and we're good to go...

Balls, no balls to be found after taking a dip, you want shrinkage, we got it!!! Of course there are those nut jobs that will go on the lake in early May, but we wear drysuits that early, going to wetsuits and shorty's when it gets warmer. The lake will warm up by the end of this month. The...

Pools of melt water in the icebergs........;) I run at Big Lake, where I also live. It is a State Recreation Site, Jetskis, Speed Boats, Fishing, Sailing, diving,, water skiing, wake boarding, and a lot...I mean a lot of float planes. We all use the lake, and for the most part, get along...

Truly there is. Unfortunately, I would say there is more iron in back yards than on the water. I tried to get a club going up here a few years back , The Alaska Power Boat Race Association, just to get guys to get their hulks back together. We had two races one summer and I went another...

20W-50

@Randall, no pictures of the V, I can take some, but it is a sad sight, I need to run new stringers and lay it up again. But, the original paint job is tits. It was owned by a profesional painter, one of the best in the State of Alaska, and he really laid it down. Some say its' gawdy, (it is...

Hey Daytona, nice runs. That really looks great. Definite motivation to complete my install. What Size tube did you you use , and for what components?

Thanks, good advice all. Tom, sure you can help me out, get me a sweet discount on an American Turbine Upgrade Kit for My little Jacuzzi 12YJ. :D I have balanced it (on an IRD Balancer) and pulled t it as tight as I should go .007" at the wear ring, this is a tight, smooth little pump...