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Jet Boats
General Jet Boat Discussions
outboard jet rigging question.
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<blockquote data-quote="dhoganjr" data-source="post: 355711" data-attributes="member: 12925"><p>The farther away the shoe or foot is from the hull, the harder it is to get the height set correctly. The cleanest water is where it exits the hull, after that it starts rising and gets more turbulent. I have never used a jackplate, but guessing with that much setback you will need more height. I think the water will go over the lip causing it to drag in the water slowing you down and creating back splash. You're best bet would be to build a riser on the transom raising the jet to the correct height. </p><p></p><p>At this point, since you already have it mounted, take it for a test run as soon as you can. You can then decide what you want to do from there. It may run ok as is, I always tell people every hull is different even from the same manufacturer, what works on one will not on the next.</p><p></p><p>You are correct with using the straight edge to determine the mounting height. Usually lining it up with the front pin on the grates with the engine trimmed all the way down or tucked under is near the best position. From there it is usually within 1/4 to 1/2 inch either way.</p><p></p><p>Let us know how it goes!!!</p></blockquote><p></p>
[QUOTE="dhoganjr, post: 355711, member: 12925"] The farther away the shoe or foot is from the hull, the harder it is to get the height set correctly. The cleanest water is where it exits the hull, after that it starts rising and gets more turbulent. I have never used a jackplate, but guessing with that much setback you will need more height. I think the water will go over the lip causing it to drag in the water slowing you down and creating back splash. You're best bet would be to build a riser on the transom raising the jet to the correct height. At this point, since you already have it mounted, take it for a test run as soon as you can. You can then decide what you want to do from there. It may run ok as is, I always tell people every hull is different even from the same manufacturer, what works on one will not on the next. You are correct with using the straight edge to determine the mounting height. Usually lining it up with the front pin on the grates with the engine trimmed all the way down or tucked under is near the best position. From there it is usually within 1/4 to 1/2 inch either way. Let us know how it goes!!! [/QUOTE]
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Jet Boats
General Jet Boat Discussions
outboard jet rigging question.
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