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General Jet Boat Discussions
Jetjon motor location?
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<blockquote data-quote="PSG-1" data-source="post: 352436" data-attributes="member: 6937"><p>For the most part, your pump will be completely submerged at static flow. The Yamaha XL1200 pump is about 8" in diameter, so, that should give you an idea for the inset needed. Remember that when you are on plane, virtually none of the pump is in the water, it is just skimming the surface.</p><p></p><p>However, if you are fabricating an aluminum tunnel for the pump to bolt into, I would recommend making your tunnel a little wider, and taller than your pump, to give you enough room for all your hoses and cables, as well as routing your exhaust into the tunnel. Routing the exhaust into the tunnel, and then using some rubber skirting trimmed to fit around the nozzle (take a look at a Yamaha 4 stroke wave runner to see an example) will tremendously cut down on the sound signature of your boat.</p></blockquote><p></p>
[QUOTE="PSG-1, post: 352436, member: 6937"] For the most part, your pump will be completely submerged at static flow. The Yamaha XL1200 pump is about 8" in diameter, so, that should give you an idea for the inset needed. Remember that when you are on plane, virtually none of the pump is in the water, it is just skimming the surface. However, if you are fabricating an aluminum tunnel for the pump to bolt into, I would recommend making your tunnel a little wider, and taller than your pump, to give you enough room for all your hoses and cables, as well as routing your exhaust into the tunnel. Routing the exhaust into the tunnel, and then using some rubber skirting trimmed to fit around the nozzle (take a look at a Yamaha 4 stroke wave runner to see an example) will tremendously cut down on the sound signature of your boat. [/QUOTE]
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Jetjon motor location?
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