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Jet Boats
General Jet Boat Discussions
Need some help with my outboard jet, Mounting height, Spray
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<blockquote data-quote="Backroads" data-source="post: 358022" data-attributes="member: 14396"><p>Ok guys, I'm in need of a little help and advice. I'll try to make this as simple and short as I can.</p><p></p><p>Just put this yamaha 40/28 jet on the back of my tracker 1648 grizzly. I had an older transom riser which wasnt enough, the leading edge of my foot was about 1/4 + below the bottom of my boat. While it ran good, it had a ton of backspray and just felt like it was dragging the rear end. </p><p></p><p>So I had a new riser made up to my specs, made to raise the motor up to be a little higher. Turned out the leading edge of my foot is just above the bottom of the boat now (as checked with a level straight edge) 1/4" maybe a tad more. I'm STILL getting crazy splash back, and still feels like I'm just dragging butt through the water.</p><p></p><p>I understand a splash plate will control splash, got that. I just feel like theres more to it to eliminate the problem before covering it up. My previous Mercury 25 4 stroke jet, never had this problem, apparently I nailed it first guess at install.</p><p></p><p>Now I went from a tiller with the 25, to a forward mounted console on the yamaha. Heres a picture of where the current setting is</p><p></p><p><img src="https://i413.photobucket.com/albums/pp218/BackroadsXJ/7C7F7FE2-512C-4FDE-96ED-88DD9935D98A_zpsngouahx6.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>That is with the motor tucked all the way down as well.</p><p></p><p>Heres a short video I took this morning showing how much its spraying.</p><p></p><p>https://www.youtube.com/watch?v=OWVO2fvBGt8</p><p></p><p>I got a trip planned for the weekend, was hoping to get this somewhat figured out by then! Hope you guys can help!!THanks!</p></blockquote><p></p>
[QUOTE="Backroads, post: 358022, member: 14396"] Ok guys, I'm in need of a little help and advice. I'll try to make this as simple and short as I can. Just put this yamaha 40/28 jet on the back of my tracker 1648 grizzly. I had an older transom riser which wasnt enough, the leading edge of my foot was about 1/4 + below the bottom of my boat. While it ran good, it had a ton of backspray and just felt like it was dragging the rear end. So I had a new riser made up to my specs, made to raise the motor up to be a little higher. Turned out the leading edge of my foot is just above the bottom of the boat now (as checked with a level straight edge) 1/4" maybe a tad more. I'm STILL getting crazy splash back, and still feels like I'm just dragging butt through the water. I understand a splash plate will control splash, got that. I just feel like theres more to it to eliminate the problem before covering it up. My previous Mercury 25 4 stroke jet, never had this problem, apparently I nailed it first guess at install. Now I went from a tiller with the 25, to a forward mounted console on the yamaha. Heres a picture of where the current setting is [img]https://i413.photobucket.com/albums/pp218/BackroadsXJ/7C7F7FE2-512C-4FDE-96ED-88DD9935D98A_zpsngouahx6.jpg[/img] That is with the motor tucked all the way down as well. Heres a short video I took this morning showing how much its spraying. https://www.youtube.com/watch?v=OWVO2fvBGt8 I got a trip planned for the weekend, was hoping to get this somewhat figured out by then! Hope you guys can help!!THanks! [/QUOTE]
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General Jet Boat Discussions
Need some help with my outboard jet, Mounting height, Spray
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