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Jet Boats
General Jet Boat Discussions
Jack Plates and Outboard Jets
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<blockquote data-quote="Kawriverrat" data-source="post: 124620" data-attributes="member: 2531"><p>First question is do you presently have a splash plate? </p><p> </p><p> On certain boats & situations jack plates can be of some benefit on an OB jet. If not set up right they can make the issue you describe worse.</p><p>Another issue is the setback that most all jack plates have. Most will set your motor back at least 5" from the transom. This can, most of the time be dealt with by extending your splash plate & using intake fins.</p><p></p><p>A friend of mine who runs nothing but flat bottom boats with jets likes this one https://www.powrtran.com/cgi-bin/cart/showdetails.cgi?parts_id=9662 </p><p>He runs his boat on lakes & most times wont swap back to a prop drive. Even though this jack plate has plenty range of movement to make the swap.</p><p></p><p>When running long distances he just raises it up until it begins to cavitate then just lowers his OB a bit from that point.</p></blockquote><p></p>
[QUOTE="Kawriverrat, post: 124620, member: 2531"] First question is do you presently have a splash plate? On certain boats & situations jack plates can be of some benefit on an OB jet. If not set up right they can make the issue you describe worse. Another issue is the setback that most all jack plates have. Most will set your motor back at least 5" from the transom. This can, most of the time be dealt with by extending your splash plate & using intake fins. A friend of mine who runs nothing but flat bottom boats with jets likes this one https://www.powrtran.com/cgi-bin/cart/showdetails.cgi?parts_id=9662 He runs his boat on lakes & most times wont swap back to a prop drive. Even though this jack plate has plenty range of movement to make the swap. When running long distances he just raises it up until it begins to cavitate then just lowers his OB a bit from that point. [/QUOTE]
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