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General Jet Boat Discussions
Bad news...Piston cracked.
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<blockquote data-quote="Ranchero50" data-source="post: 387828" data-attributes="member: 1523"><p>Before you spend any money on this thing pop over to PWCtoday and ask those guys on the Seadoo sub forum what they would do. The Seadoo oil injection system works really well and is simple to set up. Guys do away with it, bugger the mixture and grenade the engine when it overheats. Running premix is going to lean your mixture out right away (because the oil lessens the amount of fuel flowing through the jets). </p><p></p><p><strong>You did up your jets and do all the ignition chops at different RPM / loads so you could check the plugs to see how the carbs are fueling right?</strong></p><p></p><p>What I see happening with your build is you'll toss money at it and it'll grenade again because the bottom end is wounded. Read about it many times while I was working through the bugs on mine.</p><p></p><p>https://www.shopsbt.com/sea-1995-xp/sea-doo-engine-717-720-xp-spx-hx-gti-gsi-gs-sp-gts.html</p><p></p><p>It really isn't expensive until you do it twice...</p><p><img src="https://www.shopsbt.com/mm5/graphics/00000001/40-105f_2.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="Ranchero50, post: 387828, member: 1523"] Before you spend any money on this thing pop over to PWCtoday and ask those guys on the Seadoo sub forum what they would do. The Seadoo oil injection system works really well and is simple to set up. Guys do away with it, bugger the mixture and grenade the engine when it overheats. Running premix is going to lean your mixture out right away (because the oil lessens the amount of fuel flowing through the jets). [b]You did up your jets and do all the ignition chops at different RPM / loads so you could check the plugs to see how the carbs are fueling right?[/b] What I see happening with your build is you'll toss money at it and it'll grenade again because the bottom end is wounded. Read about it many times while I was working through the bugs on mine. https://www.shopsbt.com/sea-1995-xp/sea-doo-engine-717-720-xp-spx-hx-gti-gsi-gs-sp-gts.html It really isn't expensive until you do it twice... [img]https://www.shopsbt.com/mm5/graphics/00000001/40-105f_2.jpg[/img] [/QUOTE]
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Jet Boats
General Jet Boat Discussions
Bad news...Piston cracked.
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