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    300/440/550 '87 JS300 to JS440 engine swap

    Ok final diagnosis: No fuel to carb. because cyl#1 (front cylinder, where fuel pump gets its pulse pressure from) wiped out. 60psi in relation to the 145 it had been weeks prior. Tore down the motor... jug is scorn, pistons and rings FUBAR, and metal shaving in the bottom end. Best i can tell...
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    300/440/550 Hey, new JS550 owner here, the starter works, but the engine won't turn over

    I would remove the flywheel inspection plug and check to see if the flywheel itself is spinning when you work the starter button. It is possible that the starter is engaging to the flywheel but the the flywheel key is sheared. That will prevent the engine from spinning over.
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    300/440/550 '87 JS300 to JS440 engine swap

    Ok another update on the StoopidSki: Round 1= TKO epic failure. Ski ran for a grand total of 10mins in the water. 9mins and 30 seconds putting out past the no wake zone. Got to the point that i could hammer down and she ran like a raped ape for another 30sec. at 3/4 to WOT an then she died and...
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    300/440/550 '87 JS300 to JS440 engine swap

    Update on the project... * Engine installed/ alignment set, and i found a westcoast water box to fit with the full westcoast pipe. * full system completely plumed with a primer kit * JS550 ebox with rev-limit function capped off * BN44 carb set up with K&N filter. (and yes BN carb because...
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    300/440/550 Hull material/paint

    I am looking to paint a 1987 js300 hull (bottom half only at this time) what is the hull made of? ive heard a sheet molded compound? if so what is that plastic? also what kind of paint should be used when spraying that material or whatever the hull is actually made out of. any and all help...
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    300/440/550 my neverending headaches

    Looks like ur having load of fun thus far lol. keep up the work tho it's looking good.
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    300/440/550 '87 JS300 to JS440 engine swap

    There are no extra pieces. t-bones pic... yea dont have those parts. never came out of the ski. just the brace against the "firewall" and the mount for the driveshaft bearing support that is mounted to the bottom
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    300/440/550 '87 JS300 to JS440 engine swap

    a bulkhead repair kit huh? never heard of such a thing lol, can u get a pic of what im missing? cause what you see (attached to the bulkhead an attached to the bottom of the bilge) is all i got , just curious to know. Is this hull worth messing with since you say the hull is cracked. i dont...
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    300/440/550 550 fuel capacity

    I've got a js300 tank which is roughly the same and yea 3 to 3.5 gal is about what i get in it from empty. a little more when you tip the nose up when filling.
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    300/440/550 JS 440 Build

    Progress Post surgery lol
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    300/440/550 '78 440/650 Build

    sounds like a sweet project. looking forward to see the progress.
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    JS 440 Deck crack

    thats kinda what i was thinkin lol
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    300/440/550 '87 JS300 to JS440 engine swap

    hull/bearing support Also does anyone know who would have made a hull/bearing support like this? It was in the hull when i got the ski. didnt know if it was an home made jobby or a actually aftermarket set up.
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    300/440/550 '87 JS300 to JS440 engine swap

    OK there was some question on whether it was a 440 or 550 engine (440 bottom/550 top). so heres the pics.. tell me what i got lol
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    300/440/550 '87 JS300 to JS440 engine swap

    Gotcha lol, yea i was just curious had an issue with new motor mounts stipping out under torque.
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    300/440/550 JS 440 Build

    removing damaged deck an fire extinguisher holder... will work on widing the gunnels next
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    300/440/550 JS 440 Build

    Had an issue with my deck cracking so i thought what better time to gut the hull and do some major modifications. will post more pics as i get them ...
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    JS 440 Deck crack

    My '87 js 440 deck crack... oops lol ! look like a great time for some major modifications
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