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  1. Replies
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    bumping this post back up, anybody have more...

    bumping this post back up, anybody have more information on this ecm reflash
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    most tunes are 91 safe as that is the most octane...

    most tunes are 91 safe as that is the most octane you can get in Ca. So 93 offers even more protection. I would only use octane booster when 87 or 89 is all you can get. Replace you plugs and stay...
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    No need for octane boosters , can you not get 93...

    No need for octane boosters , can you not get 93 octane gas? most tunes are safe with 93 octane and up to 18 psi of boost, If you need more try a mixture of race gas and 93 octane gas.
  4. To check the valves for being bent , use a...

    To check the valves for being bent , use a cylinder leak checker (compressed air in each cyl. with valves closed) and see if any valves are bent, this way you will know it the head has to come off...
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    remove injectors and have them cleaned and tested...

    remove injectors and have them cleaned and tested for possible leaking fuel when the engine is off. sounds like they are leaking when off and the engine is flooded on the restart. Or the ecm is...
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    check the water coming out of the oil cooler...

    check the water coming out of the oil cooler pisser exit (left side of ski) for possible oil mixed in the water, you might have a defective oil cooler .
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    Based on the information you have posted I bet...

    Based on the information you have posted I bet the 17 will fall short on reaching 7500 to 7600 rpms. A 16 pitch will be closer to meeting your desired final max rpms. Please post your final pitch...
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    a two pitch change on the trailing edge should...

    a two pitch change on the trailing edge should give you 300 to 350 more rpms. Do you think this 300+ rpms will be enough for you? what is your max rpms you have now at full throttle on smooth water...
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    threebond should work ok also, be sure surfaces...

    threebond should work ok also, be sure surfaces are clean of any oil, i use laquier thinner
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    a additave called " seafoam " works good also.

    a additave called " seafoam " works good also.
  11. if you still want one after reading Jerry's post...

    if you still want one after reading Jerry's post take the cone to a auto parts store ( O riley's, advance, auto zone) they usually have a assortment of them they can match up to the groove in the cone
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    I have a friend in Fla. that bought a used stock...

    I have a friend in Fla. that bought a used stock 2016 fx svho 69 mph stock, then he did these mods, air filter, jims cut ride plate, TJ exhaust mod, solas prop, remove the spray on the back, ribbon...
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    Thanks, that is a couple of years old seadoo...

    Thanks, that is a couple of years old seadoo info, I see they now do yamaha ecu's also now. Just wondering if anyone here on the forum with a yamaha has used them,
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    ecu re prograhaming question?

    Has anyone ever used or know anything about www.racelabperformance.com for ecu re prograhaming service?
  15. get some aftermarket sponsons and try then first.

    get some aftermarket sponsons and try then first.
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    481

    This will also help with the brake in of your new...

    This will also help with the brake in of your new parts, try not to run your ski at full throttle for the next tank of gas give the engine some brake in time.
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    glad you found the problem, your motor should be...

    glad you found the problem, your motor should be just fine. You might want to add some extra 2 stroke oil in your next tank of fuel to provide a little extra lubrication to slick the crank and...
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    481

    for some reason i thought you were working on a...

    for some reason i thought you were working on a gpr 1200 motor. now that i see this is a 2 cyl motor i am not sure the forum information is correct. How ever is is very easy to get the head gasket...
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    use a air hose to blow out the crank real good....

    use a air hose to blow out the crank real good. then oil up the rod and side bearings with 2 stroke oil then re assemble engine and you should be good.
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    if you have water in sparkplug holes it is a base...

    if you have water in sparkplug holes it is a base gasket problem more than likely. they are on wrong.
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    481

    check the black plastic piece that feeds water to...

    check the black plastic piece that feeds water to the metal exhaust manifold I have seen them crack and leak lots of water into the hull.
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    those lines appear to be casting slag lines and...

    those lines appear to be casting slag lines and not cracks. Take some 250 to 300 grit sand paper and sand the entire grate REAL GOOD by hand and you will see those lines will be gone. If after hand...
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    The correct deka battery is ETX16L for your...

    The correct deka battery is ETX16L for your ski. the difference is the plus and neg. post are reversed on a ETX16 and a ETX16L You can use the ETX16 as most yamaha have long enough cables to...
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    Take the battery out and look at the battery case...

    Take the battery out and look at the battery case there are two fluid level lines on the battery min. and max. I bet the fluid level is still well above the max. line even though you have lost acid...
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    the trim helps some when trimmed for bow up, keep...

    the trim helps some when trimmed for bow up, keep most of your extra storage items in the back if the ski and a empty front compartment, shift your body weight to the rear of the seat as best as you...
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