Fuel Primer kit! YES or NO??
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  1. #1
    PWCToday Newbie GarryG's Avatar
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    Fuel Primer kit! YES or NO??

    Was looking at some threads on easier starting of older skis ('99 Waverunner XL760), and one option was to fit a Fuel primer kit instead of having the choke assembly. I have since bought the kit, but reading some other threads, the fitting of these may cause other issues.

    When cold, my ski may take 5 or 6 goes to start, but then no other issues for the rest of the day. So questions are....

    Would you fit the primer kit?
    Is there another way to fit the kit and keep the choke system?

    Cheers

  2. #2
    PWCToday.com Is My Home Away From Home Cleatusjo's Avatar
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    Re: Fuel Primer kit! YES or NO??

    You can mount the primer fitting into the bottom of your flame arrester next to the neck of the carb.
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  3. #3
    PWCToday.com Is My Home Away From Home Myself's Avatar
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    Re: Fuel Primer kit! YES or NO??

    I would rebuild or clean and tune the carbs so it starts like it should.
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  4. #4
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    Re: Fuel Primer kit! YES or NO??

    I agree on fresh carbs and tune. What is the compression numbers. We dealt with a lot of starting issues at out 5000 feet of elevation. We used to cut Yamaha heads and 1100 Kawi heads right out of the crate to get them up in the 150/160 range. It made a huge diffeence on starting. Most of the Yamaha's and Kawis would only blow in the 120 range when new. Primer kits are often used as a band-aid for other issues. When was the last time the engine was refreshed? If you do tear it apart look close at the sleeves on the exhaust side. Have seen quite a few 760's cracked over the years.
    Last edited by x2crew; 06-11-2018 at 01:22 AM.

  5. #5
    PWCToday.com Is My Home Away From Home john zigler's Avatar
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    Re: Fuel Primer kit! YES or NO??

    A primer kit is intended as a performance upgrade. By removing the choke plates and installing a primer, you are increasing air flow.

    I agree with above, you need to address what is wrong for your hard start. Yamaha's when tuned properly are typically easy to start.
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  6. #6
    PWCToday Newbie GarryG's Avatar
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    Re: Fuel Primer kit! YES or NO??

    Thanks for the feedback. At the last service the compression was tested at 140/150, so not too bad for an old Ski.

    I might add the primer to the old Oil injection nipples and keep the choke assembly intact and have both options??

    Cheers

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