Straight cooling fitting for 650 head
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  1. #1
    PWCToday Regular
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    Straight cooling fitting for 650 head

    Iím looking for a straight fitting for the cooling ling that goes from the head to the exhaust head pipe. Currently the mariner head I have on the 650sx Iím working on has a 90 fitting and I just donít like how it bends the cooling line.

  2. #2
    Top Dog ericmorrill's Avatar
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    Re: Straight cooling fitting for 650 head

    I have some so does every hardware store

  3. #3
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    Re: Straight cooling fitting for 650 head

    Quote Originally Posted by ericmorrill View Post
    I have some so does every hardware store
    I thought I had found one at the local ACE Hardware 1/8” thread, but the thread was slightly different than the head. Is it metric thread?

  4. #4
    Frequent Poster dvmain02's Avatar
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    Re: Straight cooling fitting for 650 head

    It is metric, you may have to drill and tap to go ase, I have one or ten if you still need

  5. #5
    PWCToday.com Is My Home Away From Home BLRider's Avatar
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    Re: Straight cooling fitting for 650 head

    Quote Originally Posted by roush611 View Post
    I thought I had found one at the local ACE Hardware 1/8” thread, but the thread was slightly different than the head. Is it metric thread?
    The 1/8"NPT thread isnt metric but it is tapered. The hardware store ones are the way to go.
    Never argue with an idiot, they will drag you down to their level then beat you with experience.

  6. #6
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    Re: Straight cooling fitting for 650 head

    Quote Originally Posted by BLRider View Post
    The 1/8"NPT thread isnt metric but it is tapered. The hardware store ones are the way to go.
    So 1/8 thread is fine? Just keep tightening when it binds?

  7. #7
    Resident Guru sportsfreak29's Avatar
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    Re: Straight cooling fitting for 650 head

    I have a few with the flush line connector and cover.
    If you're not crashing, then you're not trying!!!

    '90 650sx, full mod with all the bells and whistles.
    '84 JS550/650 pump swap with Viper 9000 motor.
    '93 550sx with a 650sx motor and Rhass pump kit.
    '81 JS440, full mod 550 PP motor. '
    '93 300sx/750 SP BOB.

    Special thanks to Chris Newmiller, the guys at Prowatercraft Racing, Rhaas Products, and Mitchell at M&M Marine!

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