Coffman 750 xi zxi ss exhaust/manifold/Waterbox - Page 2
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  1. #11
    PWCToday Newbie
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    Re: Coffman 750 xi zxi ss exhaust/manifold/Waterbox

    Quote Originally Posted by Austin1goss View Post
    I used a stock 750 4 bolt manifold on my Coffman pipe. Hard part was figuring out if you needed a oval or round hole manifold there all over ebay especially the oval hole one. Think I've got a few of them sitting around
    Hey thanks for the reply. I finally found a 4bolt coffman manifold and its going on the ski. I had to purchase the whole pipe setup though so i'll still need another mani for the jetmate 750swap. I appreciate you letting me know the stock 4 bolt round hole mani fits. I have seen a couple of them on ebay but wasnt sure. I'll make sure to pick one up.

    Did you bore out the hole or anything or did they size up ok?

  2. #12
    PWCToday Newbie
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    Re: Coffman 750 xi zxi ss exhaust/manifold/Waterbox

    Quote Originally Posted by Austin1goss View Post
    Also this post was from 2013
    yea theres always a chance!

  3. #13
    PWCToday Guru
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    Re: Coffman 750 xi zxi ss exhaust/manifold/Waterbox

    Quote Originally Posted by dabomb5756 View Post
    Hey thanks for the reply. I finally found a 4bolt coffman manifold and its going on the ski. I had to purchase the whole pipe setup though so i'll still need another mani for the jetmate 750swap. I appreciate you letting me know the stock 4 bolt round hole mani fits. I have seen a couple of them on ebay but wasnt sure. I'll make sure to pick one up.

    Did you bore out the hole or anything or did they size up ok?
    I just opened up the ports enough to match the OEM size gaskets but yes they all looked to be about the same size I believe its 42mm.

  4. #14
    Frequent Poster nebraska650's Avatar
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    Re: Coffman 750 xi zxi ss exhaust/manifold/Waterbox

    There’s a round 4 bolt mani on fleabay now.
    1986 300- Kerker / SBN / Solas
    1989 SX - SP / Coffman / SXR
    1991 SX - Coffman / Solas
    1994 TS - OP Ride Plate / Solas
    1996 ZXi 1100 - Stock


  5. #15
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    Re: Coffman 750 xi zxi ss exhaust/manifold/Waterbox

    Quote Originally Posted by nebraska650 View Post
    There’s a round 4 bolt mani on fleabay now.
    Whoo doggy, $250 shipped. Thats a bit pricey in my opinion.

  6. #16
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    Re: Coffman 750 xi zxi ss exhaust/manifold/Waterbox

    Quote Originally Posted by Austin1goss View Post
    I just opened up the ports enough to match the OEM size gaskets but yes they all looked to be about the same size I believe its 42mm.
    This is what you used, correct?
    https://www.ebay.com/itm/U48-Kawasak...1/254449688994

  7. #17
    PWCToday Guru
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    Re: Coffman 750 xi zxi ss exhaust/manifold/Waterbox

    Quote Originally Posted by dabomb5756 View Post
    Looks right to me

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