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  1. #1

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    Jul 2006
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    1300r PV cylinders on a 1200r bottem end

    First off guys im sorry as I feel this has most likely be discussed before but after 10 min of searching I can't find anything on it. The situation I'm facing is I just picked up a xr1800 with 1 bad motor. I am going to go with SBT and swap the core for a new motor however I was considering seeing if I could get a 1300 and then just put a 1300 top end on the other motor in the boat. Now I'm sorry as i've always had sea-doo skis and am somewhat familiar with yamahas however I was just wanting to know if anything else would be needed to go from a 1200 to 1300 and any problems that may occure. I know along with this I would have to re-jet but other than that is there any issues with intake or exhaust? Thanks


  2. #2

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    Apr 2006
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    Bolts right on. You will need a 1300 head of course. Need rejet and maybe repitch the prop.

  3. #3

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    Jul 2006
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    Indian Lake Ohio
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    Ok great, I suspect the powervalves are different or are they not? Thanks alot.

  4. #4

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    Quote Originally Posted by Lake rat RXP View Post
    Ok great, I suspect the powervalves are different or are they not? Thanks alot.
    If your putting 1300 cylinders on, it would be best to use the powervalves that comes with them.

    You can use the 1200 valves, but they need to be clearance or machined to work in the 1300 cylinder.

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