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  1. #1
    THE PLATE MAN JIM'S PERFORMANCE's Avatar
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    how many hours on a ported 1390

    Just wondering how many hours everyone has that owns a ported 1390.
    On my 1390 ported i had some issues in the beginning that i straightened out, But since then i just checked my notes with the hours today and i have put 64 hours on the motor and 3/4 of that time is very hard hours. And knock on wood compression and the way the motor runs is still great. I am running 170 PSI. on the compression and 42 thousands squish with a 3 degree key way.
    Last edited by JIM'S PERFORMANCE; 05-11-2008 at 07:07 PM.


  2. #2
    BLACK MAGIC HEADERS hydrojunkie's Avatar
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    i have 601 hours on my ski. ooopppsss thats your ski. hey bud. just wanted to say hi

  3. #3
    Moderator OsideBill's Avatar
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    0 hours and not an issue so far

  4. #4
    Bryan K's Avatar
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    I just hit 17 hours on mine and it's running better every time out. I'm having less issues now than when it was an unported 1300

  5. #5
    Mine is in the 60 something area also... Zero issues since day 1

  6. #6

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    Jim, thats how you kicked my azz at last years mudbug. You had a 1390. Just playn. That was fun. I hope to see you this year so we can ride again. No I don't have a 1390, but my 1300 is finally running better. Best wishes.

    Brian

  7. #7
    alex29573's Avatar
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    what kind of issues are you guys having at first?

  8. #8
    dhoad's Avatar
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    Quote Originally Posted by alex sanjenis View Post
    what kind of issues are you guys having at first?
    tuning is the main issue. motor needs lotsa fuel

  9. #9
    THE PLATE MAN JIM'S PERFORMANCE's Avatar
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    Quote Originally Posted by alex sanjenis View Post
    what kind of issues are you guys having at first?
    In my case it was not enough clearance on the pistons, Once i set the cylinder to piston clearance up at 8 thousands then i had no more problems.

  10. #10
    Mik72e's Avatar
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    My Lowell BB1390 is still running with its new owner its done around 50hrs now still going strong.

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