Page 1 of 2 1 2 LastLast
Results 1 to 10 of 13

Thread: The BUCK

  1. #1
    GPHOTROD's Avatar
    Join Date
    Apr 2006
    Location
    Dearborn Heights, Mich
    Posts
    65

    The BUCK

    I'll start at the beginning. Last weekend in 90 deg heat I ran a 75.4mph @ 7060 rpm. the ride plate set at 1.030 plate holes not filled, trim tabs shimmed at .120 and it ran flat with no bounce. Looking for more speed shimmed tabs less at .105 and filled plate holes. Went out yesterday 73 deg should be making a little better power still running flat with no bounce until the BUCK almost every time starting 74.5 and up. It didn't happen every time but almost. I did manage to get a couple runs without the Buck a best of 75.8mph @ 7080rpm. I would like to try less shim in the tabs because it was still running flat with no bounce but I have to stop the BUCK.
    Last edited by GPHOTROD; 07-14-2007 at 08:16 AM.


  2. #2
    Happily Self-Employed WFO's Avatar
    Join Date
    Nov 2005
    Location
    Houston, Texas
    Posts
    12,800
    +1
    449
    On the seat or superman ?

  3. #3
    GPHOTROD's Avatar
    Join Date
    Apr 2006
    Location
    Dearborn Heights, Mich
    Posts
    65
    Standing as far back as I can. Back side of the hump.

  4. #4
    Happily Self-Employed WFO's Avatar
    Join Date
    Nov 2005
    Location
    Houston, Texas
    Posts
    12,800
    +1
    449
    Filling the rideplate holes will change the handling, just as raising the trim tabs. Maybe put the tabs back where they were and see how it handles.

    Thats damn fast with a 1200 grate.

  5. #5
    GPHOTROD's Avatar
    Join Date
    Apr 2006
    Location
    Dearborn Heights, Mich
    Posts
    65
    Thanks I'll give it a try. I would try the 800 grate except where we run its more of a drag race. If you lose the hole shot you lose the race, its not long enough. Around 1/4 mile maybe a little longer, I'll have to check.

    Thank Again

    PS thanks on the damn fast.

  6. #6
    Happily Self-Employed WFO's Avatar
    Join Date
    Nov 2005
    Location
    Houston, Texas
    Posts
    12,800
    +1
    449
    You will have to re-adjust everything for the 800 grate.

  7. #7
    GPHOTROD's Avatar
    Join Date
    Apr 2006
    Location
    Dearborn Heights, Mich
    Posts
    65
    I also think I have to much Prop, not enough rpm?

  8. #8
    Happily Self-Employed WFO's Avatar
    Join Date
    Nov 2005
    Location
    Houston, Texas
    Posts
    12,800
    +1
    449
    Quote Originally Posted by GPHOTROD View Post
    I also think I have to much Prop, not enough rpm?
    Freeflow is good for where you are. You will probably pick up some accelleration with a smaller prop, but may lose some top end. Maybe borrow a prop from your buddies and see.

    Or find a little more power, because you will need that prop in the cooler months.

  9. #9
    just GOT TO DO IT! great lakes gpr 1200's Avatar
    Join Date
    May 2006
    Location
    muskegon michigan
    Posts
    798
    Quote Originally Posted by GPHOTROD View Post
    Standing as far back as I can. Back side of the hump.
    My ski started getting a lifting feeling when I started bumping the 76 mark. I just added .020 to the back of my plate. lifting is gone. and I gained a little more.

    write down your changes. so you can get back?

  10. #10
    mtrager's Avatar
    Join Date
    Jul 2006
    Location
    Orlando, Florida, United States
    Posts
    2,443
    +1
    2
    7080 is where you want to be.

    Go boy.

Page 1 of 2 1 2 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. I have the BUCK!
    By Robsauto2 in forum Yamaha PWC Performance (2-stroke)
    Replies: 16
    Last Post: 08-06-2007, 10:57 AM
  2. 73+ mph & passing the buck?
    By Dirty Sanchez in forum Yamaha PWC Performance (2-stroke)
    Replies: 13
    Last Post: 04-27-2007, 07:05 AM
  3. The Buck, What Pump Do You Run???
    By SUCKMYWAKE in forum Yamaha PWC Performance (2-stroke)
    Replies: 19
    Last Post: 03-19-2007, 06:20 PM
  4. What mods give you the best bang for the buck?
    By Phil in forum 4-Tec Performance
    Replies: 4
    Last Post: 07-28-2005, 07:10 AM
  5. laptop computer---best bang for the buck?
    By watermedic in forum Sea Doo Open Discussion
    Replies: 12
    Last Post: 06-15-2005, 10:52 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •