Page 1 of 3 1 2 3 LastLast
Results 1 to 10 of 25
  1. #1

    Join Date
    Apr 2006
    Location
    South MS
    Posts
    1,095

    Single pipe 1200 76mph+ video

    Took the 1200 single pipe project ski out today. Protec CDI gave it some more rpm. Its turning close to 7300rpm now. Best of 76.1mph

    Looks like this is about all its going to do on an out of the box dynafly 14/20 but I'm going to put 48mm blackjacks on next week see what it turns then pitch the prop up.

    [/URL]

    Mods-
    stock carbs rejetted, removed air box
    V-Force Reeds
    ADA Head 150 psi
    3 degree keyway
    Protec CDI
    '05 HO pump with 2" spacer
    Dynafly 14/20
    85mm nozzle
    Leo's wedge
    Jims plate set at over 1"
    stock Tabs shimmed at .140"
    Sealed Pump shoe
    800 grate
    D-plate


  2. #2

    Join Date
    Apr 2006
    Location
    South MS
    Posts
    1,095
    Here is an acceleration video. This little 1200 is fun on a 14/20 dynafly. You can watch the tach and hear the engine rev up out of the hole....thats with an 800 grate. Doesn't take long to see 69mph+ on the gps. Have to try a 1200 grate next time.


  3. #3
    Moderator RX951's Avatar
    Join Date
    Apr 2005
    Location
    League City, Texas
    Posts
    16,066
    +1
    23

    Thumbs up



    I approve of this message.

  4. #4
    Moderator beerdart's Avatar
    Join Date
    Aug 2006
    Location
    CT
    Posts
    25,929
    +1
    1,407

  5. #5
    YudLuz2's Avatar
    Join Date
    Jun 2005
    Location
    Flowood MS
    Posts
    1,647
    +1
    110
    Holy smoke, 7300 rpms on a 14/20 prop/85mm nozzle with a 1200 unported motor. Thats got to be some type of top secret setup.

  6. #6

    Join Date
    Apr 2006
    Location
    South MS
    Posts
    1,095
    Quote Originally Posted by YudLuz2 View Post
    Holy smoke, 7300 rpms on a 14/20 prop/85mm nozzle with a 1200 unported motor. Thats got to be some type of top secret setup.
    I will never tell Now if I could just get it to hold that 7300rpm, it backed up on me a little to 7260-7270.

    Time to put a bigger prop in it and go 78mph+ Now that might be a record for single 1200 Might pull the tabs off and get you to pilot it for 80mph+

  7. #7
    WATER WOODY's Avatar
    Join Date
    Aug 2005
    Location
    Minden, Nevada, United States
    Posts
    10,664
    +1
    11
    Nice job Ronn......

  8. #8
    jonny5's Avatar
    Join Date
    Aug 2005
    Location
    Redding, CA
    Posts
    1,266
    +1
    5
    Whats the fastest a stock single pipe gpr 1200 is runnning ..well average I guess ...73-74??

    As in stock carbs ..and mainly bolt on stuff and plate stuff...?

  9. #9

    Join Date
    Apr 2006
    Location
    South MS
    Posts
    1,095
    72-75mph is proabably average for a 1200. There have been a few guys here run 76-77mph range that I know of for sure.

  10. #10
    Try not to smile on a Jetski... GPRFrank's Avatar
    Join Date
    Sep 2009
    Location
    NJ
    Posts
    542
    +1
    1

    CDI box

    Awsome Ronne, Glad to see that pro-tec go to good use..... Nice addition

Page 1 of 3 1 2 3 LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Fastest Single Pipe GP1200R Speeds!
    By ramnj in forum Yamaha PWC Performance (2-stroke)
    Replies: 172
    Last Post: 06-30-2012, 09:06 AM
  2. One Mean 1200 Single Pipe
    By Ronn25 in forum Yamaha PWC Performance (2-stroke)
    Replies: 17
    Last Post: 07-14-2010, 09:22 AM
  3. 95 waveraider 1200 single pipe f/s
    By big raider in forum Yamaha 2 Stroke Skis
    Replies: 1
    Last Post: 11-26-2008, 08:32 PM
  4. Extra cooling for single pipe/OEM heads
    By sbogi in forum Yamaha PWC Performance (2-stroke)
    Replies: 12
    Last Post: 01-21-2008, 12:18 AM
  5. Single Pipe Crayola Speed Videos
    By ABBOTT in forum Yamaha PWC Performance (2-stroke)
    Replies: 29
    Last Post: 12-15-2006, 09:24 AM

Posting Permissions

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