« previous next »
Pages: [1]   Go Down

Author Topic: motor eligilbilty  (Read 1661 times)

0 Members and 1 Guest are viewing this topic.

Offline shorelinemc

  • Legend
  • *****
  • Posts: 1065
  • life sucks&then you die
    • View Profile
motor eligilbilty
« on: November 06, 2008, 02:58:37 pm »
G`day i need a bigger /faster motor for my wasp 1976 (stock xs650) happen to have a water cooled gpz900 motor(1984) which looks like it would be a nice fit.would this motor be legal in a pre85 outfit? I like the idea of a stock big motor rather than a hotted up xs650.reason i am 138kg passenger 80kg so i am giving up to 60 kg advantage to the other bikes .
Logged

Offline Freakshow

  • Superstar
  • ******
  • Posts: 7277
  • Adelaide, SA - looking for a "YZA" tank
    • View Profile
Re: motor eligilbilty
« Reply #1 on: November 06, 2008, 03:03:49 pm »
Go on that firko diet, might save you some money on the upgrade :O)

Logged
74 Yamaha YZ's - 75 Yamaha YZ's
74 Yamaha  flattracker's
70  Jawa 2 valve speedway's

For sale -  PRE 75 Yamaha MX stuff, frame, motors and parts also some YAM DT1,2,A and Suzi TS bikes and stuff

Offline shorelinemc

  • Legend
  • *****
  • Posts: 1065
  • life sucks&then you die
    • View Profile
Re: motor eligilbilty
« Reply #2 on: November 06, 2008, 03:06:18 pm »
trouble is i am fat and happy as the texans say and i want my heart attack to be a surprise :) ans a stocker just isnt dangerous enough
Logged

Offline Tim754

  • Legend
  • *****
  • Posts: 4011
  • Northern Country Victoria
    • View Profile
Re: motor eligilbilty
« Reply #3 on: November 06, 2008, 05:15:51 pm »
Robin A liquid cooled 750 Suzuki is legal in pre75 so your 1984 heavy weight engine should be kosher in pre85. As you most likely know the FIM basically killed of the heavy weights when they put the capacity limits on in 86/87 >:( Light weight long travel 500cc single two strokes (eg CR500 KX500 etc) would not be "in the  spirit" but the GPZ in Wasp frame sounds OK. :)
Logged
I may not agree with what you have to say, but I'll defend to the death your right to say it.
                                                   Voltaire.
Pages: [1]   Go Up
« previous next »