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Author Topic: 1975 Yamaha YZ125B motor in pre75 frame?  (Read 2561 times)

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Offline Tossa

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1975 Yamaha YZ125B motor in pre75 frame?
« on: November 20, 2013, 06:07:53 pm »
would a 1975 yz125b in a 1973 rickman frame qualify for pre75 classes
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1973 Rickman Zundapp Metisse, to rebuild
1979 Husqvarna WR250
1974 Husqvarna MAG CR250

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Re: 1975 Yamaha YZ125B motor in pre75 frame?
« Reply #1 on: November 20, 2013, 06:10:19 pm »
I would have thought so as the motor / bike  is the same as an A  :)
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Offline Davey Crocket

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Re: 1975 Yamaha YZ125B motor in pre75 frame?
« Reply #2 on: November 20, 2013, 06:13:07 pm »
The twinshock YZ125B is a carry over. Make sure it's a 5 speed.
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Offline Tossa

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Re: 1975 Yamaha YZ125B motor in pre75 frame?
« Reply #3 on: November 20, 2013, 06:21:31 pm »
Joh n I have a rickman zundapp frame, having probs getting "good parts" for Zundapp so was thinking of either an MX-a, YZ-a or YZ-b motor, if i can find one.
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1973 Rickman Zundapp Metisse, to rebuild
1979 Husqvarna WR250
1974 Husqvarna MAG CR250

Offline firko

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Re: 1975 Yamaha YZ125B motor in pre75 frame?
« Reply #4 on: November 20, 2013, 07:00:41 pm »
Do it mate. It's a sweet little swap.....and legal.
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'68 Yamaha DT1 enduro, '69 Yamaha 'DT1 from Hell' '69 DT1'Dunger from Hell, '69 Cheney Yamaha 360, 70 Maico 350 (2 off), '68 Hindall Ducati 250, Hindall RT2MX, Hindall YZ250a , Cycle Factory RT2MX flat tracker, Yamaha 1T250J, Maico 250 trials, '71, Boyd and Stellings TM400, Shell OW72,750 Yamaha

Offline Iain Cameron

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Re: 1975 Yamaha YZ125B motor in pre75 frame?
« Reply #5 on: November 20, 2013, 07:02:50 pm »
Cant see any reason not to . The eng # is even the same for the first 3 digits . go for it
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Yamaha tragic ; dt1, rt1, dt2, rt2, dt2mx , rt2mx , mx250, mx360,sc500, 74dt125, yzx125, yzc250, yzc400, yzd250, yzd400, yzh250, yzh80 , dt100 , xr75 ko xr80 03 , it175 82 . Not a member of any club

Offline Davey Crocket

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Re: 1975 Yamaha YZ125B motor in pre75 frame?
« Reply #6 on: November 20, 2013, 09:25:20 pm »
I don't know if it will be as good as my YZA......lol.....for Sarah?......she'll want the best. ;D
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Offline Tossa

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Re: 1975 Yamaha YZ125B motor in pre75 frame?
« Reply #7 on: November 20, 2013, 09:30:55 pm »
looks like I'll have to start looking then
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1973 Rickman Zundapp Metisse, to rebuild
1979 Husqvarna WR250
1974 Husqvarna MAG CR250

Offline Tossa

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Re: 1975 Yamaha YZ125B motor in pre75 frame?
« Reply #8 on: November 20, 2013, 09:31:44 pm »
Somehow I knew you would say that John. I'll get it up and going for the Nats
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1973 Rickman Zundapp Metisse, to rebuild
1979 Husqvarna WR250
1974 Husqvarna MAG CR250

Offline Rossvickicampbell

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Re: 1975 Yamaha YZ125B motor in pre75 frame?
« Reply #9 on: November 21, 2013, 12:01:14 am »
yeah right Baz  ;D
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Offline VMX60

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Re: 1975 Yamaha YZ125B motor in pre75 frame?
« Reply #10 on: November 21, 2013, 12:59:38 am »
Barry

Like to have a go at the Zundapp retso .  Would you interested in a Swap for a 125cc Husky to match the 250cc  :)

Cheers

Murray
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Offline Tossa

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Re: 1975 Yamaha YZ125B motor in pre75 frame?
« Reply #11 on: November 21, 2013, 10:00:56 am »
pm me Murray with your idea
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1973 Rickman Zundapp Metisse, to rebuild
1979 Husqvarna WR250
1974 Husqvarna MAG CR250

Offline Freakshow

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Re: 1975 Yamaha YZ125B motor in pre75 frame?
« Reply #12 on: November 21, 2013, 08:26:57 pm »
id have a mx or DT 125 motor for sale
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74 Yamaha YZ's - 75 Yamaha YZ's
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For sale -  PRE 75 Yamaha MX stuff, frame, motors and parts also some YAM DT1,2,A and Suzi TS bikes and stuff

Offline Tossa

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Re: 1975 Yamaha YZ125B motor in pre75 frame?
« Reply #13 on: November 21, 2013, 11:13:34 pm »
will get back to everyone as soon as I get answers on the parts for the zundapp we are chasing.  Should know soon
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1973 Rickman Zundapp Metisse, to rebuild
1979 Husqvarna WR250
1974 Husqvarna MAG CR250
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