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Author Topic: what engine is this  (Read 1790 times)

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Offline shelpi

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what engine is this
« on: December 01, 2011, 12:44:22 pm »
just got a motor in and for the life of me cant work out exactly what model  :'( engine number 575-000### is it a MX250  ??? looks simular to a DT250B but with blue, brown, black and red wires from mag cover that are bullet joiners and the head is differant but still twin plug  :-\  cheers
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valleyam

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Re: what engine is this
« Reply #1 on: December 01, 2011, 01:37:30 pm »
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Offline shelpi

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Re: what engine is this
« Reply #2 on: December 01, 2011, 01:53:59 pm »
thanks for that  :D all my info had me thinking DT250 1975-1976 chassis/engine id. as 450,  then DT250 1977-1980 as 1M2 so thanks for the link i can sleep at nights now  ;D all the best on your quest.
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Offline Freakshow

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Re: what engine is this
« Reply #3 on: December 01, 2011, 02:04:18 pm »
YEr you mist one pete, there was a 5 series range after the 74 models.
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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 shelpi

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Re: what engine is this
« Reply #4 on: December 01, 2011, 02:14:35 pm »
ah yer its a never ending story  :P hey Kerry have ya got a head for a DT360A 1974 id 446 or should i just go straight to the B model 397cc top end id 501 (501 arn't they LEVI'S?)
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Offline Freakshow

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Re: what engine is this
« Reply #5 on: December 01, 2011, 02:47:12 pm »
any will work. you just need to choose the plug positions as there are a few on the DT/MX.   given then they also have differant Squish and CC.

360's are 360's till they went to the 400cc
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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 shelpi

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Re: what engine is this
« Reply #6 on: December 03, 2011, 03:06:50 pm »
THANKS FREAKY  ;)  ;D HEY FREAKS will the DT400B Barrel fit the 360a ok  ???
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