Author Topic: Yamaha YZ360 B  (Read 4623 times)

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Offline Iain Cameron

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Re: Yamaha YZ360 B
« Reply #15 on: April 16, 2020, 10:53:47 AM »
The first mono's available to the public where the YZ series Designated the 75 model but released in Australia  at Easter in 1974 so called the YZb  only the 250 and 360 were mono the 125 remained twin shock till the YZc came out in late 75 . the YZx125 came out in 76 to match the YZc 175 , 250 and 400 . but as Yamaha had used the "C" the year before for the 125 it was called the X .
The MX series ended for the 250 and 400 in 1975 but the 125 lasted one more year as the 125c and was a twin shock bike .
the DT/MX designation was used in Europe and the US for the trail bikes range were as in Aust we called them the DT range .
todays useless information from the Yamaha tragic .
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 GMC

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Re: Yamaha YZ360 B
« Reply #16 on: April 17, 2020, 10:22:06 PM »
Geoff there was no MX250/ 400 c in 1976 . 1975 was the last year of the 250 and open class MX series .

Ah, yes
I was trying to put some intelligent information together, only ended up confusing myself :o
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Offline GMC

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Re: Yamaha YZ360 B
« Reply #17 on: April 17, 2020, 10:37:15 PM »
todays useless information from the Yamaha tragic .

Talking of useless information;

The MX 100 went for many more years

And the YZ 100 D  was based on the C/X models,

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Offline Wasp

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Re: Yamaha YZ360 B
« Reply #18 on: April 18, 2020, 11:57:11 AM »
thanks , so everybody in agreeance with the updated GMC list ?
362 shocks , We don't just sell them - I designed and make them individually for you since 1989.

Offline Barra

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Re: Yamaha YZ360 B
« Reply #19 on: April 18, 2020, 03:06:12 PM »
Looks good to me, although i'm no expert.  I had always thought the '75 MX B's were the first production monoshock, I'd never seen the first '74 YZ monoshocks, they must have been a limited run model like the RH Suzukis for selected riders only??

So Walter, is it strictly a YZ 360 you are chasing? 

Offline Wasp

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Re: Yamaha YZ360 B
« Reply #20 on: April 18, 2020, 03:46:08 PM »
Yes they only made 1400 of them globally ,so I have been told , but I was confused of the year . The MX 360 also threw me off . Now it makes all sense . Yes Barra , that is the one I am chasing for a friend .
362 shocks , We don't just sell them - I designed and make them individually for you since 1989.

Offline Barra

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Re: Yamaha YZ360 B
« Reply #21 on: April 18, 2020, 06:24:02 PM »
Quote
1975
MX 125 B - twinshocks
MX 250 B - monoshock
MX 360 B - monoshock

Actually Geoff shouldn't that be MX 400 B?

Offline GMC

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Re: Yamaha YZ360 B
« Reply #22 on: April 19, 2020, 09:02:14 AM »
Quote
1975
MX 125 B - twinshocks
MX 250 B - monoshock
MX 360 B - monoshock

Actually Geoff shouldn't that be MX 400 B?

Doh!
My enthusiasm to look knowledgeable has brought me down again, curse you copy and paste.

I also accidently deleted the MX 125 C which I know exists, just that they are rare, well in Oz anyway, think they were 76!
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Offline GMC

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Re: Yamaha YZ360 B
« Reply #23 on: April 19, 2020, 09:11:34 AM »
Lets see if i can't bring myself undone again :o

I believe this is what Wasp is chasing, the YZ360B;


Not to be confused with the MX 400 B

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Offline GMC

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Re: Yamaha YZ360 B
« Reply #24 on: April 19, 2020, 09:14:07 AM »
And just for the hell of it...

The MX A series


And the YZ A series
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Offline sleepy

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Re: Yamaha YZ360 B
« Reply #25 on: April 19, 2020, 10:23:38 AM »
Geoff thanks for those photos. My favorites are the "A" model YZ's with the DT1 based motors and the "B" had the same motor. The early Mono's would have been so much better if they had a decent shock and spring combination. What was Yamaha thinking when they made a rear suspension with the down travel controlled by the spring going coil bind and no effective bump rubber and as the spring sagged with age the owner would wind up the pre-load only reducing the travel. I recall racing a 125C in my youth after coming off a TM125 and thinking how much better it was until you bottomed the rear end only to find the seat coming back up at a great rate trying to drive your backside up your spine. Only raced it twice then bought an RM125S which was way better again. 

Offline Hoony

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Re: Yamaha YZ360 B
« Reply #26 on: April 19, 2020, 10:24:12 AM »
Good Work Geoff........for a surgeon of steel   8)
Long time Honda Fan, but all bike nut in general, Big Bore 2 stroke fan.    http://www.youtube.com/watch?v=XJoKP6MawYI
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Offline Wasp

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Re: Yamaha YZ360 B
« Reply #27 on: April 19, 2020, 07:08:23 PM »
Geoff thanks for those photos. My favorites are the "A" model YZ's with the DT1 based motors and the "B" had the same motor. The early Mono's would have been so much better if they had a decent shock and spring combination. What was Yamaha thinking when they made a rear suspension with the down travel controlled by the spring going coil bind and no effective bump rubber and as the spring sagged with age the owner would wind up the pre-load only reducing the travel. I recall racing a 125C in my youth after coming off a TM125 and thinking how much better it was until you bottomed the rear end only to find the seat coming back up at a great rate trying to drive your backside up your spine. Only raced it twice then bought an RM125S which was way better again.

Well pointed out sleepy , that is exactly what I am working on . Bumpstop in combination with spring travel and stroke . A couple of weeks and I have a solution to present . I will upload the pics on the FB site , when finished
362 shocks , We don't just sell them - I designed and make them individually for you since 1989.

Offline Iain Cameron

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Re: Yamaha YZ360 B
« Reply #28 on: April 19, 2020, 10:33:28 PM »
Well done Geoff . Not bad for a rider of the Green ones . only missing the MX 175 1974 and the YZc 175 1976 if you think a MX175 1976 is rare in Aust try finding a YZ175c .
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 GMC

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Re: Yamaha YZ360 B
« Reply #29 on: April 19, 2020, 11:10:04 PM »
They were just some photos I stole from the net.

I remember seeing the YZ 125 C on the front of Trail and Track and thinking it was the coolest thing.
It would be another year before I could gather enough money to buy a second hand MX 125 A

Well done Geoff . Not bad for a rider of the Green ones . only missing the MX 175 1974 and the YZc 175 1976 if you think a MX175 1976 is rare in Aust try finding a YZ175c .

Well I started off with Yamahas before I turned green

And I just sold a airbox and chamber to the US for a YZ 125B
G.M.C.  Bringing the past into the future

Shock horror, its here at last...
www.geoffmorrisconcepts.com

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