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Author Topic: 1977 YZ 38mm Forks  (Read 7594 times)

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Offline AL172

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1977 YZ 38mm Forks
« on: March 18, 2015, 09:20:26 pm »
Looking for some 38mm YZ forks for a Pre 78 project.

Any help will be appreciated.

AL
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Offline Viper666

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Re: 1977 YZ 38mm Forks
« Reply #1 on: March 19, 2015, 02:38:55 pm »
You realise you'll have to nobble them so that they don't have more than 9" of travel?

Most had a spacer on the springs at the top. cut a  smaller spacer of it & include with the top out spring.

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YZ80H, YZ100G, YZ125E, YZ125F, YZ125G, YZ250D, YZ250E, YZ250F, YZ250G, YZ250H, YZ400F, IT125G, IT250K & a, a, a,      CRF250X???????    

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Offline AL172

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Re: 1977 YZ 38mm Forks
« Reply #2 on: March 19, 2015, 08:19:19 pm »
Yeah I know, I just want to get the period correct forks. I will shorten up the stroke if nessasary but if u saw how fast I ride u would understand that there is not much chance of me being subject to a protest????

By the comments on the forum regarding the 9" rule I think there is a pretty good chance the MOMS could be amended? Just need to put in the paperwork & get enough people to support it. There was some very strong resistance to 4 stroke class being added but it is now in there.

AL
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Offline Viper666

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Re: 1977 YZ 38mm Forks
« Reply #3 on: March 20, 2015, 02:01:44 pm »
« Last Edit: March 20, 2015, 02:08:04 pm by Viper666 »
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Thank the Lord for Melbourne Bitter, anti-inflamatory drugs & an understanding wife.
YZ80H, YZ100G, YZ125E, YZ125F, YZ125G, YZ250D, YZ250E, YZ250F, YZ250G, YZ250H, YZ400F, IT125G, IT250K & a, a, a,      CRF250X???????    

How the FUG did that sh*tbox Honda get in here?

Offline crossedup2

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Re: 1977 YZ 38mm Forks
« Reply #4 on: March 20, 2015, 02:24:55 pm »
Viper

The 3 ebay ones are all 1978 or later forks. 1977 forks have only one drain nib at the back of the fork. From memory the under hang from the axle is longer also on 78's.
You would be challenged getting the bike off the trailer by someone in the know! As it did to me........ :( :o
It took me 6 months of ebaying to find the right set.

Good luck..
Peter B

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Anything Yamaha. AT1, CT1 (X3), RT1, DT3 (x3), YZ125X,  YZ250E, YZ400D, IT175E, IT250H, XR500RC . Always looking for Pre 78 Yamaha stuff....

Offline motomaniac

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Re: 1977 YZ 38mm Forks
« Reply #5 on: March 20, 2015, 07:13:10 pm »
Quote from: crossedup2 on March 20, 2015, 02:24:55 pm
Viper

The 3 ebay ones are all 1978 or later forks. 1977 forks have only one drain nib at the back of the fork. From memory the under hang from the axle is longer also on 78's.
You would be challenged getting the bike off the trailer by someone in the know! As it did to me........ :( :o
It took me 6 months of ebaying to find the right set.

Good luck..
Peter B
Yes all correct , 20mm longer under the axle , hence the extra drain hole lug. They get bought up for HL's  built for pre 78 that's why they are hard to come by.
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Offline bigk

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Re: 1977 YZ 38mm Forks
« Reply #6 on: March 20, 2015, 07:37:56 pm »
Doesn't matter how slow (or fast) you are Al, someone will protest you just because they can, even if it's of no concern of theirs. It's the way things are.  :-\
K
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Offline AL172

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Re: 1977 YZ 38mm Forks
« Reply #7 on: March 21, 2015, 12:52:32 am »
Thanks everyone for the feedback.

Yes the 77 forks only have the 1 drain nib at the back & aren't as long under the axil.

As it happens I do want the forks for a HL, I have 43s on it now & race it in evo but want to make it pre78.

I am also chasing a 77 Husky CR250/390 frame & swingarm as I want to build a replica of the original prototype HL. I already have the seat & tank, wheels, parts to make an engine & a 34mm Amal carb.

Any leads will be appreciated.

I guess I will have to limit the fork travel until such time as there is an amendment to the rule?

AL



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Offline AL172

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Re: 1977 YZ 38mm Forks
« Reply #8 on: March 21, 2015, 01:12:49 am »
Thanks Viper666,
As discussed above, I am chasing the single drain nib forks. If you had a set I would definitely be interested. Triple clamps would be handy too.

Thanks
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Offline Digga

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Re: 1977 YZ 38mm Forks
« Reply #9 on: March 21, 2015, 06:21:22 am »
There wont be an amendment to the rule unless you &/or Perko make a submission to MA

As for the 77 Husky, Big K is your man there. If he hasnt got what you need he can probably find it for you  ;)
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1977 Yamaha YZ250D, 1977 Yamaha YZ400D, 1980 Yamaha YZ125G

Offline AL172

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Re: 1977 YZ 38mm Forks
« Reply #10 on: March 22, 2015, 01:53:00 pm »
Found!!!

I just picked up a set of 77 YZ250 forks, triples, axil & spacer off US ebay.

Thanks for everyone's feedback.

AL
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Offline motomaniac

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Re: 1977 YZ 38mm Forks
« Reply #11 on: March 22, 2015, 07:14:42 pm »
Theres usually a few there but with the current exchange rate and shipping not real cheap.


Quote from: AL172 on March 22, 2015, 01:53:00 pm
Found!!!

I just picked up a set of 77 YZ250 forks, triples, axil & spacer off US ebay.

Thanks for everyone's feedback.

AL
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Offline smalls717

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Re: 1977 YZ 38mm Forks
« Reply #12 on: March 22, 2015, 11:48:21 pm »
Are you interested in selling your 43mm forks and triples?
I want them for a HL project of my own.
Regards Tony.
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Offline TT5 Matt

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Re: 1977 YZ 38mm Forks
« Reply #13 on: March 23, 2015, 12:58:01 am »
theres a really nice set of yz490 forks at the wreckers where i am and should be tripples and a twin leading shoe backing plate as well as they were on everything till the disc brake front ends came the std
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Offline smalls717

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Re: 1977 YZ 38mm Forks
« Reply #14 on: March 23, 2015, 12:56:36 pm »
Thnx for the reply.
I'm in WA.
Whereabouts is the wreckers?
You wouldn't have a phone number for them please?
Regards Tony. 
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