Author Topic: THE SWINGING ARM ISSUE - a bit of help please  (Read 8500 times)

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Offline Mick D

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Re: THE SWINGING ARM ISSUE - a bit of help please
« Reply #15 on: November 21, 2009, 03:28:21 pm »
deleate the whole thread. and start again lol   quick
Well actually I was thinking of of of, mmh on second thoughts I think I better not say what I was thinking.
Need cash quick.

Who wants to by some square barrel projects ???
"light weight, and it works great"  :)

Offline paul

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Re: THE SWINGING ARM ISSUE - a bit of help please
« Reply #16 on: November 21, 2009, 03:29:56 pm »
200 lol :D

Offline LWC82PE

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Re: THE SWINGING ARM ISSUE - a bit of help please
« Reply #17 on: November 21, 2009, 03:31:57 pm »
seems to sound alright but can you clarify this statement and perhaps reveal exactly what model bike the swing arm is from?

Quote
alloy arm rear end out of a compliance plated 1984 bike

Now is this a bike with a 1984 manufacture date on the compliance plate, most likely meaning its an 85 model or is it actually a 84 model? You would need to be 100% sure that just because the compliance plate says 84, that it is actually a 84 model and not a 85 model because the date on the compliance plate is not an indication of the model. If it is actaully a 85 model then i would say no to the arm unless it can be proven that the 85 swing arm is the exact same part number as the swing arm from the 84 model of the particular bike the swingarm is sourced from.
« Last Edit: November 21, 2009, 03:34:17 pm by LWC82PE »
Wanted - 1978 TS185 frame or frame&motor. Frame # TS1852-24007 up to TS1852-39022

Offline Mick D

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Re: THE SWINGING ARM ISSUE - a bit of help please
« Reply #18 on: November 21, 2009, 03:32:19 pm »
ive had no answers from him as yet but it would make a good weapon hey

 Imagine it finished ::) It wouldn't matter wether ya rode it, looked at it, felt it, sniffed it, held it, surely it would all be good :o  
« Last Edit: November 21, 2009, 04:03:19 pm by MICK-DE »
"light weight, and it works great"  :)

firko

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Re: THE SWINGING ARM ISSUE - a bit of help please
« Reply #19 on: November 21, 2009, 03:46:06 pm »
Mick your Maico twin shock project wouldn't be much different to Peter Rowlands cool 'IZ' Yamaha tracker. It started life as an IT250H fitted with a similar vintage YZ465 engine. It slotted straight into the pre 85 class. It'd be a lot better than fitting the engine to an Astro frame..if you could find one. Brian Clarke fitted a 465 Yamaha engine to an Astro a few years ago and it apparently handled like a bucket of shit on our tracks, as most American flat track frames do. I'd use the Maico frame and suitably modifiy it as Pete has done in his thread.
http://ozvmx.com/community/index.php?topic=9177.0
           

Offline paul

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Re: THE SWINGING ARM ISSUE - a bit of help please
« Reply #20 on: November 21, 2009, 04:07:26 pm »
 firko last year or mabee a bit longer , i ask you firko if i could modify a alfa 1 frame to twin shocks and build a flat tracker outa it and you stated ,that it would be illegal.i even went as far as to ask brad for his spare alfa 1 parts to do it .but there in front off me there is a IT single shock modified frame with two shocks that now you say is ok
.whats the difference from one to the other  thanks
« Last Edit: November 21, 2009, 04:46:30 pm by paul »

firko

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Re: THE SWINGING ARM ISSUE - a bit of help please
« Reply #21 on: November 21, 2009, 05:19:25 pm »
I don't remember Paul.. I doubt I said that but if I did I was wrong. Sue me ;D.

Offline paul

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Re: THE SWINGING ARM ISSUE - a bit of help please
« Reply #22 on: November 21, 2009, 05:23:28 pm »
yes well i dont tell lies either
« Last Edit: November 22, 2009, 12:47:50 pm by paul »

Offline Mick D

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Re: THE SWINGING ARM ISSUE - a bit of help please
« Reply #23 on: November 21, 2009, 07:22:51 pm »
seems to sound alright but can you clarify this statement and perhaps reveal exactly what model bike the swing arm is from?

Quote
alloy arm rear end out of a compliance plated 1984 bike

Now is this a bike with a 1984 manufacture date on the compliance plate, most likely meaning its an 85 model or is it actually a 84 model? You would need to be 100% sure that just because the compliance plate says 84, that it is actually a 84 model and not a 85 model because the date on the compliance plate is not an indication of the model. If it is actaully a 85 model then i would say no to the arm unless it can be proven that the 85 swing arm is the exact same part number as the swing arm from the 84 model of the particular bike the swingarm is sourced from.
Thanks, but there will be no dispute as to the alloy swinging  arm and rear wheel arrangement not being legit 1984 single shock rear end mass production items.
Cheers, Mick.


« Last Edit: November 21, 2009, 07:59:08 pm by MICK-DE »
"light weight, and it works great"  :)

Offline Mick D

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Re: THE SWINGING ARM ISSUE - a bit of help please
« Reply #24 on: November 21, 2009, 07:36:03 pm »
Mick your Maico twin shock project wouldn't be much different to Peter Rowlands cool 'IZ' Yamaha tracker. It started life as an IT250H fitted with a similar vintage YZ465 engine. It slotted straight into the pre 85 class. It'd be a lot better than fitting the engine to an Astro frame..if you could find one. Brian Clarke fitted a 465 Yamaha engine to an Astro a few years ago and it apparently handled like a bucket of shit on our tracks, as most American flat track frames do. I'd use the Maico frame and suitably modifiy it as Pete has done in his thread.
http://ozvmx.com/community/index.php?topic=9177.0
           

Thanks Firko,
                       and everyone else. I enjoyed snippets of that thread at the time, but was too busy to take it all in. I intend to amend that situation tonight, particularly as it looks as good in flesh as it does in the pictures. Have you tunned it and dialled it in yet Pete?
                       At the optimum I could not imaging anything worse than a friend winning a tittle on one of your Hot Rods, then loosing it to a protest because one hadn’t comprehended the rules properly in the first place. Unlikely, yeah maybe? But never say never.
                       While I have all his assistance, one more question please. I have tried fitting this new(old) 1984 swinging arm and lightweight wheel arragement, all that is needed by the way to make it fit into the back of the Maico is different bearings and a couple thin spacers. I tried it upsidedown as well without the linkage arrangement and varying single shockers I have will bolt straight into place. QUESTION; does this mean that the bike could now legally run in “EVO” classes? Given that everything else on it complies with “evo rules”? It is still a single shock all from the “era”, but without linkage just like a 1983 or 1984 “ATK” of the era.

          I might add I am not cutting or welding anything, just changing bearings and adding spacers. Of course I will be taking the electric paint stripping heat gun to the air box and lower inner back guard, should I proceed

18.7.12.3 All components will be of the period the
machine was manufactured.
a) No linkage suspension,
b) No Disc brakes,
c) Air cooled motors.
Cheers and thanks for any help or advice on the matter, Mick

« Last Edit: November 21, 2009, 07:50:08 pm by MICK-DE »
"light weight, and it works great"  :)

Offline Freakshow

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Re: THE SWINGING ARM ISSUE - a bit of help please
« Reply #25 on: November 23, 2009, 11:57:05 am »
With out reading the whole thing i would say if its all pre 85 component wise its all OK.  The only protesting you could pull on doing it would be the bit where somewhere in the rules something says about shocks must be in the original position.   NOW does that mean a mono must be in the mono position and you cant go to a new position ?

I'M not over the whole evo/ pre 85 thing,  i just live in the pre 75 space where twin shocks are twin socks so there is not grey areas.   

IF i was to say what i think i would say to my mind you should be able to use ANY available principle or  technology pre 85 to build anything you like, even as a hand made special.    Therefore so long as its air cooled and with no disks if that's the rules, everything else is PErfectly Legal OK.
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Offline Marc.com

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Re: THE SWINGING ARM ISSUE - a bit of help please
« Reply #26 on: November 24, 2009, 09:55:03 am »
  Therefore so long as its air cooled and with no disks if that's the rules, everything else is PErfectly Legal OK.

Thats the rules they run in Japan, makes life more interesting.

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Offline Freakshow

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Re: THE SWINGING ARM ISSUE - a bit of help please
« Reply #27 on: November 24, 2009, 11:25:54 am »
BUt thats got a disk....
74 Yamaha YZ's - 75 Yamaha YZ's
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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 Marc.com

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Re: THE SWINGING ARM ISSUE - a bit of help please
« Reply #28 on: November 24, 2009, 01:23:33 pm »
BUt thats got a disk....

yeah he is cheating but nobody protested, seemed too bothered, too busy enjoying themselves like in the good old days.
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All Things 414

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Re: THE SWINGING ARM ISSUE - a bit of help please
« Reply #29 on: November 24, 2009, 04:20:31 pm »
yeah he is cheating but nobody protested, seemed too bothered, too busy enjoying themselves like in the good old days.

What. Like in Horoshima?
« Last Edit: November 24, 2009, 04:22:47 pm by All Things 414 »