Author Topic: 1960's GP bike  (Read 1681 times)

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Offline popeye

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1960's GP bike
« on: December 16, 2016, 04:33:23 PM »
I am restoring a 1960's GP 125,how or where can i find out what sort of nuts and bolts and fasteners in general that a private GP team might have used in these times as wouldnt want to spoil it by fitting incorrect fasteners.


Offline Johncb500

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Re: 1960's GP bike
« Reply #1 on: December 21, 2016, 08:20:26 PM »
is it a TA125 ?

  if you search the forum you will several threads about the 125 racers,
check RD17 thread,he made a wonderful job
lifelong rider,laterly with Honda,now a little RD as well


Offline 5port

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Re: 1960's GP bike
« Reply #2 on: December 22, 2016, 07:59:43 PM »
Hi Popeye.  I suspect that an original 60's Yamaha race bike would start with its original Yamaha nuts, bolts and screws that were mostly steel bzp or chrome finish and at that time without material markings or numbers on the heads. Stainless would be rare IMO.  Obviously, a non standard race bike like yours would have some special fasteners on the non-standard parts like brakes, frame etc.   A bike that has a parts book might help a lot but, a special will be difficult.  I would advise treating all your bikes fasteners as "original" unless you find better evidence.  Also, you might be able to get a good job done on replating what seems original.  You can find some NOS Yamaha fasteners but, beware of modern superceeded parts when you try Yamaha dealers.  Cheers