Old Bultaco

jlp · 2014-10-25T20:34:43+0000

428 is 1/2 inch and was last on M92 from memory and is noticeably smaller than the 520 which is 5/8 inch

bisby

November 27, 2014

Put the cog on a piece of paper and draw around it, then turn the cog around to the good bit and finish the teeth locations and you should have your answer. Steve.

jlpar

July 23, 2016

Hello guys, Just a small update. Got the tank back from the spray shop. I think it looks pretty good. I have to apply the decals but forgot to measure the exact location, Doh!

jlpar

August 26, 2017

Thanks guys, There's a couple of options re. piston which I will try. Regards chroming, I decided to purchase some new parts ( handlebars, Levers) and will refurbish some other stuff. I

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