copemech Posted April 3, 2014 Report Share Posted April 3, 2014 Old co worker friend from 30 odd years back came up to our workplace today. Good to see him, and although our conversation got cut short by business, he had heard I still messed with the bikes, yes, can you get my old Bultaco trials running again, it has no spark? Probably so! I have a flywheel puller for it, he states! Do you have one them things to set points and stuff? I replied, yes, if I can find it! I have a proper dial indicator if it still works! Can I call you? Yes I said, heres my number! So, as things go, this is the fellow I used to borrow his TL 125 to use as a pit bike back in the 80's when I went to MX! He had a Triumph tracker too! Wonder if he still has them? Yes, I owe him a favor, so no issue. Cannot recall his Sherpa T year, probably early 70's vintage, and I will have to find out more. All point being, I may soon have to call on the experts here for more info. I seem to recall reading things like relocating the condensers to prevent overheat and such. Breakers set at 2.5mm btc, is that correct? Chime in if you like, I will have to get more details, Cheers all! Need to get my brain working! 1 Quote Link to comment Share on other sites More sharing options...
bullylover Posted April 3, 2014 Report Share Posted April 3, 2014 (edited) On a Sherpa the timing depends on how you want it to run. First up the points gap should be .40mm or between .35 and .45mm. On the early ones the owners manual said 3.15mm BTDC I think. That is quite advanced though. The 250`s are really smooth at 2.6mm BTDC. I like the 350`s at 2.9mm BTDC. The more advanced you have it the snappier it will be but not as smooth down low. It really is up to you. One way is to write out some numbers on small pieces of paper and put them in a hat and see which one you pull out. I have read that Reg May recommended on the older ones 2.5mm BTDC. Graham. Edited April 3, 2014 by bullylover Quote Link to comment Share on other sites More sharing options...
pschrauber Posted April 3, 2014 Report Share Posted April 3, 2014 Reallocating the condenser is not a real "must have" just replacing - if in need - works already very well, as most electrical parts don't get better with the age. A new condenser will be much more reliable then a over 30 year old unit that might fail just because it's got a little bit warmed up. Anyway looking forward to follow another Sherpa rebuild, thumps up !!! 1 Quote Link to comment Share on other sites More sharing options...
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