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mrb505

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  1. They are both 3.6x230mm although the head or and the angle may be different, you’d think the part number would the same if there wasn’t any difference. That 86 number is the part number for m91/92 front inner spoke as well.
  2. Yes that would fit, that photo is of a m151 with a pommy tank, the 150/151 had the 1st head steady and a improved headstock gusseting
  3. That is a 91/92 series 2 frame I believe, that small gusset is standard on them and 124/125 frames or the ones I’ve seen anyway. The difference between 91/92 series 2 headstock and 124/125 is the waist between the bearing positions on the 124/125 the photo is a m125 headstock
  4. mrb505

    Bultaco M80

    My late model 49 has a G stamped in the same spot I don’t know what it means but we could always make up a story that it means Works Super Special but really it probably means George stamped it as it left the factory Looks to me your original frame mounted sidestand bracket is on the right side if the swing arm bracket is on the opposite side the bracket would have been welded on later I’m pretty sure no Bultaco had a stand on the chain side Those mounting lugs are interesting are they buffer mounts like the ones behind the headstock you’d have to wonder what sort of tank/seat it had on it. They are not even opposite each other.
  5. There is a o’ring behind the bush the sprocket seal runs on that should be done while the seal is out too.
  6. Yes it’s a 183 frame when I bought it the tubes underneath were totally squashed so I cut them off and tried to replicate it to a 199a style, the bash plate I bought from todotrial I also cut the foot pegs off and mounted gas gas ones a bit further down and back
  7. The problem is that I clear coated over the sticker I’ll redo the tank maybe one day but the bike isn’t very original anyway and as it’s a regular rider it wears a plastic tank most of the time
  8. Nice job XXXX looks great I put the smaller Bultaco sticker on my 183 and it’s annoyed me ever since
  9. The sticker kit is a generic one and most Bultaco parts suppliers will have the same ones Peter at http://www.bultacoaustralia.com/ would be able to supply individual original ones
  10. If you want it authentic a 158 shouldn’t have a sherpa sticker on the tank pretty sure they had the 1975 world champion sticker instead The sherpa sticker is from 198/199 models yours should have the round sherpa t on the side panels I’m not too sure if your model had the made in Spain sticker either If you bought the stickers in a kit you’ll probably find the the Bultaco tank sticker smaller in height and length than the original, in those kits they are 198/199 size Heres a link that has original brochures https://www.motoguapa.com/BULTACO/ArchivosBultaco4.html posted before seeing XXXX,s post that tank looks original so made Spain sticker was there
  11. That’s interesting David is there much visual difference between the hubs
  12. Woody is right they need a short length of pipe welded to the inlet about 11/8 od x 11/4 ish long They are louder but I think a much nicer sound the reproduction ones seem a bit louder than the original bananas I have a reproduction one on my 183 and a cleaned and repacked original on a 125.
  13. Being a 49 it wont have the slot I think all the solderless nipple bikes don’t have a slot
  14. I bought a new set of Bultaco betor forks with clamps out of the US a few years ago still in the box they were stamped Bultaco but the same style clamps as SWM / Italjet I guess unclaimed from the broke company
  15. Have heard money was tight and they using up what stock they had left in the end
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