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Bultaco

  1. Started by motovita,

    I just inspected the clutch on my 199A and found that the clutch plates use no friction material, just steel on steel. They were in pretty good shape so I put it back together with 75wt synthetic gear oil and it works well. I'm just wondering if that is the original type clutch and if there are any special oil recomendations for it. I know you guys will know.

    • 21 replies
    • 10.7k views
  2. Started by insultaco,

    Hi I need a new L/H Crank Case and Magneto Casing, will any other model in the range work? The old ones have been battered by a chain snapping. Will the 158 fit? Do I have to do anything to make any other case in the range fit? I don't want to have to start cutting it about and welding etc. Just trying to broaden my options. Cheers Mick

    • 20 replies
    • 6.2k views
  3. Started by toofasttim,

    2 and bit sherpas

  4. Started by myson,

    Hi, I have just split the cranks on my M80 engine and have found it has 3 main bearings. I was sure that it was only later models that had this feature. I also want to remove the two gearbox bearings that are located in blind holes, what is the best/easiest method? Cheers, Myson

    • 8 replies
    • 2.7k views
  5. Started by darrel,

    hi, could anyone please tell me the blue color for a bultaco 175 221, grabber blue or ral 5015.

    • 10 replies
    • 8.2k views
  6. Started by insultaco,

    I've stripped my M159 forks down and they have upside-down U-shaped spacers at the bottom of the springs, these spacers do not appear in either my Haynes or Clymer manuals. They are shaped like a capital U with a flare at the ends. Are they required or are they a mod' that has been completed by a previous owner in an attempt to pre-load the spring? Any ideas? I've got new springs, newly re-chromed stanchions (Philpotts in Luton) and new fork seals, so I'm not expecting them to have anything other than a "standard" feel initially, I can mess with the oil weight etc later. The general condition of the internals appears to be fine with no obviously excessive wear that mig…

    • 3 replies
    • 2.4k views
  7. Started by luddite,

    I have recently dragged my last remaining Bultaco from the back of the shed where it has spent the last couple of years in disgrace. A few years back I decided to try sidecar trials, so got hold of a chair which was once fitted to a '74 model 125. I purchased a matching bike which was running absolutely perfectly, but had trashed lower frame rails and other frame damage so was ideal for the project. Mods duly done, the bike was reassembled, but wouldn't start. Crank seals I thought, so I whipped a new set in. Still no joy. To cut a long story short I stripped and reassembled the bike (I didn't split the cases though, or lift the barrel) till I was sick of the sight …

    • 17 replies
    • 8.7k views
  8. Started by hightown,

    How do you know if the front fork nuts are working,What is the best way to clean them. Thanking you in advance, Hightown

    • 5 replies
    • 2.8k views
  9. Started by bondy,

    hi all dose anybody know were i can get a stronger hesdsteady?

      • Like
    • 40 replies
    • 16.1k views
  10. Started by klevdo_2202,

    Hi guys When I received my Bultaco the tank was very worn, needed spraying. We sprayed it and everything was ok, until the petrol vapour literally destroyed the paint work and stripped the stickers we had on it. I understand that this is a common problem. Does anyone have any idea of a cure? Regards, Kelvin

    • 10 replies
    • 8.5k views
  11. Started by myson,

    Hi, I am slowly progressing with my M80 rebuild and I am splitting cranks to replace gearbox shortly. I am considering having the crank rebuilt with new bearings but most kits include a new conrod. This adds a lot to the cost when budget is limited! Is it feasable to rebuild using the original con rod with new bearings or is there a good reason for replacing everything? Also, can any one recommend a good engine guy in Newcastle/Durham area to carry out the rebuild? Cheers, Myson

    • 5 replies
    • 3.6k views
  12. Started by bondy,

    hi guys whats the best way to ajust my clutch on my 350 199A i have a work shop manual it says bottom the clutch ajust screw and undo 3/4 and then tjghten the locking nut is that ok? cant do anything yet till i put the wheels on just got sum off ebay so when ive got them on and put the chain on then i can try the clutch hoping its just a littel tinker and not new clutch plats but if i need new plats then she will have them allso dose anyone know were i can get a stronger headsteady ive got new one on from bultaco uk i know sum have a blob off weld in the middel but ive seen a better metherd on a bike on here to bits off tube with flat ends and it looks like it strong just…

    • 0 replies
    • 1.2k views
  13. Started by bondy,

    hello all can anybody tell me where i can get a new seal for the rear brake hub? allao should the front hub have one? my bike is a sherpa 199A 350T

    • 4 replies
    • 2.1k views
  14. Started by bondy,

    hi all im unsure witch to get rack or trailer im going down cornwall next year with my bult would a bike rack be ok all that way or would i be beter off with a trailer? thing is my wife will be driving as i dont not sayin she cant drive ??????? ah ah but im just thinking with a trailer might be abit scary

    • 16 replies
    • 5.2k views
  15. Started by michaelmoore,

    I've got wheel alignment problems with my Model 159, even after straightening the bent swing arm and triple clamp. I've measured and drawn up the swing arm and cast aluminum rear engine mount and it sure looks like the engine case center is supposed to be on the centerline of the bike with the swing arm centered on it too. Yet with good sprocket alignment (fresh sprockets too) to get the rear wheel aligned on the front wheel the rim has to be pulled over towards the sprocket to the point where I've got serious concerns about the amount of thread engagement between the spokes and nipples on the right side of the wheel. Perhaps the new Buchanan spoke set is off, with the…

    • 13 replies
    • 6.5k views
  16. Started by bondy,

    hi all how mutch oil do i need to put in my sherpa 350 forks ive got castrol 10w fork oil allso whats the best gearing ive got 11 tooth front sproket what should i get for the back? ive been tojd 39 is the standerd would this be ok for geting up hills? im onley just starting to trials so i wont be going up any great big mad hills not till i get use ive just rebuilt my sherpa 199A just wating to get my wheels cant wait to try it got it runing needs tinkering with but cant do mutch till i get the wheeels think the cluts will need setting im praying it wont need a new one but if it dose ill cross that when i get it running by the way is it easey to put new clutch plates on i…

      • Like
    • 13 replies
    • 7k views
  17. Started by tomtom385,

    Hi, wondering if anyone can help, i am thinking of fitting a tow bar on my vehicle for a bike rack but need to know the wieght of a 198A Bully, i thought about 140kg??????????????????

    • 9 replies
    • 2.9k views
  18. Started by bondy,

    hi all has anybody had the clutch case upgrad by billet if so dose it make a big diffrance its

  19. Started by nickjc,

    hi guys im asking this question on behalf of a mate, he has a bultaco 250 and wants to know how much gear oil it should have, thanks for any help, Nick.

    • 2 replies
    • 1.7k views
  20. Started by bobtlr,

    Hey, can someone send me a link to the movieclip of a white bultaco (puma?) that is ridden in spain by a very good rider. i have seen it once but i cant find it anymore thanks a lot! best regards bob

    • 8 replies
    • 4.7k views

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