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Bultaco

  1. Started by twin shocks,

    Hi guys, have recently acquired a 1974 sherpa t 350 in near original condition. The problem I have is starting. There is plenty of spark and after removing the plug and priming the cylinder with a small amount of fuel the engine will fire and run drawing fuel from the carburettor. It revs freely and does not break down. However the engine will not idle after being warmed up, on shutting down will not re-start. It appears to lack the initial fuel delivery to the cylinder to start. The carby is Amal Concentric disassembled and cleaned 3 times. I would appreciate any input to solve this problem. Regards Michael Leahy

      • Like
    • 5 replies
    • 3.5k views
  2. Started by scot taco,

    I bought a m98 175 Alpina engine on the cheap last year to build for a trials bike thinking the trans gear ratios would be the same as a Sherpa T.They are closer to a Pursang ratios so I don,t think they would work to well for a trials bike.Would a m49 trans be a direct swap? I,m going to put a 250 top end on it so is there anything else I,m missing that would need to be changed?

  3. Started by kutter,

    Hi All, This is my first post to this forum. It looks like a great resource. My Name Is Jeff Harkins, I'm a custom knife maker living in Montana. I am also a Gas-Gas dealer for our neck of the woods. I recently got my dream bike a restored 1974 Sherpa T350 #92xx. I haven't had a Bultaco in 30 years so I'm a bit rusty on some things. First, the main problem is it wont start. I rebuilt the Amal 625 carb, all seems to be fine. I Checked the coil and grounding. No BIG blue spark but I could "FEEL" it. Before I attempt anymore checking I have a few questions. 1. How do you check the fluid levels? Is it if you can't see any fluid then it needs some. 2. There seems …

    • 26 replies
    • 17.4k views
  4. Started by ocatlub57,

    Could anyone tell me the paint colour / code for a 1972 Sherpa (red) tank please? Recently bought bike and it seriously needs repainting - been done previously with a yard brush!!!

    • 2 replies
    • 2.2k views
  5. Started by bulltaco,

    Can anyone suggest/recommend someone to knock out some dents and repaint a Sherpa aluminium tank, 199 type. In the UK.

    • 0 replies
    • 1.6k views
  6. Started by jhimboden,

    Hello, my name is John and a first time poster. I've got an extensive post put will try to get to the point. I have purchased a 1968 sherpa T250(my first 2 stroke). Restored 2 years ago and has not been started in a year. I started the bike, fires up in 1 or 2 kicks, idles very well but as you come off the idle circuit it begins to miss(not backfiring) and misses through all throttle ranges. I have checked the amal carb and everything appears fine,good pilot jet and circiut,needle jet good(.106),needle good no grooves or wear, main jet good,no air leaks, slide is snug. Float is set at .080" below top of float bowl. I have several Triumphs, BSA's,Ariels,Matchless so I ha…

    • 12 replies
    • 5.7k views
  7. Started by scot taco,

    Would any of the Alpina model tank and seats fit on a 199A ? I was thinking that if it could be made to work that I could ride it on a dual sport ride.Also any thoughts on if that would be a good or maybe not so good of an idea are welcome.

  8. Started by mexbiker,

    Hi there, Have finished stripping down the front end of the recently acquired Sherpa type 125 and, as suspected, have found that the triple clamp is bent - is the triple clamp assembly unique to each particular type / model of Sherpa or if I find one from another model will this fit (I ask, since there is a complete triple tree from a '68 Sherpa currently advertised on EBay!). If the assembly is unique to this particular model, can somebody point me in the right direction regarding where to start looking for a suitable replacement? Thanks again in anticipation for your assistance. Regards, Richard - Mexico City

    • 3 replies
    • 2.8k views
  9. Started by sir dabs alot,

    I'm trying to figure out what the differences are between a 1978 Sherpa-T (the red ones): http://ventura.craigslist.org/mcy/1897363687.html and the 1979 (blue with blue frame) 199A?: http://pittsburgh.craigslist.org/mcy/1861908943.html And the blue tank, white framed Sherpa-T (199B?) Is it just colors or are the frames, geometries, engines any different? Thanks!

  10. Started by arthursal,

    Hi folks,i'm new to this forum,i have a 1973 sherpa 250,i also have a BSA B25 in bits,what i need to know is can i swap the bultaco engine for a B25 engine.I rebuilt the sherpa engine twice first time fitted a Sammy Miller crank rebuild kit,this lasted 773 miles,then got my brother to machine an exact replica heat treated properly. Low down engine speed is fine but on the road the engine seems to 4 stroke i have the original exhaust pipe (fisrt long & second triangluar)fitted,or is there a way to make the sherpa run smoothly???. Any help will be appreciated. Yours ARTY

    • 9 replies
    • 5.7k views
  11. Started by cuzzy,

    Hello All Working on a set of forks for my Model 10 project and have a couple. of questions which I hope all of you with more Bultaco knowledge than me can answer. On stripping down the forks I have found that the damper components have suffered from corrosion as can be seen in top photo, so does any body know if these valves are available ? if not looks like a job for my lathe and milling machine. Second question is how does the bottom aluminum fitting come off the damper rod is it threaded or press fit any advice before I start as I want to limit damage.

  12. Started by dabber,

    Looking for a couple of shock bushes - Inmotion or SM don't stock the bushes alone. Any ideas?

    • 5 replies
    • 1.7k views
  13. Started by bogwheel,

    Just wondering what the preferred shock length for a M199 is please? I currently have 340mm and i am looking at new Hagon shocks (1 - cost $150 cheaper than Falcons and 2 - the guy that did my suspension on my EC300 gasser says they are good value) The hagons only come in 340 or 370mm centres. Is 370mm to tall and would it make the front too quick? thanks

      • Like
    • 12 replies
    • 8.4k views
  14. Started by hoodie2,

    Got a Bultaco Sherpa m80 project. The swinging arm has two badly rusted bolts welded on for shock mounting. Don't really want shock bushes running on a course thread. Does anyone know if you can buy weld on threaded bosses or get the right size threaded bar or will I have to get something made up? Cheers.

      • Like
    • 5 replies
    • 3k views
  15. Started by rlk_76,

    Hi, I'm wondering if there is a way to tell if my rear shocks are rebuildable. I don't know much about them. I have an m49 model ending in 00976. Assuming they're stock. I'd like to not have to invest in a new set for cost purposes. But I may have to. It's it hard to rebuild these? Thanks

    • 1 reply
    • 1.6k views
  16. Started by duncanstokes256,

    1978 Butaco Sherpa T 350. Nearing completion of the re-build and just fitted electronic ignition, cut out switch - interested to see where you've all fixed the coil/HT packs and routed all the wires? Cheers D

      • Like
    • 3 replies
    • 1.8k views
  17. Started by chappo,

    Can anyone help with sourcing a new/secondhand sidestand for a 199b. Searched all the usual places to no avail. Thanks.

      • Like
    • 2 replies
    • 1.5k views
  18. Started by bondy,

    hi all is there anything to stop the side stand spring damaging the paint on the swing arm?

    • 3 replies
    • 2.6k views
  19. Started by lbhbul,

    Nothing else to do as the lake is on the rise so there goes my spring fishing!! Just thought I would share another fine mess I have gotten into, this tank which has been up on the very top shelf for ages just begged for some help and made nice for my m199, alas it wasn't so good & after much head scratching , decided I'll just cut you open & try to clean up all the stuff the PO,s have done over time; raw resin. pieces of fiberglass mat, & mostly done without proper cleaning, so hence not much bonded, so was impossible for me to get clean for a proper lining job. We'll see how it goes! Larry

      • Like
    • 7 replies
    • 3k views
  20. Started by smelling123,

    Hi, Where is the gearbox oil drain on the 199a Bult? Doesnt seem to be in the same place as my 190 - or am I cracking up... thanks in advance..

    • 3 replies
    • 2.2k views

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