Bultaco

Hi all, Could anyone tell me should there be some sort of seal/rubber betwwen the rear exhaust section and the middle silencer on a 78 Sherpa. If not what stops gasses leaking from that joint. My bike leaks from there but because I am out of country I havent had a chance to strip it yet. It would be handy to know so I can order parts ready for when i get home. Cheers Marty

i have a 199A frame which i am gathering spares for to do up. Is there any difference with the double crown clamps between different models also will a 159 swinging arm fit on a 199a frame? only asking as there seems to be loads of spares for 159's kicking about but 199a stuff is hard to come by

My 199b runs great when first started but as time goes on performance degrades substantially. By the 3rd loop she is knocking and chattering as if running out of fuel. Let the bike sit for a while and the bike gets better. Carb is original rebuilt and is clean, new points and condenser last year. Any suggestions?

Has any one made a clutch spring compressor tool for the pin style clutches? I would love to get the dimension and make one up. It is really difficult to push in springs and pull the tiny pins with the motor in the frame. PS Going to look at a Montesa Cota 348 tomorrow. Any tips or part sources in Canada/ USA? Thanks Sunny

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!

I have the Haynes parts diagram but it looks a bit different than what I found when i stripped the forks down. I found two seperate seals with metal rings in each fork leg (4 total). Should there be 2 per fork? It also had no retaining ring or circlip or a groove for one? The seals I have found locally at bearing shop have no metal ring. should it? Or just rubber? The forks were very soft and I could compress easily and it did have some oil on the forks will new seals solve the softness? What weight oil should I use? I weight 250 lbs. I will be just riding trails and gravel roads etc.. Thanks for the help. Sunny

Hi, I'm rebuilding a '70 Sherpa T and was wondering if anyone has experience with gas tank restoration. The bike ran fine until it sat in a barn for the last few decades. I'm wondering the best way to clean it out and if sealing the inside is recommended. I have zero experience with fiberglass tanks. Any tips are greatly appreciated. Thanks. Ryan California USA

How might I identify a Bultaco Model 124 & what are the + & - of this model, best sprocket sizes, useful info etc

Got to be a bargain for Big John ?? http://cgi.ebay.co.uk/BULTACO-SHERPA-TWINS...fd#ht_500wt_975

Hi all, Can anyone suggest where i might get hold of a right hand side outer engine casing for 1975 Sherpa T 250 (model 150). It is the right hand side outer casing with the clutch adjuster that i need, as mine is cracked. I have asked Bultaco UK (Egham) and they only have knackered/welded/cracked ones - nothing usable. As a long shot, I have also asked Hughs Bultaco in NY. Is there anyone else i could try Any advice greatly appreciated. Cheers, Max

Does anyone know the frame numbering sequence for the 340 Sherpas modified by Comerfords?. I saw a 340 recently that looked like and was claimed to be a Comerfords bike. It had the forward top mountings for the rear shocks and the larger s/a mounting plates to take the swinging arm forward to within a few mm of the engine casing but the swinging arm itself was of heavy oval tube and I thought they had rectangular ones made by Whitehawk. Or maybe that was an extra?. How many 340s were made in total?.

Need some help figuring out what I have. I know its a 1978 Bultaco 199 but I have some confusion because of the frame. I purchased the bike a few months ago from the original owner in Colorado. It had the original Colorado title issued in July, 1978 with the proper VIN # that matches the frame and the engine. My problem is that the frame looks like a 199A. It has the aluminum skid plate, split rear swing arm, etc... I have a friend that owns a 1979 Bultaco 199A and the frames are identical. One person told me it was a Sammy Miller frame but don't those have an SM Serial #? Mine has the standard Bultaco JB-199032XX with a matching serial # on the engine. Were th…

Hi, Aplogies if this is a very basic question... I have just removed the head and barrel from my 75 Sherpa 250 (150 model) for blasting/painting, but I am now having trouble comressing the 2 piston rings for re-installation of the barrel. How do I compress the piston rings, so i can drop the barell back over the piston? The Haynes manual says to use a 'ring clamp' is this different to 'normal' ring compressor? Any pointers much appreciated. Thanks, Max

Hi Has anyone got a RAL number match (or any colour match) for the Bultaco red on the M49 or M80 fibreglass. Thanks in anticipation. Regards Sparks2

decided to use the top end off another 340 that I've been restoring in order to save a little money putting my stolen bike back in service. I notice that the piston on this bike has no holes drilled in the sides as my other 340 has. Both jugs are identical. Will this make a big difference in performance? What is the purpose of the holes if the motor will run without them?

Last year I adopted an unloved 199A Sherpa T. Like most children it has absorbed large amounts of money and is still far from perfect. It seems I have the engine, suspension and brakes fairly well sorted now. After a good ride in some intermediate level sections this morning I think the best improvement in rideability I can make now would be to lower the footpegs (I'm fairly tall). Does anyone have photos, templates or advice to offer me? My intent is to compete occasionally on this bike in both modern and vintage events. I want to keep it vintage legal but it is far past the point of ever being a show bike. As of now it has a left side brake on it which doesn't par…

Well didn't know if to start a blog or a forum topic but chose the latter. Some of you know I have a 199B Sherpa amongst my twinshockers and it's been with me a long time, BUT I had a long hiatus from the sport and a shorter one out of the twinshock business. Being slightly disinterested for a while meant I didn't even look at my bikes let alone look after them much, they had been in storage and thats about it. All "Fired Up" again now though and really feel guilty I left my bikes for so long, I also realised I'd lost out on a lot of fun. So my punishment begins! and the bike was completely torn down when I returned from a trial last Sunday. Took all of an hour to…

Is there any specific symptom that can be caused by a partially blocked (or misplaced baffle) in the front muffler please, before i cut it open? I have a running problem only when crawling along at up to 1/4 throttle opening - pinging / jerky / like pre-igniting. Bike is very responsive otherwise. Have new seals , bearings, piston, carb, ignition. Have done a leak down test - ok. Have tried a lectron / bing / oko carbs all with different combos of jetting. Have tried different timing settings. Muffler was repacked not so long ago by cutting a section out of the back near the bracket and maybe i was too aggressive at stuffing material back in and dislodged baffle??? …

I bought a book at the Flea Market held every Sunday all Summer it was a 1st edition Don Smith's "Ride It" ($1 CAN) and mentioned to seller that I had two old Bultaco's. He replied by saying that he had a few Bultacos in the past and might have some more "stuff". I told him I would be very interested in buying it. I have bought a lot from this seller over the last few months. His father was a Snap on and Hazet Dealer and he has some cool stickers, badges, and dealer stuff. This past weekend he presents me with a pastic bag and the contents included an old jersey a bit too small for me, Tie clip, and what I think might be a lapel buttton or cuff link. I think I over pa…

Trying to contact Sammy Miller Products via email. I think they have a new site, but no email address listed. If someone has it can you PM me with it? Thanks!