Bultaco

Hi... I'm considering replacing the original clutch plates on my Alpina with more modern "friction material" as available from a certain well known Bultaco supplier (that I may not be supposed to mention by name but I'm sure it's pretty obvious). So... Is it worth the ninety odd quid it's going to cost me? I should say, I'm in the middle of restoring the bike (1972 175 Alpina) and have not really tried the original clutch to see if there are any faults, just thought it easier to do now if it's worth it? Thanks in advance... Dave

Hello iv'e been looking at converting my front wheel to dic brake am only thinking about it at this stage just wanted your thoughts on it. if i do it i can easy change it back to standard hear have a look at this. also i may put 199B S/Arm on the 198A frame.

I need help from you Bulto experts(please)!What is the best way to achieve a one finger clutch operation on a 199?Years ago I used a front brake actuating arm on the clutch to give more leverage(but I'm struggling to get hold of one at the moment!!!)and also backed off the clutch nuts at the expense of clutch slip when pulling a high gear.I can probably rig up a lever system in order to give some mechanical advantage,as I have on my B40 but on the Bult it will be difficult to package it neatly.Any suggestions?Also,is it worth replacing the Bing carb with perhaps a Mikuni?Your replies are appreciated!

Hi, I have scraped all paint off headstock and cannot find a frame number. The heabstck looks like a different material from rest of frame and it didnt have original silver paint(frame has been painted a horrible colour over original) Could frame be more recent than engine, it looks like M-80 and has slimline tank seat unit. Could it have been altered? See link for photos Cheers http://s810.photobucket.com/albums/zz27/myson/

Hi, I'm Scott from the UK, I have just recently signed up on here, I am in the process of restoring a 1976 bultaco 159, I'm wondering if anyone would know the steering bearing number, this is the upgraded taper bearing and race? id like the number to I can source one from my local bearing shop.

I'm re-building a '76 model 183 Sherpa T 350 that has the bigger "clubfoot" shaped muffler which I was thinking of replacing with an earlier style "banana" style muffler, is this a good or bad idea? Obviously Bultaco put a lot of R & D into those clubfoot's with all those internal chambers and such but, I prefer the aesthetics of the banana muffler as well as it being about 1 kg lighter than the clubfoot (according to inmotion website), but am curious how it effects performance and is it possibly too loud. Anyone experimented with the two on a Sherpa T 350?

Hi I am restoring my 73 Bultaco Sherpa 250, and need new rear shocks. Looking around NJB, Betor and Falcon all supply shocks that will do. The setup and rebuildability of the Falcon shocks appeals, but realistically for me, possibly an unneccesary expense. Does anyone have any advice or opinions on which shock would give the best performance and value for money. Regards

Having rebuilt the Sherpa engine and had it running beautifully I then go and pour 2 litres of Diesel in when refueling. I gave the tank a quick wash with straight unleaded, kicked over the engine lots, cleaned out the carb and replaced the filter and plug. Still running like ****e. The video is at half throttle and pic of the new plug. I plan on dumping the fuel in the tank as presumably the tank was still coated with Diesel, washing again with unleaded and re-cleaning the carb. Any other suggestion apart from stopping being so stupid? Should I try and wash the crankcase somehow? Hope this gives you all a good laugh :hyper: Netley.

Thought some of you may be interested in how the project was coming along !!

Hi, Has anyone have any experience of the Butaco Sherpa Alloy Fuel Tanks currently for sale on Ebay? These are made in India just wondering what the quality is like. The pictures of them show an unfinished tank without a Fuel Cap. Any comments are welcome. Old Geezer

Hi, Ive got a 198b and the flywheel seems to be about half the thickness of my older 190 model. It may have been machined down but if so, its a good job as it looks 'factory' if that makes sense. Does anyone know if the 198b engine was any different than earlier models? thanks Stu

I need to know any (if any) basic design changes of the Bultaco 350 Alpina years 1974 to 1975, 1975 to 1976 and 1976 to 1977. I do know in 1975, the brake and shifter was moved to the right and left, respectively. Primarily, I need to know design changes regarding these items: Suspension (travel length) on front and rear, rear suspension mounting points, frame changes (including any engine mounting point changes) and swingarm changes. I may need to buy Haynes manuals for each year to get detailed specifics (part numbers), but any help from you will greatly be appreciated. Thanks.

Group, Need some suggestions: I ride a Model 92 Sherpa T in Trials. Totally stock bike, points, AMAL carb. Great bike, runs fine, rebuilt about a year ago. Plenty of power, very good throttle response. My problem: It isn't now, and never has been a "first kick start". 5 to 7 kicks when cold and usually 2 or 3 when warm. This is a real pain in Trials where you have to start the bike about 30 times in an afternoon. Any suggestions to improve starting. I don't even care if I loose a little power. Thanks in advance. Alan

Wahoooo,my Sherpa just arrived.1st one I’ve seen in the flesh lol....GREAT

I have the cases apart in my Sherpa 350t 191 and have been told to have the gearbox in the left hand case so I thought I'd put it back together without the crank to keep it all together. Long story short I end up with a mixture of cogs in a heap. I have assembled it the way it seems to "want" to go together but the images I have are very poor so I have no idea if it is right. I still have to swap the mains bearings over so I have photographed it and will dis-assemble before tackling the bearings. Anyone know of a good account of how it goes back together ? Cheers Neil

Hello all, I have been lucky enough to purchase a 1968 Bultaco Sherpa Model 27. It has not run for 15 years and needs a full rebuild. The previous owners have made some odd modifications such as mounting the stand on the left side and looks like they were going to have the brake and gear change on the right side. At present I am trying to collect the correct parts to put the bike back to original. One item I cannot find is a left side rear brake pedal. I know some new replacements are sold with a serrated pedals like a more modern bike but the original has a solid pad more like the brake on a normal road bike. The length is short being 175 mm…

started to put clutch back together bought new push rod mushroom push rod and new ball bearing. when I took it all apart the long push rod was ok so was the mushroom push rod but I had no ball bearing? instead I had a short piece of tapered rod about 10mm long . any ideas

Does anyone have a diagram of a 340 6 speed gearbox please. Split it several weeks ago, put it back together today and it seemed to find all the gears when manually using the shifting drum. Put the other casing on ( without the crank ) inserted the gear selector shaft and shifting trigger mechanism and it wouldn't engage a gear. Done a couple of 5 speed boxes before no problem. Serves me right for not doing it all at once. A diagram would greatly assist although I bet they're like hens teeth. Its either a selector in the wrong sequence although I don't think so or the shifting trigger mech, but again they look ok. Something to ponder over gen…

Just wondered cos i have a spare front end from an OSSA gripper languishing in the corner of the shed and one of the main things that puts me off riding the 199B is the orrible feel of the tiller steering so just wondered if anybody had tried non leading axle forks? Using the Ossa yokes as well would also get rid of the tiller effect which feels very strange. Funny thing is in their day i dont seem to remember it bothering me but it does now.

Hi Boffins just joined what i hope to be the best forum for info exchange and problem solving So can anyone tell me why my Bultaco sherpa M80 has what seems to be original front lower engine mountings ground off .... ? 2 extra mountings on the upper frame for no apparent reason and finally the letter G stamped on the headstock ?.... have included pics very interested to read yr views chaps Best regards Frank