Bultaco

Thanks for all of the suggestions, help and personal messages offering assistance. I have got the cases back together. I heated the right side in the kitchen oven when the wife was out and it slipped right on without even using a rubber hammer. I have now started to assemble the ignition/flywheel, the gearshift etc.... I just need to get a few new things a seal, a lock nut for the kickstart spring holding nut ( is that avaliable?), the four long studs to hold the cylinder and head, a new set of rings (which i have to figure out what size they are), a holding washer for the sprocket, so really not all that bad considering it came to me as a basket of parts that changed …

Hi Guys I bought a model 91 on E-bay about a month ago and cannot start it. The engine was reported to be a runner - but that's another story! When kicking over I get a god spark - the plug's a BP5ES, but the engine doesn't fire. I've had the carb apart (Amal Concentric) and notice the slide (with needle) is a very tight fit in the bore of the carb housing. I think this could be the cause of the problem and intend to polish up the slide using crocus paper or similar to make it freer to move. Any other places to look? Roger B

What year (if any) did Bultaco go to primary kickstarter?

Comerford Vesty Bultaco This bike advertised on Trials central is not what it says it is......... Dave Renham Bultaco Uk Tel: 01784 440033

Before photo I bought this Sherpa T M80 in the spring of 2009 for $150 Canadian. The previous owner had the bike since the mid 1970

I got the last few important things worked out and "rode" the bike around the yard today. Still need new rear brake pads, switch the rear tire out... it is too big rubs on the muffler a bit, and to dial in the front brake for better performance. I have been bitten by the Bultaco bug. I posted an ad on the local internet classified ad site and was offered two Bultacos. I am to pick up friday The one not pictured is a Matador (not sure of the model #) I got all of the stuff in the photo and the matador (condition unkown.. motor is on the left in a box in the photo)

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

just found a site on the interweb and someone makes these !!! and just to prove there hand made models all i can say is wow

A friend of mine is about to start renovating a Model 10. Can anyone tell me where he may aquire a parts list and manual for this bike. Thanks Tommy

I am sure it has been mentioned somewhere here but a quick search did not turn up the answer. What NGK plug to I need for my almost complete M159? I have ordered the rings and clutch thrust bearing. I have turned a box of parts into what I hope will be a running engine.

New Member Group: Members Posts: 4 Joined: 29-July 09 Member No.: 9582 Bike: Bultaco Sherpa Hi All Since my last post I re-assembled the carb after checking all jets and passages were clear. Also float and needle valve looked OK. I managed to fire the bike a couple of times then the engine died on me. Found the HT coil lead to spark plug was broken so bought a full electronic ignition from Bultaco UK rather than mess around changing points and condenser etc. Just fitted that and am getting a good spark but still engine won't fire. I'm getting fuel seeping out around the tickler on the carb but the plug is dry?? Any suggestions? Should I now check cranks…

Here are a few shots of the recently aquired Bultaco's. Matador Mk 3 M70 Sherpa T M159 These are literally basket cases both bike have engines pulled and in multiple boxes. I just started to sort out the boxes and try to figure what goes with what. It also came with an old engine serial number M 400... D

3 weeks ago I picked up a 199A (1978 or 9 350) to try my hand at vintage Trials. I got a very well used example but it started right up and seemed to run fine. I rode it almost daily as I replaced various rotting rubber parts, missing fasteners and such (including a new air filter). It always started easily and ran well. Last weekend was our premier at a local vintage Trial. We both were doing well,considering our respective age and condition (me and the bike). After the 19th section as I rode slowly between sections the bike died as if running out of fuel or fowling a plug, not a clean cutoff like hitting the kill switch but a brief on/off, trying to stay running before …

I just aquired a Bultaco Sherpa T 199B model thats in need of resto. I had to cut the swingarm pivot bolt off to remove the swingarm. Hammering away at the pivot did nothing except leave me with bent frame mouting tabs where the pivot runs through. Heat didn't work in helping the bolt come out. I would like to know how much play is between the swingarm bushing ends (the steel inserts) and the frame? Could anyone tell me the width between the frame from side to side at the swingarm pivot? If that is a problem, how about the width between the frame and the rear engine mount? Thanks

I have a model 92 Sherpa 325 which I have spent a lot of time working on and refurbishing ready for the winter. However the frame is bent under the headstock and also has taken a big hit to the underside at some time. I would like to replace it with a frame the same, I think my serial number is about 900 or 1000. Wil any 91 / 92 mk1/mk2 frame fit okay with all my existing parts / 325 engine? Can anyone point me in the right direction for one (Ideally I'd like to keep it all 92 model) Thanks

I have a 350 Bultaco from the seventies that is a definite restoration project, but I don't know just what it is. It has twin plugs which I thought would be for a quick change over mid section if the other plug fouled. But now I'm wondering if it is a moto crosser Pursang. Anyone have any thoughts on the matter, cos' I'm going to sell it and have no idea what to ask for it.

Hello again, Refering to my 64mm stroke crankshaft in my 325 sherpa t engine, that should be a 60 mm stroke. Am I disappointed after fitting a new rod kit and assembling the engine cases.You better believe it I am. Should I have checked the stroke? Maybe I should have.But in my defence I bought it as a basket case. Well I have a Italjet 326cc engine spare sitting on a bench in the shed.Does anyone know if the crank out of it will fit my Bully.I know they share common piston's and rod kits.They have the same flywheel.They share the same bore and stroke.I guess I could strip the engine ,but the work benches are full at the moment. So if you can help it would be apprec…

Can I use these bearings on the crankshaft? They are the same size but does it matter that they are sealed? I have to heat them to fit them back in to the case. I have started to re assembly the engine that came in the basket case of parts. It appears that almost all of the parts are there except for a few. The other question that I have is if the kickstart assembly looks like it is set up properly? I think I have but this if my first time doing a rebuild. Thanks for the help Sunny

I plan on upgrading the stock 28 mm Bing T84 (the slide is badly worn and I'm told virtually impossible to replace) to a Mikuni 28 mm TM flat slide, VM 28, or VM 26 round slide. Does anyone have experience with any of these carbs on a 199A? Will the 26 mm work well or is it too small? I've been told that the smaller bore might boost low rpm performance. What jetting/needle combination works at 1500 - 2500 feet? Thanks! tightwoods

Hello, I'm fitting a new piston kit to my 159 350 and I have had to fit 3 base gaskets to get the piston height correct.Is this normal?It's a mahle piston. I've also had to machine 2mm from the exhaust side of the skirt as well.My bultaco dealer said I may have to modify the piston. So I just thought I'd ask if anyone else has had to carry out these mod's while fitting a new piston kit. Thankyou