Bultaco

Hi all, Hope that you can help! I am currently in the process of restoring my Dad's old Bultaco Pursang Mk5 125cc and have stumbled across wiring problems. The project is for his 60th birthday and was left to rust in his shed for over 40 years! I'll add some pics below to show progress. The engine has been rebuilt recently and I was told that I was lucky to have a functioning Coil and Stator as he told me that the engine was sparking when it left his shop. As the frame has been powder coated, i made sure that the engine is grounding to the bike by removing the powder coat at the bolts. the problem i have got is 4 wires... yes 4 wires. I …

hi the 199A gear box is the any spacers where gear box fits on the lay shaft?

Hi all, I brought a new fibreglass seat unit from Inmotion. Having cleaned it up where it fits around tubes etc. It appears to be too wide.A pal and work colleague reckons the same and say that he had to cut his in half and remove a lump to make it fit nicely. Is this normal with this unit ? Fibreglass isn’t my thing and the thought of doing this is rather scary. But I want it to fit well. thanks, Andy

It’s not mine , I surf web ebay , all time there a Sherpa 199a right engine case for sale , maby you like , cheersss

I can get m3.5 nipples in plated brass from Sweden . Trouble is the minimum UPS delivery is £17 . The spokes cost £18 for 36 . On top our rotten customs and post office are going to want to extort further . might be worthwhile if the delivery cost was spread among a few people in UK .

I’m in the process of rebuilding the Spanish Amal 930 concentric on my 1971 Lobito 175 Mk4. The needle jet is stamped 106A, and that’s what is listed in the owner’s manual as the correct jet. Amal concentrics had long and short needle jets and some jets were for 4 stroke applications, with others being for two strokes. I have seen lots of Amal needle jets for sale that are designated 106, but not 106A. Does anyone know what the difference is? Thanks for any help!

Just a quick question Is it possible to fit the pursang or frontera 370cc barrel on a 138 Alpina 350

Hello I have a model 92 Sherpa T 350 that I purchased as a basket case. I am trying to figure out if I have the correct rear brake plate. I have 2 rear brake plates but don’t really know how to tell if one of them is correct or not . I believe mine is an early 70’s model. Any help or pics you can post would be appreciated. I will see if I can some also.

Hi everyone I have a question to ask ? Are there different size magneto,flywheels ( internal),I ordered an electronic ignition system from in motion to replace my FEMSA ignition system,I have not been able to ride for 5 years now and wanted to upgrade to make starting easier. On receiving the parts I set about removing and replacing ignition system as directed only to find on trying to start no spark, checked wiring,plug etc,no spark .on removing everything again I looked at the original fitment to flywheel/ magneto to find the electronic system doesn’t fit anywhere near as snugly hence no electrical connection so no spark

I am nearing completion on the restoration of an Alpina model 138 and am looking for the paint code, or the name of the orange/yellow paint on the side covers, and the swoosh on the tank. Any assistance or insight is appreciated.

Hi folks. Any help would be appreciated please. I have recently acquired a model 10 engine that seems to have the wrong clutch or counterweight, this is causing a problem because the sprockets don't line up for the primary chain. I think that the problem is with the counterweight, as i think the clutch is correct. It is located on its shaft with a woodruff key, but not 100% sure. If any model 10 experts could chip in it would be appreciated.

Should these be nut on studs are are some bolts. Right hand rear where there should be a head stay is a bolt but the others as far as I can see are nuts on studs

Hi all I've had my 1981 199b for about 3 years now it was a bit neglected when I bought it since then I've replaced a lot of parts,paint work ect,new tyres I'd like to move it on as the wife doesn't want me to do any silly off road stuff just wondering what values are at this time,road registered with lighting kit ect

Hi. Just got a 199A and the throttle seems very heavy and the carb spring quite strong, stronger than I remember. Does anyone know what the free length of the spring should be, the number of turns and the wire diameter. The old twist grip is knackered. Anyone recommend a fast or slow domino right angle twistgrip and suitable cable. Thanks Tony

What is the procedure for adjustment of the clutch on the Matador? Is it like any other where you loosen the locking nut and turn the screw in until resistance and then back off 1/4 turn?

Hi, I hope some of you more knowledgeable Bultaco owners can help. i have a model 90 that has been fully rebuilt and it’s fitted with 36mm Mikuni carburetor and new electronic ignition. Its an absolute pig to start, but when started the motor sounds strong and will happily rev to 6000 and will tick over, but when riding on the road the engine runs very erratically and will not push through 5000 revs. The engine after 1-2 miles will start to misfire and run really badly. I have changed the main jet, pilot jet and needle with no joy. I now wondering if I have a dodgy ignition system ? Any advice? thanks Mark

I bought a 199A. It would not start when I went to collect it but owner said he had had it started to check it was OK that morning. No spark, but when we removed the plug but it did look as if it had run. Got it home cleaned the points and checked gap whch as correct. There was now a spark but may be not as bright or as consistent as it should be. Still no start although I think it fired a few times. Tested the HT coil and secondary winding was open circuit so bought new coil from Inmotion. Slightly better spark but still no start. Had the condenser checked by an electrician. No Mf capacitance so ordered one from Inmotion which has just arrived. When removing the fly…