Bultaco

hi does anybody know what size the spark plug hole is?

Hi Bondy, What was the answer to this? .

hi all anybody had the spark plug hole heli coiled? ive just had me top end sand blasted. and when i got it back i tryd the spark plug it was tight gpoing in thought it was hod as it whent in easy before im having to of my treads heli coiled on the magneto cover so will i be able to have the plug hole done?

Somewhere i was advised to strobe / set timing on an electronic ignition at 3500prm (Electrex World) If this is so, could someone enlighten me as to what throttle opening this would be please? M199 sherpa- Many thanks

can any one give me addvice on how to fit the seal on the clutch case of a 199A its on the out side of the case were the gear shaft comes out ive tryed puting it in but its really tight. and i dont want to damage me cover any help would be great

Anyone got pics of a 199a or similar in non-standard colours, or modified? Just looking for some inspiration....

Hy boys I was always wondering, how much better a more modern than the 40 years old Amal 627 carb would be on my M49 Bultaco. After succesfully fitting an Oko to my Honda TL 250 (ok, quite similar to the Keihin, as it is a copy, but was tricky to find out the good jettings), I did it again an bought for 80$ form ebay (Taiwan) a 24 Oko. I once read an article in todotrial, comparing Oko and Mikuni to a modern GasGas 250, main jet 120, slow 45. This is my starting point now in the 1968 M49 Bulto. Has anybody experience with an Oko and jettings on a Bultaco? Any advice is welcome, as it could be time consuming and frustrating to try & error... (On my TL 250 4 stroke …

As above, my airbox was in half a dozen bits, so got binned long ago. Thinking about just sticking a K&N style cone filter on, and extending the mudflap down far enough to keep the crud out/making up some kind of alu. shield. Anyone else done this, or could advise if it'll interfere with jetting? Thanks again Chris

Any one got a source for spokes for a 199a? Undecided whether to get stainless or regular steel (any advice here appreciated)- being tighter than 2 coats of paint, I think I'll go for plain steel and keep them clean, depends how flush I am at the end of the month. Going to have a bash at re-building the wheels myself. Should take my mind off the kickstart spring if nothing else....

hello guys i have recently taken up trials riding and upgraded the old lady (sherpa 350)as best i can and she has become a phoenix its just me that's rubbish,the question i have, apparently my handlebars are like a"" heiland coo!!""so i chopped an inch and a half off each side , much better but an told still wrong angle ,i have decided to buy a renthal bar with a height of 5.5 inch,does this sound like a reasonable idea ,the frame is 159,regards Murray

hi all im changing my kick start return spring i have heard there not easy to put on so i need your addvice please.

Hi all The float needle assembly on my 1966 Sherpa T Model 10 IRZ (24mm)carb recently became sticky.I think I have managed to resolve this at least for the time being but a couple of questions a) how do you remove the float needle assembly - not certain whether it's a push or threaded fit no doubt IRZ carb spares are as rare as hen's teeth but does any one know where I might source parts if required; in particular a float needle assembly. Many thanks Roger

hi all i have a alloy tank on one of my bultacos im thinking about having it powder coated the paint thats on now has bubeld were the exhaust gose under the tank any addvice?

hi all whats the easyest way to prep my barrol and head for painting? i did the last one with paint stripper but that was pain stackin would it be ok if i justed cleand it with gunk and spray it ive got pj1. i was thinking of getting it grit blasted if i did whats the best way of protecting the barrol?

Hello everyone Just bought a alloy tank for my Bultaco. I was just wondering what are the best type of decals to get? Waterslide (SM Products) or printed vinyl (Inmotion)? Or any other types you may recommend. Cheers in advance, Kelvin

How do you judge the wear and if a replacement is neeeded on the duplex primary chain fitted to a Sherpa.

Hi Guys My bike ( a 1975 159 325 ) has been sitting for a long time and the carb was full of gunk and the orings has rotted away. I cleaned the carb up and ordered some orings from Bultaco UK but it's not all all clear where the 3 orings actually go and the exploded diagrams dont help either Can you tell me where they go please It looks like oring 3 goes in groove C oring 1 fits the diameter of slot A but doesnt seem deep enough - thick enough - ie in can move up and down the groove I have no idea where the other oring goes ? Hope one of you can advise

hi all ive got a problem with my forks on my 199A when the handel bars are stright the front wheel is off to the right. ive had new bars the stantions have been rechromed the yoks looks stright so what could it be?

hi all dose anybody know were i can get my alloy tank restored? its got a crack in the top. im in the north west area

hi all whats the best paint for my bult exhaust? i want a satin finish