I think it was the 349 Monts that had a quick release gearbox sprocket mechanism to enable gearing changes to be made quickly by the rider, In this case the main aim to give the motor an easier time on the roads.
The 349 was good for 70mph or more, how much faster would you want to go ?
Being new to the Bultaco family even after nearly 37 years of trialing having never owned a Bultaco and only ever riding one in a trial once, I have sold a nice Pre 65 to reinvest in the marque. I read with interest this thread because I thought the 199b was the Bultaco I always wanted, and should buy, only to find that many other people, better qualified than me talked me out of it. When I was still adamant thats what I should buy several were for sale in France and also in Spain. This backs up the point Dabster made about they are not that sought after in Spain, or highly prized, perhaps like the Uk. Many of my Spanish chums including El Puma think the 199a is the better bike . Now this is not to say one is better than the other just to reliterate a point made earlier about the desirablility of one model over another. I did out of interest buy a very nice 199a after doing my homework, its having a little bit or work done in Spain, I will report back when done what head steady it comes back with.
You having regression therapy H ? See you the weekend after next ?
There's a version of this up my way which uses Gas Gas mono front and back ends on a home built frame, but it is not out often enough to gauge performance.
Its actually pretty good, the original carb was a bit like a switch, he's since fitted a smaller one to good effect.
I absolutely disagree with newbies jumping in to trials rather than practise, possibly I'm in a minority of 1 but I believe a newbie will learn much more just practising the basics etc than diving in and getting stuck in sections all day long.
In this case, nowhere to go, and no one to practice with, I think this is the best option. The CCMCC usually have ideal entry sections, and friendly people.
Check for air leak first, inlet tract if loose could be the problem.
Not sure if climber disc valve timing the same as air cooled, if it is - lock crank at TDC, disc is just starting to cover port. I'll try and find the diagram. Sure Martin has it somewhere on his site.
Trying to use a water called engine piston in a air called engine is risky thing to do. Why? The clearance on a air cooled piston to cylinder is much larger to allow expansion of the pistons during running. The whole idea of a water called engine is that the pistons and cylinder stay cooler and affording smaller clearances of piston to cylinder. A piston of a water cooled engine would be tighter and could expand very easily seizing up the engine.
Why would you consider using water cooled clearances on an air cooled engine ?
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The 349 was good for 70mph or more, how much faster would you want to go ?