wayne_weedon

Charlie I agree with you in the main. I personally can see merit on both sides. Anyone with an engineering bent will want to improve and that includes me. I however also see merit in preserving machines in their original state. Nothing being done now was impossible in the 60's that includes billet parts etc. Can't be certain they did or didn't exist though. The Spanish classic series seem to have far stricter rules, but they also have more classes available, not sure about specials classes though. Wayne....

....and not even a single pound less! "YOU HAVE BEEN WARNED" Amazing marketing skills, wonder if it works?

Yes I'm aware it's a replica*. Always amused me when I saw it ridden on the Road on GOV 132 Plates though! Possibly the one in Beaulieu Motor Museum is the original, I'm not totally sure. Maybe there's two with the same frame numbers Wayne.... * A Replica that had a lot more development than the original

Nothing is all it seems!

I seem to recall the Ariel he ran in later years (on GOV 132 plates!) had Bultaco Betors in Roadholder Sliders. Wayne....

See if this link works. Expect P&P to be as much as if not more that the parts! Ivan Cirre Wayne...

No different to the first time trying to work out where to put the oil in an OSSA! Those underslung clutch arms sucked! Well they did when I was a kid and my 172's clutch stopped working. Went right around the houses trying to work it out, twas the grill deformed on the frame in the end stopping the arm moving full travel. But this simple problem for some reason did not seem obvious at the time and the memory is vague now. But I think the clutch came out at least once before the penny dropped!! Wayne...

You aint wrong there!! Wayne.....

Probably the float or it's valve. The Bings can be prone to this. My own 199A once started to do this and first I knew about it was once when I had left the fuel on, came back to the bike and fuel was everywhere including half filling the crankcase in my case I kid you not!! Wayne.....

Know any friendly policemen? Someone like that might be able to determine if that frame number is already registered. Wayne.....

Well I never! Never seen one down there! But we dont see many model 10's about these days.

B-8001227 Would be about right.

Those walbro and tillotson carbs are great!

Originally when the bikes left the factory engine and frame numbers were the same with different prefix. How does your engine number start? I do have one bultaco with frame and engine number just 1 digit out. But thats a MK9 Pursang and it most likely happened at the factory. The frame looks right to me. Wayne....

It's normally on the right hand side of the headstock. Could be that the bike had a NEW replacement frame at some point. They usually came unstamped as far as I recall. If it's missing completely and no signs of grinding off etc. Then you could of course stamp it to match the engine. Usually Engines started JM and frames JB. or similar. Wayne.....

Or one of the lightly abrasive kitchen cream cleaners applied with a nail scrubbing brush. It'll never look new, but might help. Wayne...

Steve Operating the arm by hand can you actually feel action of the springs or does it appear solid? Wayne....

Wouldn't be the first time! I used to work in engine R&D and quite often when preparing something very new for trade shows we did "rapid prototype" (SLA, resin) parts, and you had to look pretty close to see the part was not metal. The bike has definately been thrown together a little, but it still looks as groundbreaking as the Gripper did way back in the 80's. Wayne....

Someones been thinking outside the box! Reverse cylinders I've seen before but never on a trials bike. I wonder what injection system they are using, could be the orbital system from down under maybe. Wayne....

This kind of system or similar has been used on model aero engines and also some modern scooters where the tank is below the engine. Usually uses a diaphragm operated by the pressure pulses in the crankcase. Sherco's system may be different though. Wayne....

They are all worth restoration in my opinion! Cost depends on how high a quality you aim for. Post a pic if you can, always nice to see them. Wayne...

Steve Well I just had to have a look. I've been pre-occupied with other work/issues but all the time concerned about what may lay in wait in these two engines in particular. So bit the bullet and started to take a look. Will have to manufacture a puller to get that flywheel off, it's sure to be tight ! There was absolutely no point in even trying to run this one or the 340 Bultaco. The 330 always needed a complete strip as the previous owner had damaged the taper for the final drive sprocket with an angle grinder! Thats the reason I only ever ran the motor for a few minutes after I pieced the thing together initially. The damage I can however repair. I should not have to rebore, but there is probably a need for these pistons other than the 330 as the 349's use the same part. I sort of regret selling one last year. Wayne....

Back onto the Cota 330 Project while I can. Not content with stripping the Bultaco 340 motor I thought I'd better start taking a look see at the Cota to see what damage time has done. This motor has not run since about 1995, and even then I think I ran it for 5 minutes and put the bike in storage. The frame has recently been grit blasted and is awaiting the attention of a blowlamp etc to straighten a couple things out. As for the engine. So far only slight "nasty" is some condensation caused corrosion on the primary flywheel. Hoping thats as bad as it gets. Wayne...

"Kit Campe

That auction ended quickly!