Twinshock

Years ago when Mick Andrews was riding for Yamaha he developed a fuel injected bike. Can anyone remember whether he rode it in the Scottish?

Hi all, this is my fantic that i built specificly to compete at a harder level than just the clubman route, although i did ride it in a few twinshock / pre65 trials this year, you will do well to spot all the mods, and it is 100% fantic, i now ride a TYZ as my main bike so this one is redundant :-( I would be interested in any oppinions Alan http://img87.imageshack.us/my.php?image=24102006171yg2.jpg http://img133.imageshack.us/my.php?image=24102006172mr1.jpg http://img83.imageshack.us/my.php?image=24102006173mi4.jpg http://img133.imageshack.us/my.php?image=24102006174qc0.jpg

I've just followed a link on this twinshock forum from Woody ( thank you Sir) and ended up looking at a photo of a lean, mean looking Armstrong 320, I know nothing... ....about this type of bike, where did they come from, where did they go, how come we're not all riding the 21st Century version? Answers about Armstrongs please post here: Answers about my ignorance please post on the back of a £10 note to my home address Wayne

Well i have finally for my sins aquired an Ossa MAR Mk 2 Needs a bit of work, dont they all?, so i'm asking for a bit of help and info. Parts needed. Barrel and piston as mine has a couple of broken fins and i am a bit particular about things Chrome fork tubes. Mine are pitted. See above Silencer. Does anybody make an aftermarket one? Does anything else fit? Advice. It's fitted with a dished sprocket. Need a new one. Are these available anywhere? What gearing is the best compromise? Will only be used off road as not registered. My carb Amal Mk1 is showing signs of wear so will need a new one. Should i get a Mk1 ? or a Mk2 or what. If i stay with the Mk1 car…

I recently got a couple of 348 monts. This one is registered 1980. I've not found an original pic of 1 1980, if it is a '80 348 even. Chassis looks like a 349, but what do I know! Chassis no: 51M17604. Its got a Mikuni carb too. Was that standard in those days? And some sort of air forks. So, knowledgeable twinshock gurus - is this a last 348 or some sort of mongrel? I've also got a 1977 Rathmell replica in similar, but slightly worse condition. It's mot'd & was taxed. I'm probably going to sell that once I've given it a look over.

Need a bit of help to get my head around steering mods on a twinshock. I've read about people fitting parallel yokes to alter the steering angle, rather than cutting and re welding frames. Does that not just shorten the wheel base and leave the fork angle the same? Just wondering whats needed to improve steering is it about the rake on the forks or the wheel base? Cheers.

I picked up a spare "parts bike" 348 last week. I'm trying to figure out the date of manufacture by the number stamped on the engine, but, the problem is, there is no 51M number [ or any markings here ] stamped on the case below the carb bowl, instead, the only numbers I can find on it are "1313" stamped on the cases at the rear mount / bolt boss. Otherwise, it sure LOOKS like a 348 engine....... Thoughts?

Just spotted this. Why oh why do this to a Bultaco 199B? link I'm stunned! Seeing as a nice 199B made 2500 gbp on evilbay recently I'm wondering what this will make now. Nowhere near the value of an unbutchered 340 I'm sure, but you can never tell. I guess he could started with just a frame and running gear as its not got the correct tank. Wayne...

Well I have the crank seals on hand, and since I don't know when they may have been replaced last, I figure I may as well change them out. I'm waiting on getting the cylinder back from the machine shop sporting a new overbore piston anyway...... Since I've never replaced crank seals before I have a few questions please...... Is the counter flywheel [ on the clutch side ] nut reverse thread? ie; turn clockwise to loosen? Does the counter flywheel require a tool similar to the flywheel puller to remove? Next, remove the clutch basket? Now, pull the primary gear with a puller.......then remove the crank bearing cap and gasket........ OK, how does the seal come out, pr…

Anyone built Akront alloy rims from the seventies with Stainless spokes?

What twinshock in your opinion will be worth the most in five years time? I'd say of the big three , The Ossa mar should in theory be worth the most as they were the least sold! so would that make them more sought after?

hi, hoping that someone can help me out.i ride a twin shock swm gs bike with the modern guys.bike gos like hell,but the brakes suck.they wont lock up on stone roads! they have ebc shoes and i sand the hubs and shoes then clean them with brake cleaner.any ideas before i kill myself on this thing...thanks...johnnyb

I have just finishing rebuilding an Armstrong 320 which I would like to register for road use. I've registered new bikes with certificate of newness but this can't work like that can it? It has been registered at some time in it's life but the documents are long since lost, anyone got any advice how to go about it? Will I have to go to have it inspected by DVLA? Any advice appreciated.

As many of you may know the engine side covers are held on with an odd sized screw (at least odd to everyone I talk to). It's an M7x1.0 in both 55 and 38mm lengths. So far I have had no luck sourcing these. Are these even available from dealers in Spain? We're almost to the point of turning down M8 sized bolts or, God forbid, tapping the holes out to M8. Help!

How might the Montesa 348 compare to a similar period Bultaco, is the 348 a good bike to own and ride?

in the middle of rebuilding a monty 348,does it matter what side you split and leave all the internals in?cheers

Hi all just come back from wrighty's show and i found a cooper bantam frame in very good condition it also came with a pair of tank stickers i was told by the seller that it was a very small concern in the late 60s early seventies . Has any one got any info at all on these bikes ??? A picture would be amazing !! .I was thinking 32mm MP forks were used ?? not sure on hubs maybe the REH used on the wassell with chrome dunlop rims . Got a very neat little alloy tank painted white with it as a job lot not sure if its the original or not ??? any help with info would be amazing . Thanks in advance Martin

Does anyone know what colour orange 250 Ossa Grippers were (e.g. RAL code) so I can get some paint mixed to the correct colour?