Twinshock

The bearing in the clutch basket needs changing so I have removed the clutch basket from the bike but I am unable to strip the clutch down any further. Does anyone know what the tool used to compress the clutch to enable the pins to be removed looks like? I have had a tentative go using a vice but I do not want to damage anything. Cheers John

Hi, Just rebuilding a 247 Cota motor and the big end is a plain (bronze) bush. Ive never ever seen this on a 2 stroke engine. I have a new rod kit so I'll put that in, but I wondered if anyone had ever seen a Monty with a plain bush big end....seems strange, maybe the previous owner was trying to save costs or maybe Montesa did this at some stage - anyone know?? I can see how a bushed small end would be OK, as the movement is only through a small range (maybe 20 degrees per revolution) but the big end moves through 360 degrees. Having said that plenty of 4 strokes use shell type bush big ends - but are oil fed... Any comments anyone? many thanks Stu

Can anyone point me toward a supplier of a rod kit or just the big end pin for a 247?

I have a very tidy 350 Cota with the grey frame and "banana" swinging arm. The paint on the tank has inevitably bubbled because of the ability of fuel to weep through the tank material. I understand the tank is made from a kind of nylon but It seems to be self coloured a dull orange. I am guessing that if I strip the paint I might be able to polish the plastic. It wouldn't be right but I think it might be better than the anaglypta finish I have at the moment. Can anyone help? Colin Shaughnessy

Hi does anyone know if it is possible to make the pull on a 248 clutch any lighter, cheers Mark

Hi Hopefully someone can help ! I have a Montesa 172 which the restoration is about complete, however I have a problem with gear selection (goes into first but nothing else), and what appears a very heavy clutch. What I am after is if anyone knows of a good engine/gearbox rebuild shop (or individual !) in the North of England where I could take the bike to (I need to take the complete bike so it can be checked running). Ive googled and there a few specialist twinshock shops, but a long way away from me ! cheers and thanks for looking John

Did Montesa have difference swing-arm on the 348? I'm rebuilding my Dad's old 348 and I have two swing-arms one is 14 inches from the shock mount to the pivot point and has the kickstand mount is on the left side, the other is 16 inches from the shock mount to the pivot point and never had a kickstand or mount. I seem to remember that when Dad got the bike in England and bought the the bike into the States there was no lickstand on the bike. But after 30+ years I'm not sure. Here are some pics. Scott

To finish my rebuild i need the 2 thrust washers that sit behind the clutch basket. I have contacted BVM in Stroud but the parts have come up as NLA. I do not have the originals so can some one tell me the dimensions of these 2 washers? Cheers John

Anyone ever tried the 1974 KX-400 clutch case mod? How difficult was it?

Hi, I hope someone can help! I have a 1980 Cota 200, the kickstart works fine but when you manually turn the flywheel the kick mechanism can be heard to ratchet on the pawl. I have removed the cover and cant see anything missing or amis! Has any one else got one and is this normal? The bike starts and runs great. Any advice would be gratefully received. Thanks.

Hello again, if anyone can remember I have a 242 mont that was in need of an engine rebuild. That has been done and the engine is back in the bike. I`m having real problems setting the timing tho, its got a nice fat spark and sucks petrol through spot on but ive only managed to have it running once and it backfired and snapped the woodruff key. I`m finding it really hard to measure the timing through the plug hole as its on the side of the squish band and seems to be at TDC for longer than it should. Anybody know an easy way of setting the timing on these bikes or is it just a case of trial and error. I`m aiming for a 0.38 inch contact gap and the points to open 2.5m…

Hi, Does anyone know of an alternative Kickstart lever that will fit a Montesa Cota 200 1980, it has a 15mm shaft measured on top of the splines, Cheers, Vaughan.

Years back I had a Montesa 348 which I seem to remember, somewhat confusingly, had an engine size of 310cc. Have just checked the internet and discovered I was wrong - actual size was apparently 305.9cc(?). Interestingly, on the same site, the Montesa 349 is listed as having an engine size of 350cc. Is this right? Or should it be 305.9 like the 348 model? Would be grateful for clarification from any Monty anoraks out there! Many thanks.

Hi does anyone know where I can get a decent timing side cover for a Montesa 248/349 white wonder. Thanks in advance Mark

Bonsoir, Being dragged back to Blighty for a wedding around the August bank holiday, might soften the blow if I could get a trial in whilst there, anything on please, will be staying in Helford, so a nice part of the world. If anybody could let me know so I can start working on the wife now............you know whack the bike on the rack under cover of darkness etc etc.... Thanks vm

Hi there, Suddenly can't get my KT to fire up. Used to start 1st time every time no matter how long stood or what the temperature was. Now, after several kicks, will only run for a few seconds and then dies completely. Have checked the obvious; nice fat spark at the plug, fuel in the tank etc. There's no 2 stroke oil tank fitted and I have been premixing the fuel using fully synthetic 2 stroke at 50:1 ratio. Someone else told me recently they had problems using synthetic 2 stroke in their kh250 and so I wondered if that could be the problem with the kt? Any help appreciated Cheers

Greetings all! Ater months of waiting, my KT 250 project is about to get under way! I'm starting with 2 semi complete bikes that I'm certain will be enough for 1 rider. As the bike is going to be ridden, I'm planning on rattle can painting the tank (unless I get my powder coat setup done), as well as painting the frame to match the tank. I saw a great photo of one on this site that featured a lay down suspension setup for the rear. A buddy of mine can do this, so my question would be where to locate the upper mount and how much gusseting? I'm thinking about positioning the mount so that the stock length shock will be appx. a half an inch longer thinking tis will help th…

hi My Sherpa is fitted with an RL stator plate and flywheel (not sure what coil / ignition is though) I find that the bike is playing up when hot (similar to when timing is out or when starving for fuel) the bike runs fine for about 15 - 20 minutes. Bike starts first kick always, hot or cold. Could this be a fault in the cdi system? thanks

Hello, Looking to make my Ossa clutch a little easier to pull. I have a Teflon cable. Just wondering if anyone has done anything with springs. Taking all suggestions. Thanks.

Hi all Just purchased a 1982 gripper 350, came with a mikuni 28 mm on it, can anyone provide me with jetting that works well for them? cheers bob