Twinshock

Just a quickie. I cant remember the size and pitch of the bolt that secures the damper assy on a MAR. Anybody know as i've found a pair of forks in bits i had forgotten i had, having a sort out in the shed, and want to put them back together and use in one of the "projects". Cant find the thread pitch guage

Is it possible to strip these shock and if so how?, I'm only interested in getting springs off to give them a clean and refinish the bodies. Many thanks guys

Picked up a bottom end in my search for replacement gears. Drained the gear oil and was shocked when several teaspoons of clear water came out before the oil!! A dreadful feeling of d

Hello. I was hoping after reading some of the other topics that some might be able to help. I have a late Mk2 250 Mar which i have been restoring over the last couple of years. I have now got the bike to a running stage but have a Tiny hole in the front Exhaust manifold and i have had no luck finding a replacement.Can anyone help! Cheers. Ian.

thanks to woody for his advice,the mods are now complete. 1. footrests repositioned. 2. swinging arm length increased by 40mm 3. shock absorbers 25mm longer. 4. forks pushed thru` yokes 10mm 5. handlebar clamps repositioned up and forwards 20mm took the bike to bracken rocks today and happily it is much better,seems to grip and turn in great,the biggest improvement is the riding position,feels more like a modern bike.

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Any of you Montesa experts out there able to confirm the oil quantity for the gearbox on a 1973 247 Cota? I have a spec sheet which says 200cc but that can't be right, surely? It states 300cc for the clutch which sounds ok as that's the same as a Sherpa but a Sherpa has 600cc in the gearbox, so 200cc for the Mont seems low. I have a Clymer manual and that says 200cc for the clutch and 300cc for the gearbox..... Just spent the last 2 days cutting open, repacking and welding up the middle and end silencers and what a **** job that is, so now I want to see if the pain was all worth it, get it fired up and see if the newly rebult motor purrs, just like my mate's did back in…

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.

Looking for a side panel for my Cagiva DG350. Anyone got one lying around ?. Just a hopeful request. Or any idea where i could find one.

A good friend of mine is unfortunatly nearing the end of lifes trial!! and is approaching the End Pegs!!..... His wife has had enquires as to her intentions with his trusty CCM. What she needs is an assesment of the rough value of the bike, the machine is in good condition . Thanks for your time.......

Hi I am rebuilding a bultaco sherpa 250 with a view to having a go at twinshocking so am keeping it as original as possible but fitting it with practical bits as well. My question is i have just got some weld on big footrests from Dave Renhams to fit before i respray the frame and want to know if they should be fitted in the same position as the original puny items or is there a modification that would benefit the bike and me?ie upwards or backwards slightly? Thankyou in advance. John.

Hi guys, does anyone know which is for what on a 1981 349 as i will be adding a lighting kit soon. It has a green , pink and yellow wire but i'm un-sure of which one is for the headlight, horn and brake lights thanks Dave

Hi Everyone, Can anyone point me to a supplyer of the "Bung" push fit petrol cap as fitted to my Montesa Cota 200, Im also desparate for a Kickstart lever and a Chain tensioner in order to finish off my Project. Any help or advice will be most welcome, Cheers, Vaughan.

Hi all I currently compete on my mar and this winter will be taking a close look at the cylinder, piston, rings etc and clutch to freshen up. What do you suggest i use for the clutch, surflex?, barnetts?, what springs etc, any suggestions for lightening the pull. Any porting alterations or better alternatives over the tarabushi pistons / sleeves. Just looking for your experience and suggestions. I using the ossa works manual for specs. just as a side note i've raked some rock shocks to the 1976 position, lightened the bike a bit, lowered the pegs and fitted a 28 mm oko, not interested in fitting a reed case. cheers bob

Has anyone here ordered from them, or is there a dealer for them? I've emailed them and got no answer. How you rate their shocks compared to Falcon and Rock shocks? The application is a TY250.

This has probably been discussed before, ad nauseum, but....I think I'll be selling a bike or two and reconfiguring the herd, and I might have a few bucks left over. There's what looks like a pretty cool vintage club around here, and I just might throw my hat (helmet?) in the ring. I'm not interested in thumpers...not to ride, anyway...what I'd really be looking for is the twin-shock with the most modern manners. I've owned a TY175, but, as a lad, always coveted the Bultacos and Montesas...so I have unresolved Spainish bike issues. I live in the US, so some of the British specials (Majesty, etc) are not available here. Anyway...I'd like some feedback on what you all…

Thought you might find this pic interesting. It is Clive Dobson (500t in the Talmag and Scottish) on the 4 stroke Gollner Kawasaki at Horsham clubs Presidents Cup at Plaistow early 80's. I believe only one was made that started off as yellow then became red, apparently the engine wsa pretty standard KL with some KT ratios modified to fit, nice bike tho'.

hi guys, has anyone out here fitted a yam mono (drum brake) front end to a yam framed majesty 250 i understand that the mono yokes cant also be fitted? and have to mill out the STD ty yokes to accept the mono forks! does anyone know what the wheelbase will be after this conversion's been done? as the bikes already seems short with (i think) 51" wheelbase! if i cant get the above parts i need ive looked at the b+j racing web site and see there still doing the uprated( i think) fork springs and also a boyesson reed valve and alloy spacer kit that looks interesting, anyone tried these? on a different note i cut off the std footrest mounts and offered up the oversized foo…

So a rather rusty but very cheap CG miraculously appeared in my garage. I'd had one as my first road bike when I was seventeen and went everywhere on it. But I was a bit unsure of what to do with this one. It was too rusty and worn to keep as it was so it needed sorting out. A couple of mates have RTXs which they are putting on the road and that was when the penny dropped. The CG needed to become the trials CG! Or rather trials-ish CG. I've a '03 Sherco for the proper stuff but I've always wanted a bike on the road that had decent trials ability. So I started to strip the CG and compile a list... and that's about as far as I've got ? So I think I need a 21" wheel, a …

I was told when 348 were used in the Uk that they had to have a non fiber glass tank.If this is true does anyone have any history about this.If so does anyone know of someone who might have one of these old tanks around,or some pictures