Twinshock

I have heard that putting TY forks on a KT make a huge difference in the handling traits. I was wondering if switching the triple clamps would have a similar affect since they appear to have less offset or if the front wheel will eve line up. Anyone ever tried it???

Hi there, i am new to the sport and this forum, and need a bit of help: i have a 1975 ty175, and rode it the other day for the first time for a couple of hours. The engine didn't like to idle and kept stalling, which made steep descents difficult. I was low on fuel, and the problem doesn't seem to occur when the engine is cooler and just off choke. Is it just lack of 'pressure' from low fuel or something else? Also another elementary question - does the 'search' thing work on this? it keeps telling me i am using banned words (and i am not...i don't think!) cheers for your help

Please could anyone tell me the correct specification (width, radius, length, height, etc) to replicate the low mounted alloy 'trials' version of the front mudguard original to the Sachs engined Wassell trials bikes of the early 1970's ? I'm trying to restore a bike and photos I've taken off the internet seem to vary. One supplier I contacted tells me he has over 60 different sizes of front alloy 'trials' mudguard so I need to be more specific. Thanks.

Just finished restoring my Montesa MH200 (new 2nd oversize piston, rebore, plug, oil, cables, kick start spring etc) Bike will start fairly easy on the choke, but doesn't want to idle. It has the MK2 Amal concentric carb. Does anyone know how to set up idle adjustment on this carb, as it doesn't appear to have an adjusting screw. Also, the revs don't drop off as quickly as they should when throttle is closed. Could this be connected? Any help much appreciated!

I purchased this today as I fancied a twinshock mont and a bit of a project The frame and engine number is 21m51607 I've looked online and all I can tell is its a 247 no idea about how you date it If anyone could shed any light on it I'd appreciate it because I'll be needing a few bits and bobs Thanks in advance

Well I have decided to get myself a twinshock again, something to work on as a project and to take part in twinshock trials . Now I am not fussed about what bike I go for, but would prefer early to late 70's. My question is not realy what is the best bike but what make(s) have the most widely available spares or have the best value for money parts. Don't want to get into a rebuild to find that parts take months to locate or cost more that it is worth. I don't expect all part to be on the shelf but waiting time within reason. Also are there makes that you can go to several dealers rather that 'oh with that bike you cn only get them from.....' Any help would be great

I've just been looking at a clip of an indoor trial from Italy, the minder/catcher was raised on a forklift truck, to his position, looked at least 15ft from the ground. This got me thinking 'well that's a bit dangerous'. Arena Trials have lots of sharp edges and hard floors, wasn't there a Japanese rider who broke both wrists a couple of years ago. The sections seem to get more and more dangerous as the years progress, is it that the promoters have to forfill the publics need for more and more excitement. What worries me, is our up and coming stars, i'd hate to see them, risking themselves for the sake of entertainment and possibly risking the real goal of world champio…

OK, I've replaced the camchain, and cleaned and checked the tensioner - but I'm still getting the rattle, well not so much rattle but loud ticking cum rattle. Am I being paranoid, could it just be the ignition as it goes around and touches/goes past. It increases with revs etc. It's not the valves as I've checked those; besides they're more of a pitter patter. Any advice appreciated.

Hello. Im coming to the end of building up my 247. Just needs little things like cables, chain and sprokets and a flippin mid section exhaust. Bought the bike as a basket case, but the guy I bought it from didn't have the mid exhaust. I've searched everywhere.... ebay, in motion, trials bits uk, miller products and a few more. Does anyone know where I can buy one new or used? thanks Dan

how does the MAR stack up to the period competition?

I was wondering if any one knows what the differents of these amal carbs are . These carbs are on a 348 and a 349 Montesa. 2626/402-27 2627/402-27 2627/406-27

hello all i gave ridden for a long time but recently purchased two twinshock bikles...76 honda tl that is 298cc and a modified frame and a sweet 79 199a. questions about the bul: 1 it has a mikuni and had a 115 main jet. had gobs of bottom end but not much on top. if i open up to a 130-140 and drop the needle a place or two will i keep the bottom end and add mid and top?? it also had .012" piston clearance when i checked so bored first over. i have a 140 main in it for the breakin period 2 it has an aluminum aftermarket swingarm which says malcolm smith but i don't think he was into bultacos....so does anyone know what i have?? 3 i have two sets of rear shox…

Can anyone refresh my memory about setting points on a 2 stroke, as i have'nt messed with points for about 15 years???

I've recently bought a 199 Bult with an aftermarket frame which I thought at first to be a Miller frame circa 78,79.I`m now pretty sure it isn't.Anybody know about Mick Whitlock Bultaco frames?It's not one of Steve Wilsons and I can't think of anybody else who made chrome Bultaco frames in any sort of quantity.

After attending the Malvern show last week I am pretty sure that the new updated Yamaha Majesty has got to be the best twinshock bike available................but wonder what other people might choose if money no object, and they could afford any twinshock bike? MM

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?Vie...A:IT&ih=003 old classic or pile of junk. All i know is its German and they used to make army bikes.

Hope someone out there can give me some clues about my 348. The bike has always been hard to start from cold. It is running the standard Amal monoblock carb which was recently resleeved etc etc. Once the bike warms up it is fine although the amount of smoke it produces is embarrasing. (exhaust and muffler were hit with an oxy to burn all rubbish out) Fuel consumption is terrible. I went for a short ride today around the property and ran out of fuel coming back home. I put in just over 2 litres of fuel before heading off and would not have done more than 5 kilometres riding. There are no fuel leaks anywhere. It still has plenty of power but the above problems are d…

Hi, sorry if this subject's been covered before but can anyone advise me on the correct way to preload the shocks on a twinshocker? I have a nice new pair of Betor shocks which have preload adjusting rings but I'm only guessing at the amount of preload I use so the shocks may not be working as well as they might. Also how do you determine the shock spring rate Is this just down to feel and experience? I'm assuming if the springs are to soft it will bottom out easily, to hard and it will kick on small stuff. Thanks in advance.

Are they worth the buying ? Sold my bike the other day so have cash burning a hole and fancy something different. Couple on ebay at the mo and look like they've been well restored. What problems will/would I encounter if I do buy one ? Thanks in advance.

Hello... I have just bought a cota 348... first trials bike in 20 plus years.. How is the suspention on a trials bike set up ? Sag height %.. unloaded & loaded "with rider weight" The rear shocks are stuffed , So they will be replaced I'm only going to use it in the clubmans class so am looking at a set of Betor shocks , prise is not to over the top.. As I live in NZ I have to take into account exchange rate & shiping cost.. when those are added on cheaps not cheap any more.. Thanks Pete