Twinshock

Hi, I've been told that a DT 175mx barrel fits straight onto a TY 175 and gives it more power due to the porting. Has anyone done this and if so is it a worth while mod? I've also been told that a lot of people used to lengthen the swing arm by an inch or so to help keep the front end down, does this work and does it affect the steering in any way? Thanks in advance.

This poster on hardboard came from the wall of the old Merlin factory. Can anyone name all 4 riders and if so , who are they? I think i know 2 , but thats all.

Hello all. I'm rebuiding a Mont 200 the one with the alloy tank under the F/glass tank and seat unit. I understand that there are two sorts of rear guard, LONG and SHORT, There seems to be a black plastic shield behind the air box does this mean I need a short guard? any help would be great as I've nothing to go by. Also would this model have the chain tubes as standard? Thanks in advance.

A while back I fitted a pair of wide foot pegs to both my bikes but on the TLR200 the kickstart hits the peg - it wasn't an issue as the peg was pretty tight and would stick in the fold back position out of the way. Downside was every time the peg hit an object it would stick and my foot would then be flailing around looking for the folded peg. So I oiled the springs and now the pegs are flicking back with alacrity - but now the bloody kickstart hits the peg. I have a 3 inch piece of number 8 fencing wire that can be hooked onto the peg to hold it but it is very clumsy and tedious as it has to be engaged by hand and that isn't always convenient. Idea's anyone

Starting to restore my 172 montesa and was always told it was a 123 bored out to 156.Have got a 123 engine for spares and the 172 has a longer con rod and heavier fly wheels. abit more than a bigger bore me thinks.

Wondering if anybody has purchased a alloy handlebar from france trials classic. It says it a size 6 and Im wondering if this equates to 150mm rise. i'm 6ft 4 and i'm looking for the highest bar possible - any other suggestions welcomed. ps Id prefer a high bar rather than a modified triple clamp or relocated footpeg locations.

Hi, I've got a fiberglass seat base. Ive got a foam seat pad which sits perfectly on it. The challenge that I have is when I wrap it in vinyl I'll need a good finish so need it tight in place. How do I hold the edges down , tucked underneath?? Fiberglass won't staple will it? Glue won't stick well enough. I could screw it in many places. Is there a better way?.

I've got a white plastic petrol tank that's turned yellowish with the petrol vapour over the years. Is it possible to get rid of this yellowing to restore to its former beauty and if so how? Many thanks

Hi there, thanks to several of you who helped with the idle issue - seemed a simple fix. Now i realise there is another issue; i had a good session for a couple of hours today in the woods with no problems (only second time riding this bike). On the way back home on the road - so riding with a few more beans the engine faltered and died when under load. it did this last time and i assumed i had run out of fuel, but i know i didn't today. i was concerned the engine was seizing, but it turned over ok, but did struggle to start after this. Any suggestions? no problem on the slow stuff just riding home. Manual suggests HT lead.....?!

Hi can anybody tell me whether I can change the seal behind the front sprocket on the drive shaft of a Montesa cota 248/348 from the outside. Thanks

Ever since my TY 175 became 205cc, I have been breaking kickstart levers frequently. Yes they are easily available but it becomes expensive having to keep buying new ones. I have experimented with different home made designs but am not happy with any of them yet. The Mini Majesty featured on page 38 of Classic Dirt Bike Issue 2 (Ted Salmon's bike) has a kickstart lever that resembles the Yamaha item but looks a bit more substantial at the knuckle end than the Yamaha item. Maybe it's just an optical illusion in this case but does anyone know of where TY175 kickstart levers of a superior design are available from? Thanks

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

Hi, I was just wondering how a 200cota compares to the likes of a fantic 200 or a ty175 for power, rideability, reliability etc, any issues with them or are they a decent bike? Cheers.

Apologies in advance I did post this in the Honda forum but I was hoping for more response before I pull the engine out and split cases - has anyone experienced this with their TLR "quite suddenly my TLR200 can only select first & second gears. It simply refuses to select third the gear shift will not move up" ie: it moves up and down as normal between 1st and second but refuses to move up into third

I have a 1983 Montesa Cota that I have gone through pretty well and a friend of mine has a 1976 Montesa Cota 348 MRR that is basically stock. After riding mine for a few months, I rode his and noticed his seems to turn and steer much more easily and smoother than mine. I have modern pegs on mine that slightly lower and push back the foot position. I have also installed stiffer fork springs and after market Works Performance shocks. Anyway, does anyone know why the older bike seems to steer better than the newer bike? Is this an inherent trait of the 1983 242 or is is just a personal things as to what each rider might prefer? Any ideas?

Where does the ONE wire from the centre of the 'rubber' kill switches go? Live(red) or Green(trigger) Is there no earth on these kill switches? thanks

how does advancing or retarding the ignition affect the feel of the bike at low revs? thanks matt

I have just purchased a Montesa 348 which appears to be fitted with a Dellorto VHBZ carb as opposed to the original (i believe) Amal. This got me wondering, how interchangeable carbs are and how does changing the carb change the behaviour of the bike? Any knowledge of this subject would be of interest as the previous owner purchased the carb off of ebay and I am wondered if a different carb would change the characteristics of the bike.

Trawling around eBay and found this:- http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=290580270984&ssPageName=STRK:MEWAX:IT#ht_500wt_1152 Rather expensive? What do you think?

Has anyone here moved the footrest position or otherwise modified the footrests on a Montesa Cota 348 or similar? Would like to see how you have done it if you have.