Montesa

Hi Guys. I noticed the other day that my front brake is binding on my 4 ride & been getting hot which is not good. I assume the Caliper pistons need a clean & are perhaps corroded. There’s plenty of life in the pads . Mileage is nearly 1400 Is this an easy job as I’ve not tackled this job before. Any advice would be great, thanks in advance , Andy

I've just put new shoes on my front wheel and had planned to swap the bearings too. However, removing the old ones seems a little tricky as there appears to be a full width sleeve fitted between the existing bearings and the wheel spindle. Am I right in what I see? And, if so, are there any easy ways for removal other than drifting the sleeve all the way through using gentle application of a lump hammer? Apologies if t.his has been asked before but I've done a search and nothing comes up TIA

Hi all. I had a strange thing happen to my 4 ride (67reg) yesterday. I was just checking it over pre mot & It started 2nd kick like normal so I tested the horn & it cut out & won’t start now ! That’s never happened in the 3 yrs I’ve had it . Thinking it could be the kill switch so I disconnected it but still the same. I checked it for continuity which also seems fine. I can’t work out why the use of the horn has killed it unless there’s a short somewhere perhaps. I have ordered a new plug but don’t think it’s that. Any of you guys & girls out there got any ideas cos I’m baffled, with thanks ,Andy

Hi, I have recently purchased an 81 349 and would like to know if anyone has experience with updating the swingarm to the later 84 349 MK/4 modifications with the shock mounts moved forward and swingarm angled. Also, with lowering the footrests. I have seen photos of 81 349s with these mods done and if anyone could give any dimensions or advice it would be appreciated. I always wanted to have an 81 and always planned to do the swingarm to those factory machine specs. Also, does anyone know if the later MK/4 swingarm would retrofit? I never heard whether or not the width at the pivot is the same for both.

Hive mind can you help me please. 247 with Electrex ignition and properly jetted OKO carb. Starts and runs fine but when riding it if you open the throttle there's not much snappiness about it and it seems a bit sluggish. Could this be it needing new piston and rings (hope not, too pricey), it doesn't smoke much or maybe a case of the exhaust needing a good decoke and air filter cleaned/replaced? Thanks in advance

I own a 1976 348MRR, the bike is a low engine and frame number , when I purchased the bike in 1979 it had and still has a cream coloured seat , I have never seen one the same but it looks original, any ideas ??

Hallöchen liebes Forum, ich besitze einen defekten Zylinder einer Montesa von S3. Bei diesem ist leider die Nicasilbeschichtung abgeplatzt. Suche einen Interessenten, der diesen gerne für einen guten Preis erwerben möchte. Selbst fahre ich keine Montesa und habe somit nicht viel Ahnung auf welches Modell der Zylinder passt, bzw. welcher Hubraum sich aus dem Zylinderkit ergibt. MfG Benjamin Gems

Hi there, last activities in the Bultaco section... but now talking about my latest Montesa. There is no sparc so I decided to take things off to simplify the lot. No lights, horn, switches ... and ended up with 4 cables comming from the engine... all pink, burgundy and puple cables gone (never seen that before 🙂) Now, I would expect the black going to the coil, the red from the lighting was to ground, but will be gone, once I managed to open up the little nut on the bracket... so I have a green, white and yellow left... on my Bultaco it is the green one to earth... for the Montesa I could not find anything to help me sorting things out yet. Any help welcom…

I have some damage to my engine casing as pictured, that could do with repair. I know the outer covers are magnesium, but not sure about the engine casings themselves?

Had a nagging oil leak since I got the bike a couple of months ago. In fact, quite a few slow (and not so slow) leaks so changed all seals in clutch case - gear, clutch arm etc. New cover gasket, too. Looked to also be leaking from a couple of the cover screws/bolts so added a few o-rings on these. Finally, found that one of the screws at the bottom of the case is all the way through the case and protruding just in front of the gear box drain plug underneath the engine. I'm guessing that the original cover screw was a shorter one and a previous owner has mistakenly inserted a longer one and pushed all the way through. Unless, of course, the original screw should have gone…

Hello, when starting the kickstarter always blocked on the footrest. Please your advice. Should I change the footpegs or the fork? I have the short lever and that works fine form me. Who has a long fork and who has a short one? Regards, Luc

Evening all. Went out for a play on the Montesa yesterday and one of the rear shocks cried enough. My dad got these with it in 1986. Presumably swapped to the ones on it because the valve parted company on one and the oil escaped. I haven't seen shocks like these before. Are the valves just for oil, or do you pressurise with air as well?

Hoping someone can help diagnose a no spark Cota 248. I have tried 4 old stators plus one brand new one, 2 flywheels, 3 coils, various new points, new condenser, new woodruff key on flywheel, new plug caps, direct earth of coil to the engine, various contact gap settings Absolutely refuses to spark although I can feel a weak shock from the HT lead if I hold the plug business end. Current setup is brand new stator and wiring, new points, new condenser, new plug, all gapped correctly but absolutely nothing. Only things left to replace are the coil (just ordered a new replacement from InMotion) and the flywheel. Has anyone ever heard of a flywheel losing its mag…

Has anyone rebuilt a Brak-Tec front caliper (45100-NN4-K20) ? Is there any documentation available on how to break the caliper down ?

Hello friends, this turned up locally as a barn find. Ad says its all original, hasn't run since late 70s but turns over, original docs, manual, tool kit etc. He wants $1k for it (obo)... Is it worth investigating further? with a TY resto i attempted, parts were plentiful online and i wonder if this is the case for a euro 70s bike too or if it would be more of a headache than its worth. - isnt there a montesa with a wierd size front wheel that you cant get any more? is that this bike? How does it look to you Montesa experts? And..is the 123 as sound an investment as the 247 or 349- or does none of that matter? Any advice appreciated from a novice! with…

Got a 2021 4ride that I want to set up more like a trials bike than a trail bike. Can anyone help me with information about the suspension differences between the 4ride and the 4rt. The specs on the Honda site give the travel as being the same at the rear (170mm) but at the front the 4ride has 190mm and the 4rt 158mm. I've looked at the parts diagrams for both and can't see any difference in the first two blocks of the part numbers. Both having 39mm Tech forks and Olle R16V shock with the same parts numbers other than the last 3 characters which are supposed to be for model version and colour codes. Can anyone tell me if the parts are the same and if the travel is the sam…

I'm thinking about getting a spare wheelset. I see jitsie are currently doing them. My current bike is a 2020 4rt 260 with the tech forks. Obviously a set of wheels is a major investment. What I want to know is will these wheels fit newer 4rt 260's and 301rr if I decide to change or upgrade my bike. Most of these have showa forks. Will I simply be able to fit the original spacers from any possible new montesa into the new jitsie wheels? I wouldn't bother investing in the wheels if they are not transferable.

Hi, A long frustrating evening in the workshop! I’ve just tried fitting dimpled steel clutch plates and although I worked pretty methodically through removal/ replacement with the manual the clutch lever now just doesn’t move at all and is locked out! having read some other comments on here I managed to remove bolts with rattle gun and not clutch holding tool. I checked the manual and realised it states to pull clutch lever in and keep it in as you remove the clutch cover (which I didn’t do). I bled clutch lever then removed cover again, and lever pulls normally. But when refitted it goes stiff again! Has anyone experienced this pr…

As my previous threads have said I've bought an unused 2020 260 mont. It is brand new and unused. Oddly I noticed play in the top shock bearing. I tried to tighten up the bolt but it was tight enough. I took off the shock and it appears the bushes do not sit properly in the spherical bearing. I'm convinced either the factory has fitted the wrong bearing to the correct bushes or vice versa. After noticing that my chain tensioner block had been fitted upside down nothing would suprise me. Aren't dealers supposed to pdi bikes ? Im wondering if maybe the factory fitted showa bushes or bearings onto Olle bearings or bushes. They would have had both in the factory for…

Hi all took the plunge & bought the apico dimpled clutch plates which I plan to fit next week sometime looking through the manual & at some previous topics & it looks as simple as remove the cover then the 6 bolts & springs remove existing plates oil up new plates & replace in correct order put bolts back in at 12 Nm cover on bleed if necessary I don’t need the clutch holding tool shown in the manual do I? Or is there a nut holding the clutch centre on? did this mod on a 315 about 15 years ago & don’t recall needing this tool, different bike obviously though & a long time ago! thanks in advance