Montesa

Hello, I'm trying for the first time to change the gearbox oil in my 1970 Cota 247. I opened the fill plug and remove the drain plug, but only a few drops of oil came out. I tilted the bike but no oil came out. Am I missing something? is there a breather for the gearbox oil? engine number 21M2067 Thanks.

I read at an old post about adding compression release to Cota 247. Here: Can someone please share more information about this mod? How and where you add this, benefits, photos. Any information will be appreciated. Thanks.

Does anyone have the top end big bore with 11 cc (299) ? Can I have feedback on the product? I m considering to put one in my 300rr. Would that put any harm on the bike? Note: it also has a titanium pipe. Thanks

The O'rings on the fuel cap of my 247 are failing quite often now, I believe that it me be due to E10 fuel. At the moment I'm just using basic rubber ones, can anyone recommend a type that will last a bit longer. Thanks

Hello, I redid the forks on 1970 Cota 247. I only had the bike for a short time and don't know how the forks should fill/ behave. Currently I reassemble the forks and put 190cc fork oil (15W) in each. what I noticed is: 1. The forks compress (goes down) quite easily the first few mm, feel like they bottoming, but I never experienced this behavior before so I don't know if this is the case, or it's a normal behavior. 2. It seems the fork doesn't bounce all the way up. They do bounce up but I can pull them up few mm more. 3. When I compress the forks, I can hear air goes out from the top of the left fork (I believe it's f…

I am looking for a throttle Body Assy 16400-NN4-M71 Montesa 4RT 300R Does anyone have anything to sell here? Thanks Bernd

Montesa 4Ride Cat I'm thinking I don't need that bit Ebay found parts sorted a better look with some standard 4RT Bit's took ten and a coffee to fit looks far better with the s/steel RT cover an Exhaust Motor ran right up quick spin round the block runs fine no flat spots an sounds a bit crisper without the Cat Pug

Hi all, I'm try to install back the fork of 1970 Cota 247 with no result. I can't figure out how to push back the plunger assembly to the inner rod. It seems the parts in the plunger don't fit back inside the rod tube smoothly. I also can't figure out what side of the internal spacer suppose to go on the plunger- the side that sits on the plunger small spring and allow the spring to move, or the other side that cover the spring. from where should I push the plunger back inside the rod- from the bottom part of the rod or the upper part (where the caps thread) Also- is it right to assume that after I put everything back- the plunger should go up …

Hi .... does anyone know BTDC for Cota 242 1986 mvh Lars

What size rim locks/ bead locks do i need for a 1968 Cota 247 I have akront rims and will run 2.75x21 front and 4.00x18 rear. Thanks

I bought this Cota from the Original Owner and have been working on getting it sorted out. Its a very early model : Vin 21M00348, possibly a 1968?... It has the IRZ carb, big hubs, no chain tensioner or mount for one. Everything besides the tires is probably original. The bike runs but i have replaced the crank seals, base gasket and replaced the petcock. Working on getting tires/ tubes/ rim locks changed, seat recovered (foam is deteriorating). I don't think it will get a cosmetic upgrade, just mechanical. I like the patina. Thanks

Hello, New to the site and my fairly recently acquired 1976 Montesa cota 348 MRR. I am having problems selecting the gears. With the bike running and moving, going through the gearbox sequence from 1st to 6th gear is quite difficult with a very stiff selector lever, gears not engaging correctly and quite a few neutrals in between. Changing back down from 6th to 1st is better but probably because it is easier to apply downwards pressure on the lever. All the gears are there, it is just difficult getting them. I have tried adjusting the concentric nut on the selector mechanism until I have got the best lever movement possible but it is still problematic. The …

Can someone please explain or upload a photo of the return spring on the rear brake of the early 70's Cota 247? I can't understand how the spring attach to the brake arm from the parts manual. Thanks.

I'm going to remove the rear wheel from my Cota 247. I have a flat tire and I want to check the wheel and the rim. Any tips how to do it correctly? Do I need to release the rear brake? Do I need to take the chain off? Do I need to mark any position of the wheel? Any help will be appreciated. I never done it before. Also- the previous owner told me it's a tube rear tire, but the tire (Dunlop D803 says tubeless) Could be it's a tubeless tire with add tube inside? Thanks.

I decided to pull the trigger on a beautiful but strangely yellow Cota 247. Thank you all for your help here in other groups in this forum. I want to check the air filter. Do I need to take down the gas tank in order to get to the air filter? if yes, any tips how to do it safely and correct? The owner told me to use non ethanol fuel in order to keep the fiberglass tank in good shape. Is this a common practice with this tank? And a photo of course!

I’ve got the opportunity to buy an old 172 that needs a bit of TLC. I had a one year old one from Windsor Comp Shop way back in 1978 so quite a late one (with the stripes on the tank) which looked gorgeous but used to be a bit of a pain to start and maintain as a 16 year old with zero parental interest in my motorcycle antics. My questions are:- 1. Can you still get most parts for the 172? 2. Are there any decent (but not changing the look) upgrades that are available - eg. Electronic ignition, brake pads that actually stop, etc. 3. Any other massive things to look out for? Any pointers would be much appreciated! it’s either this or a Ve…

Hello all, ive got some play at the rear dogbone bearing/ bushing (lower right on the picture) ive ordered a rear swinging arm bushing / bearing kit. ive not done this before - has anyone got a few minutes to outline the steps involved. once the dogbone out - I have a socket / bearing puller set to get the old bearings out. am I aiming to just remove the suspension gear with the swinging arm in situ? Or does the whole swinging arm come off. And are there tips and suggestions to make it easier ? thanks in advance !

Hi, There is currently one for sale near me at $2350. Is this model and year consider to be desirable vintage trials? Is it hard to find parts in the US? Any recommend/ issues/ notes? I will appreciate any help or thought.

any ideas what the new models will be electric, 4 stroke , 2 stroke. highly unlikely its 2 stroke unless fuel injection https://www.montesa.com/en/actualidad/new-2022-montesa-motorcycles-release-stay-tuned/?fbclid=IwAR0wTM3JS4lcXHVHqCX7WeZPWhcQtZTTtJnSIbZiPvP7wd_MxI7quALE47k

I have a Cota 200 and it has a AMAL Carb. the numbering on the car is 625 and then below that is the numbers 720 / 404 can anyone tell me where I can locate a carb rebuild kit for this carb. I am wondering what Main Jet size I will need. Perhaps the numbers above differentiate that? thanks Greg