Montesa

Hello, Did anyone tried a reiger rear shock on the 301rr? stock showa is nice and smoot but its heavy. Reiger has fast and low damping and only weighs 1.1kg

Hi, I’m about to buy a 4rt. How are people cleaning the fuel injection throttle body. Is it similar to a carb where you use carb cleaner or an airline to clean it out after a ride?

I'm in need of a primary pinion gear for a Cota (white wonder) 349. This is the gear that is pressed onto the main shaft that meshes with the clutch basket gear. Does anyone know if other Cota models are the same? Any leads to finding this part is much appreciated. Thank you.

Hi everyone! I have just purchased and old rusty 1999 315r with rusty spokes and nipples that make impossible to center the rear wheel. I found a cheap 2008 4rt rear wheel, that have different disc/sprocket bolt pattern, but will it fit into the 99’ 315r? Wich spacers/mods must have to be done? any help would be appreciated. thanks!

Hi all, I have just noticed how hot my exhaust / manifold gets seconds after startup. The bike idles well and doesn’t seem to be missing a beat. Not sure if that’s how 4 stokes are after coming from 2t Following this…. The fan on my 4rt starts up within 1-2 minutes of riding. Not sure if this is correct or it’s getting too hot too quickly, any closure would be appreciated. Also i ride in the uk so very hot weather is not the issue before someone comments that 😂🤣

The Montesa '98 315R Manual doesn't appear to publish the 'standard position' or 'factory' settings for the Paioli front fork. Does anyone have a recommendation for a good place to start for (1) Left fork tube Preload setting and the (2) Right fork tube Rebound Damping setting. Currently using the recommended 5W Fork Oil. The rear shock is published at 6 turns out from full hard down. Thanks in advance for your help. Always appreciated

Hi all, I’m after a Scalvini exhaust for a 4 ride as I’m bored of the standard pipe. Would anyone know where is the best place to order from ? Thanks in advance , Andy

I have a 1981 Montesa 248 Cota. Engine No 21 M 51176. I need to replace the right hand timing case. I have looked at the parts manual and it indicate just a timing cover with a plastic chain guard above the front sprocket. The cover fitted to my engine is the whole length of the right hand crankcase and originally covered the front sprocket. It has a cut out at the front which perfectly matches the rubber grommet where the ignition leads exits. Does anyone Knows what Montesa model this timing cover comes from ?. The retaining screws all line up perfectly and the casing has the Montesa motif on it. Before I remove the damaged part are there any internal numbers that may a…

I recently purchased a 1998 315R with the Dellorto PHBH carburetor. The bike was pretty much a stock unit and I've been updating over the past year. She now runs well with a new clutch, rebuilt F&R suspension, recent piston, good gas, a fresh plug and a clean air filter. A new reed is on the short list. No performance complaints however I hear that a carburetor upgrade will take the bike from good to better. There are several opinions scattered across the forum as to which is the best upgrade. Some offer the later PHBL as the best choice while OKO, Keilin and Mikuni are also tossed about. So my question is three-fold: 1. Was the PHBH never a really …

Hi all I have been trying to fit a master cylinder repair kit but do know where the small spring is for.Thanks.

Does anyone know if the 349 Cota has spacers between seat tank and exhaust.my bike the seatgets so hot lying on exhaust that it cannot be ridden.we received the bike as a basket case .thanks for any help anyone can give

To carry out my other projects, I bought a 3rd 315R. A 2002 model. The objective of this one is to make a replica completely overhauled motorcycle, precise and efficient as the original for regular riding. The original fork (in very good condition) went on the Ogawa RTLF Replica. The fork (black tubes) of the 4rt (now RTLF) takes place after a major overhaul on this 315R The shock absorber is completely overhauled (gaskets, buffer, drain, pressure, ball joints) New linkage, new rockers. Carbon swingarm protection, and carbon kevlar fork guard. Swingarm pad, crown guard, front number plate, gas barrel, original grips. The covering receives a two-component varnish resistan…

Hi all My Cota 310 (1990) used to run fine and now it does not spark. Does anyone have a wiring diagram (that I can get a copy of) And any common faults or ideas? Thanks Simon

If a 4RT runs out of gas are there any special procedures required to restart after filling the tank? I'm thinking maybe bleeding air out of the fuel pump or injector. I don't see anything mentioned in the owner's manual. Thanks.

Cota 348. After rebuildinbg the engine the gears do not shift smoothly, so the engine is in pieces again. I want to set the end play on the drive, input shafts and the shifter shaft. Can anyone tell me what the end play tollerance is and if anyone has any advice then please share.

Hi, Hope you will enjoy this project bike. Historical review. (google translate ...) Dougie had been riding for Beta for ages. He won the 97. 98. 99 world outdoor titles on the Techno. For the year 2000, Montesa - Honda offers the services of the English champion. In the commercial career of the 315R, the year 2000 saw the arrival in series of the Showa fork and the DID rims mounted on machined and polished hubs in their center. Doug's factory bike will foreshadow the 2001 production model in the following ways: -A longer exhaust tip. -A swingarm assembly modified to accommodate a caliper hidden behind it. (the rear hubs are narrower) -A shock absorbe…

Hello, I am looking to purchase a PHBH26CS carburetor as I destroyed the threads that hold the bowl to the body on my 1997 montesa cota 315R

I found this bike 2 years ago. I like big alloy frame bikes and the 311 is an interesting model. Not a design masterpiece , not fashion bike, but cool. The bike is in good condition. Let start by the wheels. Cleaning everything, paint job, new bearings (I love working on wheels) I have a brand new platics set. The engine need paint job (main bearings, seals, maybe piston will be replaced) Marzocchi shock need full service. Every rubber parts will be replaced as usual on +20yo bikes ... (carburator, fork, hose, seals, grips, tyres... ) Calipers and master cylinder will be restored. …

After Ogawa's bike, here is the Colomer replica 1996 project. Special features of this motorcycle compared to the 1997 production version. Morad 36 spoke rims mounted on polished hubs. Païoli fork with DLC treated tubes. (not the 99 model black fork) Brake and clutch hoses with purple banjos. AJP front caliper previous serie with 31.8mm alloy pistons Flat tank Disc protector 314R 1995 “Colomer” headlight and more. AJP caliper with alloy pistons (Grimeca on the 97 model) …

Motegi 2004. Japanese opening round of the world championship. First official release of the replacement bike of the Montesa 315R. The prototype of the RTL250F is presented to the public. Tomoyuki Ogawa will finish 9th. The legend of the 4RT is on the way. Here, I will show you my replica. It's a 2006 4rt. I was able to contact "Gatti"(T.Ogawa nickname) He saw the first photos of the restoration and appreciated this approach. While emphasizing that this motorcycle represented the beginning of the adventure. Adventure during which he piled up the Japanese championship titles on his handlebars. I asked him some questions about this bike rega…