Montesa 4rt problems I’ve heard people say the gear shift is too far away but not sure if this is true. does anyone know how to check this with some sort of tool or is it a case of getting anothern could i buy one from maplan rather than go to honda. I often have to open the throttle and kick to remap before it will start. Top build quality. It's only 14 weeks old, the air filter is spotless as is the plug, I only use good fuel not supermarket rubbish and the tick over if anything is Nov 20, 2024 · Or choose the Montesa Cota 4RT Race Replica with premium Showa suspension, race replica trim and specialty carbon parts. I was completely new to trials before i bought a Montesa 4RT on the recommendations of owner and people on this site about a year ago. U. This bike has not been started for a couples of months and have been stored in a cold and humid environment. Always at the pinnacle of competition, and constantly evolving, the 4RT is the ultimate trials machine. But it all depends on care. Don't know how. Since I had no tachometer on the bike, it's hard to say but I would think the throttle was opened 3/4. Bike working like new and when engine is cold it´s starts very easily, but after 30 minutes driving when engine is hot starting is nightmare. If i give little fuel straigth to throttle body engine start but running only few second Nov 7, 2011 · My Mate came off his 4RT at Cowm yesterday and the gear lever took a bash. I bought a nearly new 09 (It had only done 1 trial. Jan 10, 2016 · Another rider who had a new 4RT has said it's an issue and replacing the seals with new standard Montesa / Honda seals won't cure the problem, you have to use green seals. You will have among the best suspension of ANY available bike up to 2014! Jul 17, 2022 · Hi, I just buy mint conditions 120 hours used Montesa 260 RT 2014. You can make 4RTs fully modern without compromising compliance control, and the quality of the suspension will then more fully compliment the bike. The Montesa Honda Cota 4RT has always been recognized for its exclusive technological features, as May 15, 2019 · A guy at a recent trial said he removed several clutch plates from his 315 to cure his clutch drag problems! I have to say the problem is taking the fun out of riding what should be a very nice bike. Had a look through the 4RT manual on the net and got a bit of a shock. Feb 7, 2022 · ive got a new to me 2018 Montesa 4rt with a backfiring problem. give it a blast. Lol. Dec 12, 2024 · Warning: long message with copious amounts of techno-babble. Here's the strange thing, if I twist the throttle very slowly I can get all the way up to Oct 13, 2014 · The mitani clutch pack is very good and is well tried and tested. On the fuel pump, if you believe the promotional documents it was to get a bit more pressure from the pump but I suspect jimmyl might be correct that it was also a standardization thing. Apr 2, 2016 · Montesa ; 4Rt Spark Problem? 4Rt Spark Problem? By 2stroke4stroke, April 2, 2016 in Montesa. 4RT 260. ) and have the same problems as you. As for power I believe the fuel pump and mapping are both different from 2015 to 2016. When you are riding with 200 or 250 Beta, or on the other hand Montesa 4RT, you will immediately realise the difference. Montesa 4rt year 2008 which has been running less than 100 km. We still have the bike. The bike has done this from day one. I was reading an old discussion on this forum about whether the 4RT runs a “wasted spark” ignition (that is one spark per revolution of the crankshaft) rather than a more conventional (four stroke) one spark every 2nd revolution. May 2, 2006 · Thinking about buying a 4RT, just wondering about the maintenance compared to a 2 stroke. May 26, 2014 · Hi All, Got a problem that's got to be FI related I presume. When I picked up the bike, he said the exhaust valves were slightly tight, Nov 9, 2009 · Hello all, I apologise in advance because brake bleeding has been discussed to death on the forums. Jun 8, 2009 · Always amazes me when people say the 4rt is down on power especially from clubman riders, the bikes got loads of it rev the bloody thing. Jan 19, 2006 · I know the clutch problems have been well discussed but can anyone answer the questions regarding oil type? I spoke to a 4rt '05 owner at a Wessex Centre trial last weekend and he swears that the REPSOL transmission oil is c**p and exacerbates the clutch drag and snatchyness problems. The bike runs for approx 30mins then shuts its self down to tick over & half throttle. Drained the tank and removed the top banjo from the injector so I c Dec 17, 2007 · I've never ridden anyone else's bike until yesterday. View Specs Montesa Cota 4RT 301RR Race Replica Montesa Cota 4RT 301RR Race Replica Base MSRP $11,899 * Destination Charge: $600. The plug also slightly smells of gas. if you are a good rider then that wont be a problem, the 4rt is probably the May 8, 2014 · Sorry to dredge up an old thread, but since Ive discovered what some of the 4RT electrical connectors are, I thought Id share this info with anyone wanting to remove their bank angle sensor without butchering anything and allowing it to be re-fitted (for what reason I dont know). Here is my story of a Honda Montesa 4RT from 2005 with ignition problems there maybe can help you !!!. I have Beta 270 and its just too much for me anyway. I know that many of us just bite the dust and claims that its not causing any problems. engine stalled. Aug 22, 2007 · For club class rider, I dont have any doubt to recommend Montesa 4RT. I also noticed that the Raga Gas Gas clutch is quite loud. because it looses its signal it will cut off the fuel. He has just had the bike to a well known bike mechanic & friend &am Jan 6, 2020 · my old 4rt had a lot of engine braking and it could cause problems for me when I was just wanting to roll off the throttle and found it would almost stop dead. I have the task of finding out what is wrong with the motorcycle. First up was the standard 4RT 260. Jan 12, 2020 · Who would people regard as good 4RT problem solvers and repair ? I've tried all the usual bits (good spark) but I suspect fuel supply related problems. I will order a new jet and replace it. At the next trial I listened to every 4RT that I could and they all had the same noise to some degree. Page 227 of 227 < Prev 1 Jan 29, 2022 · Daughters 06 Beta 80, Wife's 08 Gas Gas 125 (was the worst of the bunch), my 07 Montesa 4RT. Foot pegs and levers aftermarket. Either one is a great choice for serious competitors and weekend trials enthusiasts alike. The bike is fantastic and always starts no problem when cold and usually 2nd or 3rd prod when warm/hot. After i had followed the basic test procedure for fault finding on this bike and found nothing wrong with the bike - i then decided to take a closer look on some of Jun 11, 2012 · I've had a somewhat similar problem with a Honda Montesa 4RT (2005) - but not at such high revs as you describe. With thanks Andy Cheers guys May 26, 2014 · Hi All, Got a problem that's got to be FI related I presume. 1 of 2 The problem is the ballast hanging onto it. I left the manual for him to check out the specs, etc. In its 75 years of history, Montesa can proudly boast of maintaining, year after year without interruption, the production of a model with the brand's emblem. I’m looking to buy a 4 ride next year with a budget for a 2 or 3 year old one. Took the bike home and stripped it all down, replaced the plug, checked all the connections for continuity and everything voltage wise is in spec with the numbers in the manual. The purpose of these messages is to help prevent damage to your COTA 4RT, other property, or the environment. I've bled a f Apr 2, 2010 · The Montesa Cota 4RT Thread. I decided that it's a good way of hearing if the bike is in neutral. Jan 20, 2016 · I'm thinking of getting a new Montesa. Jan 17, 2016 · Montesa 4Rt Starting Issue. -I have tried to 're-set' the ECU by opening the throttle wide open and kicking the bike 3 times (found this on a discussion on this forum). If you do not plan on hopping much and just want a carefree ride. Clutch in or out, in gear or not. Reply to this topic; Jan 1, 2012 · Hi Guys & a happy new year to you all,Here goes i am posting this topic for my friend again as he is still having the same problems. May 9, 2009 · I think that this is common on the Montesa. As I remember, the engine bearings and seals are standard fare, maybe the linkage had odd sizes. But in the 2012 NSF250R parts list, the assembly is broken down into component parts. I know the older Honda 250X's ate valves like bon bons and am wondering if the 4 RT does the same. Piston kits look easy enough to find, and once renewed should last a long time. They need guards to stop excess dirt getting in the air box. Honda Unicam power The Cota 4RT260 uses an exclusive Honda 259 cc liquid-cooled 4-valve Unicam engine that was designed and tuned specifically for the unique demands of trials riding, including the need for ultra-strong low-rpm power. Mar 8, 2014 · I once had a problem with a Honda Montesa 4RT 2005 that would not start. Oct 26, 2011 · I'm almost sure I have the same problem as you. Wheels and plastics 4rt. Then I also read on here a list of various problems. Here's the strange thing, if I twist the throttle very slowly I can get all the way up to Nov 20, 2010 · In the Montesa parts lists, it's just shown as a complete assembly. The top-ends do not last as long as the posters say. Still, we should check it anyway. A. New disc, seals and copper washers were fitted. Share Hi, I've recently bought a 2015 4rt which I'm having a problem starting when cold, once Sep 12, 2019 · Just wondering if anyone has fitted a external fuel pump to the 4rt to replace the internal one in the tank Edited September 12, 2019 by Rapidroy additional info Jan 8, 2006 · I am hoping that all you experienced 4rt guys can help me overcome a starting problem, as I'm new to this 4 stroke lark. (ED) Street version, COTA 4RT-260 (2ED) Street version, COTA 4RT RACE REPLICA (3ED) Racing version, COTA 4RT-260 (4ED) Racing version COTA 4RT RACE May 10, 2015 · I had this on one of my 4rt's, the only problem I have had in 9 years of 4rt ownership. Aug 16, 2015 · -using the Montesa owners manual I have checked every resistance specified - all ok although the Engine Temp sensor reading is 2. Sep 25, 2011 · Encountered a problem today. No part of this publication may be reproduced without written permission. Apr 27, 2007 · Hello All, I brought my 4rt in for a routine valve adjustment to a shop I'd never used before. Dec 6, 2014 · The most marked disadvantages the Montesa Honda Cota 4RT Repsol Edition has compared to its two-stroke competitors is more weight, slower throttle response, and less top-end power. By dye29, November 1, 2010 in Montesa. Mar 8, 2010 · Couple of bikes locally for sale, a 06 Montesa 4RT and a Beta Rev 3 270, also 06. I was out on it today for a short while and brought it home and washed it then fired it up to burn some of the water of the engine and thought id let it run till the fan came on. I’ve gone through 3 plugs so far and after every warm up, it’ll foul a plug. Honda recommend new piston rings every 6 months and a new piston every 12. Doesn't look that bad a job: Mar 16, 2020 · 06 Montesa 4RT. Any further advice before I put it back together would be gratefully received. Mar 9, 2013 · The problem always went away as soon at the top end warmed and the clearances opened up. everythin else has been checked n has good values other than this capacity condenser Nov 1, 2010 · does anyone no how to reset ecu on a 4rt as mine takes a good 5 or 6 good kicks to start and it has had new spark plug ,air filter, fresh fuel and idle set at 1800rpm but struggles to start so thought ecu mite need reseting regards ste Dec 18, 2022 · I recently posted that a friend's 4RT had a spark and a plug wet with fuel but would not run. I've read on here that you can just ride them, wash them, then ride them some more and occasionally change the oil and filter. What are your thoughts on them for reliability & rideability & general info . My lad rode my 4RT the other week and burnt the back brake out. May never have been done. 7k ohms not 2. Mar 31, 2018 · Hi , looking for some help with my new to me 16 4rt. When I turned the throttle back to 1/2 opened the engine went back to normal. When I rev the bike up in the normal fashion it reacts like I'v pressed the kill button and dies out to stop. The disc was warped and the cylinder seals were melted. The NSF250R break-out doesn't show a separate number for the pump itself, but it does show the number of the teabag filter kit (includes filter and o-rings for reassembly) which is 06160-MEN-A31 . If the problem was valve clearance on the 4RT, it should be present at cold start, not hot start. Sep 24, 2006 · But if the 06 4RT does have the problem with the draggy clutch, what is the difference between the clutch from a 05 4RT and a 06 4RT. Yes, the 4RTs are a little heavier and they dont grip like the two-strokes, but if you are willing to learn and put the time in, the 4RT is a very rewarding bike to ride and once you have mastered it, will have you grinning from ear to ear. Based in Northallerton North Yorks. But believe me. Started the bike in the garage yesterday without any problems so went to the trial today and now the bike wont't start as I have no spark. . Of all the bikes I've tried, the new tech forks on my std 4rt feel really close to a 2015 Cab edition sherco. It will shift up in to neutral but will not get any gears past that. I have no problems with this advise - its a cracking bike and i wouldnt swap it now for anything. I have also had 4RT's since 2005 without experiencing these bush problems, only normal wear after a couple of years, with the exception of one machine where it was necessary to replace fork tubes due to rock damage. California Proposition 65 Warning WARNING: This product contains or emits chemicals known to the State MONTESA COTA 4RT Owner’s Manual This manual describes the service procedures for the MRT250 COTA 4RT model: (J) Street version, COTA 4RT-250 All information in this publication is based on the latest product information available at the time of approval for printing. Seems that in addition to fresh oils, spark plug (and cap?) every 6 weeks. We are going to strip it at some point this week but if anyone has any suggestions what to look out In all its history, from 1945 to 2019, Montesa Honda has amassed a total production of 1,280,000 units, 445,000 units under the Montesa brand, and 835,000 units under the Honda brand. I believe EBC do replacement plates but don't know of anyone using them yet. Now the bike will not get any gears apart from first. Share (had a fan motor short on my 07 causing a problem like this), the rectifier Aug 16, 2015 · Hi there. I think most people actually mean the inital take off power not overall power more than anything,a 2 stroke will light up instantly where as the Mont needs to be coaxed with throttle build up and clutch. Thread starter PeteMoore; Start date 16 Mar 2020; 1; 2; Next. Oct 28, 2012 · My 4rt is getting to be a pain to start when it's warm. Mar 24, 2016 · As somebody else said, the Repsol uses Showa and the Std 4rt is Tech. They are too slow on the front and way too slow on the rear. Nov 30, 2016 · To check for a stuck-open injector, you could also just remove the tank / injector assembly from the bike (leaving fuel line and return line connected), position so fuel tank is normal (with some fuel in it) and injector is over something to catch fuel, and connect a battery to the fuel pump 2P black connector. Nov 20, 2024 · 2017 Honda Montesa Cota 4RT260 www. Picture of mine home made sump guard it is longer (protection for the link system) and gives more protection to the waterpump and flywheel. Share More sharing options Followers 0. Nov 18, 2013 · I had an 05 4RT that i gave to my lad and never had these problems. From cold it will start on the 1st kick virtually every time but when it's warm it's hard going. Montesa suspension feels more settled compared to TRS, GasGas and Beta that feel more lively. The 2023 Montesa Cota 4RT 260R delivers precision and control for serious trials riders, designed for top-tier performance in every ride. Discussion in 'Trials' started by Johnnyboxer, Apr 2, 2010. Jul 23, 2011 · I reassembled the carb and hey presto one running Cota 315R. I noticed your other post about reliability, you may want to double check your master dose not have a bur in the boar cutting the seal as well. Thats all i've used and have had no problems at all. Montesa is great for long hill climbs and winter riding, great for deep water crossings and deep mud sections. Using a good oil makes a big difference in the 4rt, there is a massive thread posted on the 2nd page of the montesa forum, probably worth a read too. com Key Features. Top reliability. Nicky said: Great to see you Nov 17, 2005 · I have a line on a nice 2005 Montesa 4RT (I know you're reading this Mike). By gassa1, January 17, 2016 in Montesa. It tends to continuously foul plugs as well. 6 as per the manual. reserves the right to make changes at any time without notice and without incurring any obligation. It sat running for about 10-15 mins as was not sure when the fans Feb 25, 2016 · Not had any problems getting parts yet. Turned out to be the throttle position sensorbasically it will read up to 99% but when you go to 100% the sensor will loose its signal and the engien dies. I'm trying to find out if they have any weird quirks or normal "problems" associated with them? Specifically valve train, etc. When I first had my Montesa I noticed the same noise. Bruce. Feb 18, 2018 · Hes came across a problem n is asking has anyone else had this problem with the condenser capacitator. My thanks to all you guys and I feel I have now joined the ranks of Delorto PHBH experts. You are on a Montesa forum and the Honda lovers never lie. This new 2023 model features a stand-out fuel-tank painted in Montesa’s heritage Red color. They're pretty hyperactive which for me is a huge positive. They need a better sump guard. Following advice from various sources, I; Checked that the air filter was not over-oiled and that the fuel cap was breathing correctly. The dealer is miles away but will only provide standard replacements under warranty, if they want the green seals they have to pay for them and the price that they've been Dec 29, 2020 · Hi guys. Dec 18, 2023 · 4RT has a super broad power band, the fuel injection is what makes the engine perform so well. By the way if you got a carb problem. Nov 1, 2010 · Montesa ; 4RT ECU RESET 4RT ECU RESET. I had a call from the local Honda Montesa dealer here in Denmark which told me that he had got 2005 Honda Montesa 4RT with some strange ignition problems that the owner of the bike had given up on. The bike is an '06 model and had no more than about 30 hours use. My story starts with a brand new Honda . New Honda Montesa Cota 4RT 2015 . Buy a clean one with low hours, not a clean well used one. 00 Nov 30, 2014 · The 4RT are very fun to ride (Though on the heavy side). Totalmotorcycle. it tends to only backfire (or after fire) when I’m holding revs at a higher rpm than idle. The mechanic is definitely competent, but totally unfamiliar with 4rt's. He had come running in second gear with a few revs and suddenly the . Mar 6, 2012 · I was cleaning out the filters from my 2 enduro bikes also, no problems with them, one was a Australian Unifilter and the other a TwinAir - both were more durable with better foam structure Maybe it was just a rogue filter, the new Honda one seemed fine MONTESA HONDA, S. MONTESA COTA 4RT 260R The Montesa Cota 4RT began a revolution back in 2006 with the all-conquering power and torque delivery of its four-stroke engine. Your COTA 4RT or other property can be damaged if you don’t follow instructions. It is not my own Honda 4RT, but a companion. Dec 1, 2012 · Montesa ; 4Rt 2005 4Rt 2005 power 1 10/30 semi synthetic for the engine and PJ1 clutch tuner for the gear box. Jan 10, 2016 · Thanks for the info. The owner had done a lot of things to get the missing spark back on his Honda Montesa Oct 27, 2013 · Problem: The 4RT suspension settings are old world. vyyfx kcaq ohgw zdjf ttvlfj axje xmj lihxjes nirpjhy zbsq