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gaz12349

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Posts posted by gaz12349
 
 
  1. Hi. Ive got my old 05 mont 4rt up for sale and im looking to buy my first gasgas. The one ive heard a few people mention as a really good bike is the 2012/2013 model. These are in my price range so its the one i'll probably go for. Could any of you tell me the differences in the bikes throughout the years starting from the early 2000s up. Or link me to an older post with information. Things like frame change, steering changes, suspension change, engine etc through the years. And also things to look for when buying besides the general maintenance parts like brakes, bearings, chain/sprockets etc. Thank you. 

  2. On 8/26/2021 at 12:01 PM, faussy said:

    Although a relatively easy fix, check that the clutch doesn't excessively drag or slip. And if it has mag cases check they aren't cracked at the bottom engine mounting. Maybe a test ride and make sure it gets all the gears but don't be alarmed with a clunk between 4th and 5th. Also check the petrol tank isn't leaking where the tap is fitted. After that, just the usual stuff. From 2011 till now you won't find much difference between how they ride. The techs are a slight improvement over the marzocchis, not much, although the early tech gold coating wore very quickly and looks a little unsightly

    Thanks for the response. Regarding the clutch, would that be a case of worn clutch plates?

  3. Hi. I've got my 05 4rt up for sale as looking to move to a GasGas (wish id bought one instead of the 4rt) ideally i'd like the 2013/2014 250 raga rep as I like the suspension upgrades. Anything I should look out for before buying? Any common faults etc. Also what model/year would you experienced gasgas owners/riders say is the best and why?

     

    Cheers.

  4. On 11/21/2020 at 6:29 PM, huski said:

    Change the gearbox oil often on a Gas gas,it lubes the main bearings too.

    How often? I usually do the mont every 25 hours. Book says every 15 but the oil is almost £30 a liter and find no difference running it that extra longer.

  5. 18 hours ago, sectionone said:

    A friend has a 2013 Gas Gas Pro and the main bearings were replaced twice, tank is soft and leaky and the idler gear bearing fell apart damaging the primary and clutch gear teeth.

    I have a 2005 4RT and like it as well as my 2007 Sherco and 2007 Gas Gas. I think the Showa suspension is better but prefer the lighter 2 strokes for competing. I also like the grabbier clutch of the Montesa and Sherco over the Gas Gas.

    Thanks for the info. I've got a low hour 2013 250 pro lined up for sale once I sell my mont. It's been serviced by the right people and has had light use. I hate the clutch on the 05 4rt. Especially in streams. I find I have to slip the clutch because it feels like the bike wants to run away soon as I release pressure from the lever. That added on top of the hyper sensitive steering it makes riding the bike a handful. However blatting through the woods on trails it's awesome. But overall I find it much more difficult to ride than my old 2006 sherco 290 and I've always wanted a gasgas (never owned one) so it's time to try one.

  6. I've got a 2005 montesa 4rt. I find the 05 mont hyper sensitive on the front, the clutch is like a switch, the engine breaking on this particular year is very harsh and the suspension isn't as plush as a lot of the 2ts feel which makes the bike feel heavy. I've tried to give the bike a chance but it's not for me. I'm looking at getting a 2013 250 txt pro once I've sold the mont. What are they like? Any particular things to look out for? 

  7. 19 hours ago, jonnyc21 said:

    I would check the timing chain tensioner, that's the most common cause of small knock on the 4RT's if I recall correctly.  

    As for maintenance on my 07 4RT, I haven't ever needed to change anything on it but oil/filter changes, clean the air filter (replaced a couple because of use).  I do swap the plug out every year or two but probably could get away longer change cycles.  

    Thanks. Just had a look at some of the other posts regarding the timing chain tensioner. Certainly something I'm going to check. It would be nice to replace it with a manual one and cure the mild knock. I change the oils and filter every 15 hours. However using the ELF HTX 740 in the gearbox is getting expensive! 

  8. 2 hours ago, gasserguy said:

    If it ain't broke, don't fix it !!!

     

    It seems to have a very very mild knock on idle. I can't locate where it is. Doesn't sound like the valve clearances however I don't adjust them as often as I should. Other than that the engine performs great. Plenty of power for me.

  9. Have any 4rt owners done any internal engine work on the 4rt? Reason I ask, I've got a 2005 4rt (first batch off the production line frame number low 900s) and I have no history of any internal engine work done. In my ownership I've followed the book and replaced the oils and filter every 15 hours using the recommended oils. The book says the piston is to be changed every year however this could be the original piston for all I know. The bike runs great and pulls well. Is it worth the rather large expensive of rebuilding it? I'm not concerned about the labour as I'd carry out the work myself however the parts add up to quite a lot.

  10.  

    On 6/27/2018 at 8:04 PM, oni nou said:

    Interesting to see that the bike also uses the now discontinued[to the general public ;except for NOS]AJP large clutch m/cylinder and also the old 2 piece 4 pot AJP front brake calliper that I recently noticed is still being used on Toni Bou's bike also;along with the 20 odd year old Nissin 11mm front brake m/cylinder.......Clubmen everywhere must be laughing their heads off that the top works riders budget does not stretch to the cutting edge hydraulic parts that they have fitted as standard on their production bikes such as the very special and superior mono bloc calliper,poor old top works riders are at the trailing edge of technology.

    Comedian Marc Colomer " The suspension is nothing special...just settings"

    I have that master cylinder on my bike (or very similar) and it's the only one I've not had to service and million times unlike the AJP. Shame They don't make a rear brake master cylinder that fits the 4rt as mine has recently decided to leak from every possible exit. 

  11. On 1/2/2015 at 5:53 PM, gasgas125otis said:

    I'm 17 in January and I'm going to start driving lessons, when I have passed both my theory and practical is it legal for me to have a bike rack on the back of my car to transport my gas gas or do I have to be a certain age? Strange question I know, thank you in advance for any help.

    Check the nose weight on the car you're using. Most little cars are around 50kg so technically it's not legal but you'd have to get pulled by a police officer on a bad day for them to actually choose action I'd imagine. Just take in to consideration a trial bike on the rack and all the gear loaded in the back will increase the chance of understeer while driving. So just take your time when driving with a bike on the back in a little car. You should be fine though.

  12. On 5/12/2009 at 3:59 AM, masso said:

    master cylinder didn't make much difference ..smaller ront sprocket helps a bit

    best thibg I've heard was this guy whi took a hammer and whats the word...little pointy metal thingy ....and put a bunch of dents in the metal plate so it looks like a golf ball ...said it worked great!!...the little dents retail oil..keeping plate oily .......shouldn;t have to go to so much trouble fora ten thousand dollar machine .

    I got me a sherco ...the clutch is a breeeeze..and I can get it into neutral

    Do not take a hammer to the clutch plates....... Jeez. You can buy a new dimpled set for like £30. 

    Mine has the dimpled clutch plates, the correct ELF HTX transmission oil and new seals In the AJP master cylinder. 315 master cylinder makes no difference. The bore/diamiter of the plunger is the same as the 4rt master cylinder so you are gaining nothing. No increase in pressure etc. I can always get it into neutral with ease while it's running. My clutch is quite switchy but I've just  accepted I have to get use to it. Can't think of anything else to cure it. The engine breaking doesn't help matters either.

    • Like 1
  13. On 5/18/2018 at 4:56 PM, jimmyt said:

    Hi got a 2006 4RT not had it long clutch feels like it needs a good clean. Any tips for taken the clutch apart and cleaning the plates or is it much the same as say a Beta set up. Cheers for any info

    The whole basket takes out so it's a simple process. Recently done mine as I had to change the kickstart return spring (along with a complete rebuild of the bike, thread/pics coming soon). Make sure the area you're working in is clean. Lay it down on a clean towel and go through the plates one by one. Insect/clean etc. I'd recommend the dimpled clutch plate set and using the recommended Elf gear oil. When you put it back together make sure to use a new gasket and make sure the surface area is clean and flush before fitting. Check the seal on the master cylinder too and make sure that's all good.

  14. On 9/25/2006 at 5:00 AM, masso said:

    well, I'm surprized you are not inundated with replies!

    the clutch was the first thing we worked on... mine was terrible!

    for a quick fix..try automatic transmission fluid that works well, or use the actual oil recommended in manual ...

    everything else ain't no good

    then you get the clutch leaver and reservoir from the 315....it works better

    then you get aset of mitani clutch plates...........by this time it should be working well

    why they couldn't fix this on the world's most expensive , most hi-tech machine is beyond me .......................................masso

    Could you please explain why the 315 reservoir/master cylinder works better? I've seen this a few times on various treads. I know it holds more fluid however the plunger diameter/bore is the same so it won't be causing anymore pressure than the standard AJP one will. I just can't see how it will make a difference. I also read a thread on another forum called "improving the 2005 Montesa 4rt" and they fitted the 315 master cylinder then went on to say it was an unnecessary mod as it made no difference at all. No having a go I'd just like to know your opinion on the subject. Cheers, Gaz.

  15. On 3/22/2016 at 5:54 PM, jimmyl said:

    Not aware of any benefits - all 3 of mine have had this mod - been on 4rt nearly 10yrs.

    Hi Jimmy. Do you have a filter on either of the head breather pipe or the transmission breather pipe? I'm currently rebuilding my 2005 4rt and noticed the strage tank is missing and both pipes were just up at the headstock above the radiator.

  16. 15 hours ago, sportsawyer said:

    Check the owners manual, pages 2-12 through 2-18 for the standard routing of the crankcase and gearbox breathers. If the crankcase breather ends up going into the airbox port, it may be better to put the catch tank back to reduce the chance of oil going back into the airbox. Some people plug the airbox port and leave a hanging breather end, like the gearbox breather. This guarantees you won't dump oil in the airbox, but on the other hand means you may get dirt / water sucked into the head. Personally, I run mine standard and haven't had any problems. There's also a clear drain cap on the bottom of the airbox. You can look at that and if there's water or oil in the cap, just pull it and let the airbox drain, then put it back on.

    The tube running from the intake port to the injector assembly is a vacuum hose for the pressure regulator on 2005-2015 bikes. Only thing to do there is make sure it has no leaks.

    Thanks for the clear information. I've been rebuilding the bike completely, I replaced the old airbox drain cap with a sherco one as the old one went rock hard. Im almost finished building the bike I just noticed it was missing this strage tank and the pipes where just left up at the headstock. I'll have to order a strage tank. I'm guessing the transmission breather goes into the strage tank too?

  17. Hi all. I'd like some advice on the breather system on my 2005 4rt. The previous owner must have binned off the white plastic catch tank thats fitted under the headstock. He's relocated the pipe from the left hand side of the cylinder head to the airbox. Theirs another pipe going from the right hand side of the cylinder head to the injector and a transmission breather that is just pointing down where the swing arm and rear shock is. It doesn't quite look correct to me. How should it be set up as i can't find much info on it in the manual. 

    Cheers,

    Gaz.

  18. If you know anyone who owns one then I'd recommend riding it for a full day but take the 315 as well so you can see for yourself what they're like side by side. That's the only way you are going to know what's the best option for you.

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