Gas Gas

Hello. I was replacing the rear master cylinder piston on a 125 txt I picked up for my son and it wouldn't bleed at all afterwards. After checking some of the threads here I pulled it back out and put a syringe on it to force some fluid through but it seemed to be blocked. After taking the piston back out it appears to be a different length to the original (longer) and the seal blocks the port from the reservoir once the circlip is installed. Is it me being daft or is the piston wrong? It came in the proper kit for this master cylinder.

Morning everyone, I'm running out of search ideas trying to find a new rear brake hose/line for a 2000 model txt250? I can't even find a second hand one! Is my only choice to send it to Venhill and have it copied or are there ones out there that are generic? Cheers.

Got some play in mine, just spotted it, most parts places closed until into January… anyone know the spec/numbers for the bearings? Lots of places still open over here in Abu Dhabi, should be able to source them. Cheers. 🍻

Hey. I will replace seals in the front forks on my son's Rookie 80 cc 2007. Does anyone know what it should be for the amount of oil in the fork. The fork is 38 mm

Hey im searching a rear fender for a gasgas txt pro 300 from 2006. The flexible one not the rigid. Last year i have ordered one on the wensite i always use but now theyre out of stock and i cant find them anywhere. Somebody can help me out with a webstore? Im from italy so best would be a store in europe.

Hey fellas, I'm having trouble locally sourcing a 11T front sprocket for my 21' txt racing. It's an 19 spline sprocket and it looks like there's nothing available in the USA. I'm a smaller rider 5'7 145lbs on a 300 so getting more top speed likely wouldn't affect the bike. The thing pulls me around like I'm not even there and first is way too short, I'm mostly riding trails, single track, hill climbs. Any input is appreciated and happy holidays.

Does anyone know where I can buy o-ring for exhaust for cadet 80?

I've tried many things but the water pump, or especially the O-ring assembly keeps leaking coolant after doing the water pump rebuild again. It is a slow drip, I have accused all the other joints of being leaky and changing clamps and such. The leak is around the body of the water pump and I just can't get the surfaces to mate as I would like. I Have tried maxima grease at least 3 times, is there some sort of acceptable sealant that would help that little O-ring? Truth is that I quite like the bike, 2012 Raga 280, no new replacement coming in soon! Anyone had problems with this O-ring?

Hi! I’m new to the forum. I searched and couldn’t find anything on the subject so I apologize if this has been asked. I can’t find a replacement rear fender for my 2002 txt280 edition. I talked to Jim Snell at Rising Sun and he told me they are all gone with no new ones anytime soon. I know I am not the only guy looking for a fender. This is a popular older bike. Has anyone successfully converted to a different fender like the txt pro version or something different? it seems like someone would have figured this out by now. I’m surprised no plastics company has started reproducing these. Or even 3D printed something? any info is super helpful. Pics even…

Just a quick question on the gas gas, looking a 2005 280, I’ve got a 1999 ive noticed the frame is different, but in the pictures, there looks like a kink in both sides of the frame on the top of the a frame under the tank? Is this correct, tried to look online and there’s a few that have it and some without… just looks weird also what would be a good price? It’s up at 1450 road registered. Looks clean and trust the guy, just thought it was a little high.

Hi all are the gasgas bikes getting built better now ktm are involved

Anybody know which way up the shock in a 95 JT 250 should be, or does it even matter. I think when I removed it, the blue damping adjuster was at the top of the shock, and the preload adjuster at the bottom. Is this correct. And has anyone rebuilt one of these, ie. drilled and tapped the body of the shock to replace the oil? Thanks in advance, Alan.

I've looked far and wide for a right side crankcase for my 17 GP 300 and not getting anywhere. I think the case from 13+ would fit but every dealer I've contacted basically said "good luck". Other than knocking on the factory door and daily searching eBay, I'm about to give up. Any suggestions or sources? Thanks Zack

G'day all, Looking at purchasing a used 2010 TXT PRO 300 and discovered a couple of tiny cracks in the headstock area during inspection. I found a thread with a much more catastrophic failure on here that had cracks which seemed to emanate from a similar area. I am sure the welds could be repaired, but I wondered if anyone had seen cracking like this before and what you all thought of it in general? Is that gusset on the RHS structural? I can see the RHS crack goes all the way through, but can't really check the LHS one, it could just be paint. There does seem to be a little bit of a crack in the paint on the weld directly above it also you might be able to see …

Hi, new here and need some advice. I've noticed that the rubber hose pipe going from the master cylinder to the reservoir on my bike runs under the suspension linkage and between the dogs. It's getting squashed and is also in a dodgy exposed place between the suspension and the ground. I think at some point the previous owner has routed it incorrectly, but I can't find any images online to show me how it should look. Can anyone help with the correct route this pipe should take? Cheers, JC

Does anyone have a link to the service manual for the 2003 rookie 80? Just got one for my son and we want to give it a full service. It would be good to go at it with a bit of info rather than just guessing. Cheers

Hi all, newbie here. I recently purchased a very used 2003 TXT Pro and quickly proceeded to torpedo the top end. Valuable lesson learned not to pin a 18 year old trials bike too hard up a long hill in the heat After pulling it apart it seems the cylinder is still smooth, only one thin vertical scratch. However you can see where the nikasil coating has worn through. General question: I only use this bike for practice and enduro skills development, as such I have a limited budget and would like to keep repairs as affordable as possible. Do you think a new piston & rings could be sufficient for low & slow riding? Any advice or vendors (US based here…

Hi there. I have a 2001 Sherco which is running 38mm forks off a 2003 GASGAS. I am currently servicing them. Can anyone tell me what weight fork oil they run, capacity per leg, and air volume? You know, all the usual stuff. I have had no luck so far finding any service information for these units. Thanks in advance. Tony

Hi guys I have a 250 05 gas gas. Needs new forks the only ones I can find is a 450 05 any one no If thay will go on mine

Signed off for a couple of days with sinusitis so more antibiotics and another weekend off riding… so thinking I’ll take this weekend to do the rainy day jobs on the trials bike. Main job is the crank seals plus got a new pair of piston rings to fit plus I’ll repack the silencer, grease everything whilst it’s apart, etc… anything to beware of when splitting the cases on these? Every other part of working on them is quirky so expecting something, don’t think there’s any consumable parts I’ve missed like lock tabs on the clutch basket or anything like that… just steady away and take lots of pics whilst disassembling… feedback welcome. Cheers.