Gas Gas

Hi all. Would anyone have any advice (vids or pics) or could point me a in the direction of any info on the stripdown and rebuild of the 70cc engine from the 2003 txt 70 rookie. Tia Neil

Hi there. I've got an 07 gasgas 280txt pro with the 40mm marzocci forks and I'm struggling to get the cartridge apart. I've got a pin spanner tool to turn the reboot cap but I can't seem to remove it. I can raise it enough to expose two hex nuts on the shift. 19mm and a thin 15mm nut, but I can't separate then. It feels like I'm going to break something. Any tips on how to disassemble? Thanks

Hi ive got an aprillia climber 280 1993/4 and unsure of how to change the oil. I also would like to know the best oil for the bike, thanks in advance.

Hi all. I've seen it documented that later models have a gap between the left swing arm and the frame. Is this the same for older models? My 2002 txt 200 has roughly a 5mm gap

Hi all, I'm new to the forum so apologize in advance for the question I'm about to ask, because the more senior members (that have been on here a while) will have probably beaten this horse to death several times...but...LOL...here goes...does anyone have a link to an actual service manual for a 2007 TXT 280?

Evening all, I’m after a little sanity check. My new to me bike has developed a bit of a knock, but it doesn’t seem to be directly engine related. It occurs under throttle openings but also occasional knocks on the overrun too (about in time with the exhaust pops) I've tested for potential pinking by running on the choke (just about manageable) and I know the clutch makes noise until disengaged. I decided to get a new header gasket and orings to try the cheap obvious fix first before tearing into the engine. And as I stripped away the mud deflector noticed the header looked like this. Removed the exhaust and cleaned the header (clamp straightened…

andrenld Posted just now Hello.guys I am currently looking for new parts for my gasgas jt25 contact 1995. I am looking for al the bearings in the swing arm and rear shock. Crankshaft bearings Al the seals in the engine and cilinder. Also looking for a lot of new parts to restore the whole bike. Do you guys have any idea where i can find those parts? Thanks for helping me Andre Netherlands

Hi all, ive been ridding on the TXT for a few weeks now and loving it. I have a strange issue where it will be in first gear and I can be moving and all of sudden it stalls and locks up. The bike won't move if I pull the clutch in or not its like its stuck solid. After a bit of rocking back and forth I can get it in neutral and away I go a again. The first time I thought it was rider error. Its now done it twice today, the motor/transmission sounded rattly before both times. The rest of the day its sounded sweet. Its like its not engaged properly and jumps out of gear but instead of a false neutral it just locks up. Any common issues I should be looking at other than buyi…

The waiting begins. Really looking forward to seeing how this develops. EM paved the way but they are really going to be hurting once a few more electrics get released and this latest prototype looks very interesting.

My husband has just bought my 6 year old a Gas Gas txt boy 50 2002. When he purchased the bike the seller got it working and when we got it home my husband got it working fairly quickly, however after it had been turned off we couldn't get it kick started again. We ve had the bike to a mechanic and he's checked things like, the carb (fully stripped), the spark, fresh fuel and it still won't kick start.. please can someone help??

Hi I have a gas gas ec 125 from 2014 and have recently come to find it has a burnt out magneto and needs a new cdi. I have found the magneto quite easily although can’t seem to find a cdi in stock for that year. Does anyone know if the 2015 cdi is different? Looking to buy in Spain or Uk.

I fitted new seals and am a bit baffled. One seal is leaking. No scratches on fork leg but you can see the oil bubbling up very slowly past the seal. Seal is in the correct way, open side facing the oil.... Any suggestions greatly appreciated.. Gary

Hi - this disintegrated whilst rebuilding the bike… any idea which part / part number it is? I can’t see/find it in the parts book. 🫠 07 TXT Pro 250. Can’t add or link it at the moment… it’s a plastic part that’s right under the headstock and the tabs come round the frame.

Anybody put a regular dirt bike throttle on a trials bike . I broke my wrist years ago and I can't turn more than 1/8

So, the S3 low comp head arrived for my 2000 TXT 250, it's a work or art, half tempted to put it on the mantle piece but I'm sure it'll be more useful on the bike! I've had a search online and I'm seeing different values for the torque required on the head bolts after fitting. I've seen everything fro 15 - 25 ft lb. I was expecting to see NM. Has anyone got a definitive answer for the older pre pro engine? Cheers

I bought this 300 with a China Keihin PWK 28 and worked okay but not run right but not lean on pilot So I put the original Dellorto 26 back on but it is lean on the pilot had a 35 I raised it to a 42 and it changed nothing I turned fuel screw out till it was going to fall out It still lean no change I have cleaned and cleaned I don't see the problem How does fuel get to the metering screw I see how it gets out into the venturi not in

I am possibly going to look at a little GasGas txt 2000 50cc twist and go for for my lad. Apparently it did run but know the guy can’t get it started after it’s been sat for a while. What sort of psi should I be looking at on a compression test? Obvs it will be cold too, also do you test with throttle wide open the same as we do on 4 stokes?

Hi all, I've had a frustrating few weeks of coolant problems, tired leaking pipes, jubilee clips and coolant dripping here, there and everywhere. Finally diagnosed/realised that the coolant hose insert into the barrel of my 2004 125 txt pro is very slightly weeping. I removed the insert (which was only just finger tight) and cleaned it up and when checking the fibre washer, it just disintegrated. Bought a new fibre washer to replace it but just wondering if I should use some form of sealant on the threaded insert, some thing like gasket sealant or PTFE tape for instance? Thoughts and advice appreciated.

So the txt 280 pro is up and running, gets up to temperature fine and the fan kicks in like it should and seems to ride fine. I have noticed that the small breather pipe exiting the casing near the gear lever is slightly dripping oil, seems and smells like gearbox or atf oil. The pip is routed out by the bottom of the rear shock. Seems to drip only when revs are increase. Is this normal? Sorry I am just not that clued up with these little 2 strokes, gimme a Japanese 4 stroke 4 cyclinder race bike any day of the week 😂

Has anyone installed an S3 Low Compression Head Replacement? My 2023 Gasgas 250 TXT Racing is too lively for me and it feels like the throttle is either at idle or full on with very difficult low rpm control. The thing just jumps out from under me with the slightest twist of the throttle. It’s also hard to start and almost impossible without leaning it against a tree or a rock to stand up and kick the crap out of it. My old Yamaha TY250 was much easier to control and start. I’ve installed a slow throttle that proved somewhat helpful but now I’m considering an S3 low compression head. Does anyone have experience with them and what can I expect? Thank you so much for your h…