Oil threads are notorious for everyone having a preference.
75ml in 5L of any trials specific 2 stroke oil (it doesn't need to be trials specific, but it's easier than getting into specs and doesn't cost any more)
Gearbox oil, any bike specific gearbox oil, putoline light gear oil would be fine - they don't tend to have a draggy clutch so they don't need one of the more expensive oils.
I'm not far away near Durham and had a 1999 321 about 6 years ago, it might even be my old bike. It was a nice bike, amazing on hills. Check the fork springs, mine were cracked and the used replacements I bought were also cracked so it may be a common problem, I had to get replacements made.
Alright thats good info man cheers. I'm looking for new seals for the forks atm. But now you've said that I'm worried the springs are broken. Where did u get your replacement springs made?(UK)
I'm also looking for a foot peg spring and my rear shock and spring are really thick and hard to move. What would u do with that? Thanks alot for your time.
The mechanic would be correct that you need some free play in the lever, I had an 02 TXT I recall being able to loosen the nut and spin the bolt to adjust?
Alright so there's a threaded bar going up into the MS so that turns does it? Awesome ill have a crack at that tonight. Thanks for your reassuring input 👍🏻
Hi all so I've recently been getting my bike ready for a long day sesh on Saturday and so far I've re bled both brake lines and replaced brake pads. So all was good until last night while riding around my garden maby 5 mins after using/testing my rear brake I noticed it had siezed up. It didn't do that before but last night it was so hot it was smoking. So after it cooled the brakes came free and I took the wheel off and started to look at the pistons. After speaking to a mechanic today he advised me that I needed to adjust the brake lever piston going into the MS. So I'm going to have a look at that tongiht bit any other info or ideas would be much appreciated. I've looked into getting a rebuild kit but they don't stock them fro my bike anymore so it would have to be a new caliper. But after what the mechanic said I'm hoping it's just the foot pedal I need to adjust. Now I did look at the pedal a week ago and couldn't fathem how to adjust it. As there's only one nut and when I loosened it nothing came loose or moved. So scratching my head abit hear. Again thanks in advance for any help all. 🙏😀
Looks like a LWB Series III Land Rover holding the bike up. Good bikes those 321's, grunty motor, not much goes wrong. You don't need to buy a new master link, just undo the spring link and re-fit with pliers, closed end of the spring facing direction of chain travel going forwards. Keep the air filter clean, clean out the air filter box, they don't seal very well so water does get in, strip the carb and blow out all the passage ways and re-assemble. Needle is a D36, clip position 2nd from bottom, pilot screw set from 3 1/2 turns out from fully in, as a starting point. Out to richen, in to lean. You don't need a Gas Gas specific chain pad, most blocks will fit from other trial bikes, check the bolt hole distance between centres. Change the gearbox/clutch oil, it says 700mL on the casing but 650mL is fine, I always have used ATF rated to Dexron III as my preferred oil for well over 20 years, it's cheap and it works well, others have their own opinions. Great bike in it's day, not so easy to find wheel grip in the mud, a good Scottish bike. Bye, Peter B.
Hi what type of 2 stroke oil do you use and what ratio?
Hi I'm new to trials and I'm after some info on the fuel mixture ratio for the gasgas 199 txt 321 2 stroke bike. Also what type of oil and what engine oil please and thankyou in advance.
1999 GasGas 321 txt info
in Gas Gas
Posted
Alright thats good info man cheers. I'm looking for new seals for the forks atm. But now you've said that I'm worried the springs are broken. Where did u get your replacement springs made?(UK)
I'm also looking for a foot peg spring and my rear shock and spring are really thick and hard to move. What would u do with that? Thanks alot for your time.