November 8, 200916 yr Hi Just bought a 1998 Gas Gas JTX 320 trials bike (first one) i've had crossers before but there a little different. Bought this bike and it doesn't have a manual so i have no idea what type of Transmission oil to use. Anyones help with this matter would be much appreciated better still if you could post a link of where to buy some on the net that would be great. Cheers Trials Virgin
November 8, 200916 yr cant remember what i used in my gassers but imagine light gear oil would be fine, have a look at the site sponsors on here, all have web sites to buy from
November 9, 200916 yr cheers any suggestions people? My son has a JTX320 (the JTX is the 1997 model) and we found that 650cc's of Dexron III ATF works well. Change it often and you won't have any oil related trans problems. Jon
November 26, 200916 yr I just drained the oil in my JTX 1997. funny thing is cant find where to pour the 650cc back in. Am I being stupid here or what?
November 26, 200916 yr I just drained the oil in my JTX 1997.funny thing is cant find where to pour the 650cc back in. Am I being stupid here or what? Nope. This is a normal question for these bikes. Most had an aluminum plug near the kickstart on the sidecase, 6mm Allen socket, and it takes some time to fill the case. Its sometimes easier to lay the bike on it's side, take the clutch cover off and slowly pour the oil on the clutch pressure plate. The small 3mm buttonhead Allen screws that hold the clutch cover on will probably be stripped out, but you can use a T-15 Torx bit as an extractor (tap it in and use a little pressure on the rachet head when backing them out, like you would with a regular easyout bit) and install them back in with the Torx. The 6mm plug will also probably be stripped, use a T-45 Torx on that one. Cheers. Jon
November 27, 200916 yr Thanks, would it not be easier to turn bike upside down and fill from where the oil drained? No it was not. Filled through the side pug on clutch side quite easy. Thanks Edited November 29, 200916 yr by Yanto
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