Two-stroke trans oil

**Lion** · 27th April 2007, 21:29

Nah I used some old motor oil in that. Wouldn't happen to have a spare tank would ya? My mate crashed it and now the tank is fucked.

**Rupe** · 6th September 2007, 17:33

So is it ok to use ATF? or is it best just to buy the proper stuff?

**Danger** · 6th September 2007, 18:09

Dexron III ATF is all I ever use. Change it every 2-3 rides.

**Lion** · 6th September 2007, 20:38

Originally Posted by Danger

Dexron III ATF is all I ever use. Change it every 2-3 rides.

does it depend on how long the ride is?. i only take my bike out occasionally for half an hour at a time. thanks

**crazybigal** · 6th September 2007, 20:50

what he was sayn is atf is so cheap and the bike only takes a Litre so you may as well change it more often, but you will be fine changing it every now and then.
i drouned my bike and had to drain the fluid, came out like pink goo

Originally Posted by Lion

does it depend on how long the ride is?. i only take my bike out occasionally for half an hour at a time. thanks

**cheese** · 6th September 2007, 21:20

I think that every 10 hours is the general rule.

**Lion** · 6th September 2007, 22:05

sweet will go buy some tomorow thanks

**Danger** · 6th September 2007, 22:56

Yeah Cheese has got it about right. I try to change mine every 2nd ride and I usually ride about 3-4 hours at a time. But if after two rides the bike is not dirty enough to wash (like sometimes after those Woodhill rides the bike is still pretty clean) but still a little too dirty to work on, I'll stretch it to three rides and change the oil and bleed the brakes after cleaning the bike. Makes it easier and less chance of contamination working on a clean bike.
So two rides minimum, 3 rides maximum between oil changes when using ATF is my rule of thumb.

**cheese** · 7th September 2007, 09:04

You bleed your brakes as well? Gosh!

Um still waiting on my tax refund greg I'll bring all my suspension in for you to service.

**Danger** · 7th September 2007, 10:02

Sweet as. Yeah my rear brakes get really hot and the brake fluid deteriotes quickly. To ensure maximum braking performance I find it best to bleed them after cleaning the bike and at the same intervals as the gearbox, if not sooner if they have had alot of abuse.
Use dot5.1, not dot5.

**Reckless** · 7th September 2007, 10:45

Originally Posted by Danger

Dexron III ATF is all I ever use. Change it every 2-3 rides.

Danger, Didn't you say one of your bikes was out because of a bit of the gearbox that fell out. I'm not so sure about the ATF.

I use Motul (only because I get it wholesale through a mate) and change it every 10 hours.
When we raced karts we always used proper gearbox oil, Castrol or Rock in those days. Changed it only twice a season. Our 125's where doing over 12,000 revs, on methenol, had 50 times as many gear changes per lap as you guys, had no clutch, clutch baskets, plates or springs. Removed them for more power! We'd pull it through gears under full power on occasion and mostly with just a flick off the throttle then change quickly back down 4 gears on 3 metres. Never blew a gearbox.

**k14** · 7th September 2007, 11:13

I use shell advance synthetic. Never had any problems in the rs and it needs to be fairly high performance. Change it every 3 meetings usually. Not too hard on the pocket either, about $17 per litre iirc.

**Danger** · 7th September 2007, 12:19

Originally Posted by Reckless

Danger, Didn't you say one of your bikes was out because of a bit of the gearbox that fell out. I'm not so sure about the ATF.

Yes, a bit of tooth out of the g/box or some drive part on the 200. But this is an 02 bike with a lot of very hard miles on it and its the first g/box problem I've had. Not sure what it is because I have not had a chance to pull it down yet.
FWIW my mate AJ has done his gbox on his 07 200 recently (dead toad), also did the same thing on his 06. Not sure what oil he uses, but I know its not ATF. So I think my gbox life has been very good.