6 replies to this topic

[Revfinn]

Hi
Just got this great bike, but i have conflicting advice about oil mixture

What should it be 75cc to 5 ltrs or 100cc to 5ltrs

Also semi synthetic of fully

Last question ATF Dexron for gearbox or what?

Thanks

[mozchops]

Hi mate 12.5ml oil to 1ltr perol (super unleaded) i buy 4ltr of fuel and add 50ml of oil just to keep it simple.
use fully synthetic oil and dexron 3 for the gearbox or type f
hope this helps

[JSE]

Revfinn, on Feb 11 2010, 06:55 AM, said:

Hi
Just got this great bike, but i have conflicting advice about oil mixture
What should it be 75cc to 5 ltrs or 100cc to 5ltrs
Also semi synthetic of fully
Last question ATF Dexron for gearbox or what?
Thanks

Probably 75cc's per 5 Ltrs, full-synthetic and Type-F ATF would be your best bet.

jon

[RichT]

I do 70cc to 5Ltrs (about 70:1)
Castrol TQ-D is the stuff (ATF Dextron III)

[des]

it should be a 50-1 mix 100ml to 5 ltrs some like to run a little leaner so 75ml to 5ltrs should be ok to just see how smoky the bike get or better still ask the previous owner what they used.

[Lightfeet]

Hi mate, I have exactly the same bike as you and you do tend to get conflicting advice, Gas Gas themselves will tell you premix is 80:1 then some people that I trust have said 70:1 the gas gas manual for 09 that I got with mine does indeed say 80:1, I played it safe and went with 70:1 as long as you have got a bit of smoke from your tailpipe when your pottering about it will be fine. Also I do believe it depends on the oil you choose, personally I use Castrol TTS which is a bit lilke p*** (As in thin) where as a mate of mine prefers Putoline for piece of mind as its a lot thicker, a guy I know a bike mechanic said that he used to assemble engines with a bit of putoline coated on parts as its sort of sticky so it was good for that. Always err on the side of caution I'd say, its much cheaper to replace a fouled plug than rebuild your slack top end!

As for transmission oil, i use the Castrol QTF which is an automatic transmission fluid (ATF) its in 1 litre bottles and you need 400ml in your bike, so what I do i buy 2 bottles which is £12 and that way I can get 5 oil changes which allows me to keep the changes very regular, say every 3rd outing i'll change the oil. For £12 its worthwhile. Once you put your 400ml in just turn the bike over for a couple of minutes then let it settle, get the bike on a nice flat level surface and your oil should be exactly half way up the window on the clutch cover.

[Revfinn]

Thanks for all you help and advice

What is the difference between dextron 2 and 3 ?

Edited by Revfinn, 15 February 2010 - 10:36 PM.