What oil ratio? '01 YZ250

[RMrobbo]

I just bought a new YZ250, and the guy said he ran it at 30:1. This sounds quite rich. Is this the correct ratio?? I normally run my bikes at 50:1, with castrol TTS.

[poorbastard]

Not sure. Im running the RM at 30:1 thats what the last guy said he ran it at and it seems to go fine.

Best bet would be to get a manual and have a look I guess

[WRT]

I'm running 40:1, using Motul 800. '01 CR250R, also have a mate running the same in a '99 YZ250. Using a good oil you can go leaner, if your using a cheap oil - dont.

Have run it at 50:1 in the past, but for the sake of a little smoke trail (which smells nice from the Motul), I run with the 40:1 and even add an extra dollop from time to time.

[XTC]

I ran my YZ at 40:1 also.
PS - You need to change your name to YZRobbo :)

[WRT]

PS - You need to change your name to YZRobbo :)

LOL - Cant be that "wise" if hes asking us for info! :nya:

[cheese]

yeah 40:1 is the go. manual says 32:1 for a RM250. Motul 800 is the best oil too (so I've been told)

[Brian d marge]

I am in the 32 to 1 camp, ( cr250 ) But I move up and down depending on the mixture I require

add/subtracting oil is a great way of jetting. So you can fine tune the jetting

Stephen
who ya gonna call .... Crank busters

we bust those cranks !

[RMrobbo]

LOL - Cant be that "wise" if hes asking us for info! :nya:
HaHa, yeah thats given me an idea I might change it to YZguy now!
Cheers for the help everyone, it seems theres a few different opinions...
I might go with 40:1, it seems like the middle of the road.( or track)