Rotax max Fr125 gear oil and mix gasoline

1

Hello, I would like to know which oil I should put in my gear, between the three, Sae 30 - 50cc, suggested on the engine, and if the motul grandprix is a good choice, 50:1, for my mix of gasoline with premium. I don’t race, just to ride on the track. I am in Quebec, Canada ! Thank’s

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2

We are using the Motul Kart Grandprix, except for the races offcause.
We run 40:1.

Gear oil you Can use any of the ones you have pictured, we use around 60-70ml and change it every 3-4 hours

3

thank you very much!!! it helps me a lot
I would also like to know, if possible, if to take the compression, is it ok!: Pedal at the bottom, switch to off, and start to increase the compression. And how I can bleed the radiator after adding new fluid. THANKS !