Crankcase oil, gas needs to be premixed
You have a problem with your carburator. Have it looked at
I found the best mix for Banshee's is 32/1 use good race oil though or you will fight the plugs .....
mix 32 to 1 five times and it equals enough for five gallons
for every 9.2 litters of gas add 16 ml of 2 stroke premix oil wich is 32-1
4 gallons
the kind at the pump, liquid perhaps...
If its an oil injected motor there is a tank that holds the mixing oil if its just a straight carburated motor the oil mixes with the gas in a can then put it in the gas tank.
If the carburetor is cleaned on the Yamaha Bruin 350 and it will idle but stall when given gas, it could be that the float is sticking. The carburetor may also need to be adjusted by turning the adjustment screw so that it is not getting too much gas when revved.
40/1
Yes. 50:1 ratio. I have two Yamaha's and prefer Yamalube. I know several owners with waverunners that are several years old and they have disengaged the oiler and put in premixed gas.
4oz of premix oil for each gallon of gas so for 5 gallons of gasoline you need 20oz of premix oil