2 stroke mix
Turbo Mini Forums

After a bit of advice

Both my outboards have labels on them suggesting 100:1, but theyre both about 20 years old, so Ive always used 50:1

They dont smoke all that much, but just wondering, is there a way of finding out what ratio would be ok without causing a meltdown?

I really dont want them to seize, but 2 stroke oil aint cheap...

If not ill just carry on using 50:1

Joe

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"

ive got a feeling my mini moto is 30 to 1 but dont hold me to that. ive lost the instructions. i just put a lid or two full in the 250ml tank. i never really measured it but i have a measuring bottle i think. just remember ill check that for you mate.

Just checked its says 25:1 or 30:1 hope this helps

Hi,
Manufacturers spec is what you go on usually, I don't think there's any way to calculate what is the correct ratio as there are so many variables:
Fuel quality / octane
Air temp
Engine temp
Humidity
Load ......
My 2 stroke toy uses Castrol superbike R2 at £12 a bottle with super unleaded 25:1.
But then even at a 2 day race meeting I probably only get through a fivers worth of fuel :)
Can you still get a 5 gallon barrel of 2 stroke oil, may work out a bit cheaper....
Cheers,
Gavin :)

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