strokers

[barker]

just aquired a old 2 stroke engine,how many cc of 2stroke oil do i add to a pint of petrol

[barker]

for got to say at 40 to 1

[125erCrazy]

If my math is correct let someone else confirm it though

*A pint is 568 cubic centimetres* so divide by 40 should be 14cc

Again my maths aint the best so before going ahead let the brains answer

[knapdog]

Around about 3 teaspoons.

[spikeyboy60]

40:1 is 25cc of oil to 1 litre of petrol
Sorry,don't subscribe to ' non metric '

[knapdog]

40:1 is 25cc of oil to 1 litre of petrol
Sorry,don't subscribe to ' non metric '

Around about 5 teaspoons.
I use the one I stir the mother in law's tea with.

[Devon general andy]

you can buy a petrol / oil mixing bottle on amazon for £6. Has the different ratios on side ( 50:1 40:1 etc. )
You just fill with petrol to the line then add 2 stroke oil up to the line that corresponds to the ratio that you need. A good shake and pour in. Do several times to fill a bike tank!
When I had 2 strokes, I found this the most safe and reliable method to avoid potential disaster problems. Hope this helps, cheers andy.

[barker]

as petrol will not keep these days, i only need 0ne pint at a time so the plan ,put 14cc of oil in tank then top up with petrol

thanks all you mathematicians

[Bern]

i only need 0ne pint at a time so the plan ,put 14cc of oil in tank then top up with petrol

A word to the wise, if you put the oil in first make sure the fuel tap is turned off & give the bike a good shake to mix the petrol before turning it back on, otherwise the oil will sink to the bottom & fill the float chamber a few hundred yards down the road, guess how I know

[JOHNBOY]

5000 ml in 5 litres petrol at 50 to one 50 divide by 5000 equals 100 ml and so on