Modern Vespa

79 vespa 100 says "use 2% gas mixture...how do you ratio that?

Welcome, we like pics?

1:50

You're welcome.

I remember being in high school and suffering tremendous anxiety when attempting to "learn" about ratios.

Many years later, after owning my first Vespa and a small plastic cup with lines and numbers on it, there was an enlightenment, a dropping of the penny.

If one is unfortunate enough to be a living in the USA, then you have to convert the gallons to liters which are marked on the cup. 🤪
I live in a metric country so I feel ok with the process.

Remember that modern gasoline is not like that of many years ago, there are additives that dissolve too much the oil used to make the mixture; therefore it must be taken into consideration if the cylinder is well lubricated. In fact, on the market there are additives to be added to petrol if it is used by vintage vehicles.

Just mix at the 40:1 ratio on the chart Ape provided and use Non Ethanol gasoline if you can, you should be just fine.

Like so:

Sheeeeeit. I didn't even realize it has US gallons on the left. I've been using the same cup for years and just noticed it because I always focused on the liters on the right.

This cup makes it pretty much fool proof.

My only gripe with the cup is they could have added lines for 3/4 gallon. But it really is that easy.

If you want to measure for 3/4 gallon, just turn the cup upside down and fill it up to the 1/4 gallon mark.

I use this for every day...

i tried the SIP bottle for while, but found it annoying. gone back to bottle and jug - old school....

That would have the potential to be mixed up as a cycling water bottle in the Ape household, very danger

i now use it for stella artois lol

I have an old bottle of fuel stabilizer that has a measuring cup integrated into the bottle that I use. Works great, you just squeeze half ounce sizes and count them out when you add fuel.

Don't forget that these cups include both imperial and US gallons, so you have to make sure you're using the right one.

I use 3 oz travel size bottles and mark them with lines for 1/2 gal and 1 gal. I can refill them with oil without having to measure and just dump a whole bottle in when stopping for gas (smallframe tank holds 1 gal)

Ahh how I love living in a metric country.

Go metric, no confusion over US v Imperial v ' is there an R in the month?' gallon...

It's not hard at all. You just have to add 1-11/16th amount of oil to your gas tank when it's 4/5th full. It's simple math right there. So easy an abacus can do it.

A graduated container with double measuring scale is sufficient as those previously posted; i also use it for the brush cutter and to make doses of herbicide ... ooops ... (also a small glass, much small, of glyphosate in 12 liters of water). For the home garden, not for the actinidia ...

A farmer has a basket of eggs and goes to sell them at the market.
The first customer arrives and takes half the contents of the basket plus half an egg, pays and leaves.
The second customer arrives and takes half the content left over half an egg, pays and leaves.
The third arrives and takes half of the remaining half-egg, pays and leaves.
The farmer returns home happy because he has sold all the eggs.
How many eggs were initially in the basket?

50% is too easy a fraction.
Ask again using 11/16...

Ahh how I love having oil injection

All of them..All 7 of them

All right! Examination done, you can make the mixture.