Here is a chart for the Canucks. If someone in the US could figure out something similiar, post it too.

Great idea!I've always had to figure out ratios for small quantities,for chain saws,weed whackers,etc. That's one pain-in-the-a$$ job I won't have to do anymore.Thanx,revrnd

I'm glad you asked that mixing question Troy. I was just thinking the other day about it and thinking of posting a "how to" on mixing ratios because not everybody knows how to do it, and I've actually seen people guess at how much oil to add.

If you have a ratio of any kind, say 100:1 or 20:1 all this is interpreted as 100 gallons of gas to 1 gallon of oil, or 20 gallons of gas to 1 gallon of oil. since nobody here will probably get to add 1 gallon of oil to a snowmobile tank of 20 gallons of gas, that ratio then gets split into ounces to make it simpler. In this case, 100:1 ounces or 20:1 ounces. Here's how it works:

1 gallon of gas contains 128 ounces. Now if you have 10 gallons of gas and you are trying to mix it 50:1, multiply 10x128 which will give you 1280 ounces. Now to figure out how much oil to mix just divide 1280 by your ratio number of 50. This would give you a number of 25.6. In this case, you would have to add 25.6 ounces of oil to your fuel to get it mixed right.

Here's another example:

You just stopped at the gas station and you topped off your tank of gas but it only took 6.7 gallons of gas. You need to mix it 25:1. Take 6.7 multiply it by 128 which will give you 857.6 ounces. Now divide 857.6 ounces of gas by 25 and you should get 34.3 ounces. So, 34.3 ounces of oil is what you would add to your tank that already had some premix in it.

I hope this helps, and if I am wrong here, somebody correct me before something blows up :hallo1:

ttt

All my sleds (11) are premix except one. I have 3 of these bottles. Two of them are in sleds and the other is in the shop. It mixes any ratio (gal or Liters). It's great for sleds. Pull up fill up sled, see how many gallons or liters it took. Find the ratio and fill to the line. For 40:1 it goes to 6 gals, so anything over 6 you would have to fill to the lines twice. Oh, fogot there only $3.75 (US funds)


Here's the link to it Quick 2 Mix (http://www.maximausa.com/products/misc/mixbottle.asp)


http://www.maximausa.com/products/misc/images/large/Quick2Mix.jpg

Ratio-rite. Plastic measuring cup with ratio lines. Probably about ten bucks now but very convenuient. Not sure if they make imperial ones though.

North of the border there is 160 oz. in a gallon, so Snow-drift's formulas won't work here. This is another area where the Metric System makes things a whole lot easier. :)

Originally posted by 94ZR580@Sep 12 2003, 12:07 PM
North of the border there is 160 oz. in a gallon, so Snow-drift's formulas won't work here. This is another area where the Metric System makes things a whole lot easier. :)
All you are doing is matching ounce for ounces, so if you can convert, it's not hard, and it can be done.


Alright, how about I just give you "Canuckians" an example.

You stop off to top off your sled and it ends up taking 13.6 liters (I'm assuming you guys buy gas by the liter, last I was up there anyway). You have a mixing ratio of 25:1. Again, 25 ounces of gas to 1 ounce of oil, or 25 liters of gas to 1 liter of oil. Now, a liter has 33.8 ounces correct? All you do is multiply 33.8 ounces times your 13.6 liters which would give you 459.7 ounces. Now take your ratio number of 25 (in this case) and divide it into your 459.7 ounces. This would give you 13.6 ounces. 13.6 is how much oil you would add.

Does this make since? All you are doing is dividing the number of ounces of gas you have by your ratio. Quite simple really.

By the way, is there really such a thing as a Canadian gallon? I've never heard of such a thing.

i printed that out, great help. Thanks revrnd :thumbsup:

Canadian gallon, or Imperial gallon, which is ~ 4.55 l. U.S. gallon ~ 3.79 l. The Imperial gallon is about 20% larger than the U.S. gallon. Well, now you've heard it all, eh? :D

Most of the time numbers are the same difference, so it really makes it here, nor there. 25:1 is 40ml of oil to 1 l of gas (1000 / 25), so in your example all you would do is multiply 13.6 by 40 to get 544 ml of oil. 50:1 is 20ml oil to every l of gas, so it makes for easy math for those of us less quick than others. :thumbsup:

Wow, now I remember why I hated math in high school LMAO. I'm glad I have oil injection!!!!! The only thing I premix before use is my coffee....lol :p

I'm going to have to bring my calculator in my tank bag from now on. ;)

FishHog

Questions are being posted as to how much oil my machine should be using. A ballpark gas oil ratio should be 50:1 Here's how to properly determine the ratio at which your sled's oil pump is injecting oil into the motor:

Top up your gas tank & fill your oil jug to the fill line. Go on a decent ride of a hundred miles or so. Top up the gas tank @ a pump, write down how much gas it took to fill the sled. Fill the oil reservoir to the full line with a graduated container like a RatioRite and write down how much oil it took.

DETERMINING GAS OIL RATIO

In the US do the following, multiply the gallons it took to fill the tank by 128 (the number of ounces in a US gallon) and then divide by the number of ounces of oil you added to bring the oil level back to the full line.

In Canada, using the metric system, it's slightly easier. Divide the number of liters it took to fill the tank by the number of liters it took to fill the oil reservoir back to the full line.

(miles driven doesn't enter into the calculations unless you're figuring gas mileage)

If you're come up with a ratio smaller than 50:1 (35:1 for example), your pump setting is rich.

If the ratio is larger than 50:1 (70:1 for example), your pump setting is lean.

In either case have a competent person or dealer adjust your oil pump cable accordingly.

I'm going to have to bring my calculator in my tank bag from now on.
Make sure it isn't an expensive calculator, I'd hate to see it freeze up, and then you run too lean because you did the mental math wrong.

I had my TI-83+ graphing calculator freeze and burst this winter.... left it in my bookbag not thinking anything would harm it....it was -10*F that night.

Originally posted by Snow-Drift@Sep 12 2003, 01:42 AM


1 gallon of gas contains 128 ounces. Now if you have 10 gallons of gas and you are trying to mix it 50:1, multiply 10x128 which will give you 1280 ounces. Now to figure out how much oil to mix just divide 1280 by your ratio number of 50. This would give you a number of 25.6. In this case, you would have to add 25.6 ounces of oil to your fuel to get it mixed right.

Here's another example:

You just stopped at the gas station and you topped off your tank of gas but it only took 6.7 gallons of gas. You need to mix it 25:1. Take 6.7 multiply it by 128 which will give you 857.6 ounces. Now divide 857.6 ounces of gas by 25 and you should get 34.3 ounces. So, 34.3 ounces of oil is what you would add to your tank that already had some premix in it.


No there's an argument for the metric system if even I've seen one. :p

I'm working on a US version & will post it when it's finished.