Fuel Mixture Gas/Oil Ratio in liters

[Jeco]

Good day to all,

I am one of the 49cc HT noobs here. I am a bit confused regarding gas/oil ratio in Liters. I've searched this site and can't seem to find exact answer. Yes, I am bad at math, sorry for that.

I've read some post regarding on this but they are in "gallons".

On the manual that came with the engine kit says 16:1 on break in and 20:1 after, is this equal to 1000ml(1 liter) gas : 16ml oil ?

I also got confused on some thread post having 50:1 ratios.

Your reply will be much appreciated.

Jeco

 

[SimpleSimon]

Good day to all,

I am one of the 49cc HT noobs here. I am a bit confused regarding gas/oil ratio in Liters. I've searched this site and can't seem to find exact answer. Yes, I am bad at math, sorry for that.

I've read some post regarding on this but they are in "gallons".

On the manual that came with the engine kit says 16:1 on break in and 20:1 after, is this equal to 1000ml(1 liter) gas : 16ml oil ?

I also got confused on some thread post having 50:1 ratios.

Your reply will be much appreciated.

Jeco

No, rather it is 1000/16 = 62.5 ml of oil.

For every 16ml of gas, one ml of oil. Likewise, once broken in the ratio is 20:1, or 50 ml of oil per liter of gas.

 

[Jeco]

Thank you SimpleSimon,

Oh my, I am killing my engine then. The engine kit vendor told me that for 1 liter of gas add, 16ml of oil. And I am on my 3rd tank of gas now.

I'm wondering how my engine is holding up.

 

[SimpleSimon]

Thank you SimpleSimon,

Oh my, I am killing my engine then. The engine kit vendor told me that for 1 liter of gas add, 16ml of oil. And I am on my 3rd tank of gas now.

I'm wondering how my engine is holding up.

Drain the tank and carb, immediately. I'd fill the tank with a 16:1 ration immediately, pull the spark plug wire, get the rear wheel off the ground and crank the engine through a several revolutions by hand, before putting the plug wire back on and starting it.


You need the oil in the mix NOW - it is what lubricates all the crank bearings and cylinder walls. At 16 ml of oil to 1 liter of gas you are running a 62.5:1 ratio. Really not good.

 

[Jeco]

Thank you again,

I will do this first thing tomorrow. Can I add a bit of oil through spark plug hole? Just to make sure it gets lubricated enough?

I just hope my engine will still be fine after this error.

 

[RedBaronX]

here is a ratio calculator that does both metric and Imperial

Gas:Oil ratio calculator

 

[Jeco]

Thank you RedBaronX!

 

[RedBaronX]

I've posted it a couple times because it's so handy, easy, and so very important!

 

[RedBaronX]

as for putting some oil directly into the cylinder, the directions I got said to do that... it didn't give a measurement for how much, it just said "a small cap full". They recommend specifically to remove the cylinder head so that you can push down the piston before pouring in some oil because it needs to flow into the side ports (as opposed to the muffler)

 

[Jeco]

^ the calculator is sure helpful.

I see what you mean on removing the head before pouring oil.

I am glad that my engine did not blew up or something while on the road for lacking oil. That would be tragic.