What fuel/oil ratio should I run

[ImpulseRocket]

What do you all run Lucas semi synthetic?

Seasoned veteran builders and riders of these MBs pretty much stick with 32:1...NOT 40:1...The oil is the lifeblood with these 2 cycle air cooled motors that are carrying itself and you under load.

We do NOT recommend less oil than a 32:1 mix...You need this oil protection for the motor.

 

[ismellnownlatters]

Cool I thought Lucas could do 40 to 1 .

 

[ismellnownlatters]

I'm sure 87 octane is ok with such a low compression ratio?

 

[noah9988]

I'm sure 87 octane is ok with such a low compression ratio?

Yep.

 

[ImpulseRocket]

I'm sure 87 octane is ok with such a low compression ratio?

Oh yeah, I run 87 on my Phantom. 2 Strokes, by their nature, are relatively low compression since the exhaust port remains open for a portion of the compression stroke. Their dynamic compression ratio is usually quite a bit lower than their practical figure because of this. Just make sure you use non-ethanol 87.

 

[Greg58]

I run the Lucas semi synthetic at 32/1, like I said earlier I have never had an oil related failure.

 

[ismellnownlatters]

Damn it is hard to find non ethanol around here. What happens if you use normal gas with ethanol?

 

[DAMIEN1307]

Damn it is hard to find non ethanol around here. What happens if you use normal gas with ethanol?

I didn't find it too difficult...lol.

Ethanol Free Gasoline in Gainesville, GA with Reviews

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Shell Ethanol Free Gasoline in Gainesville, GA with Reviews

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[ismellnownlatters]

We have one station near me but it's a old looking pump far away from there other pumps I think it mechanical display ? But I think to self maybe that gas is old since I never see anyone using that pump

 

[DAMIEN1307]

What happens if you use normal gas with ethanol?

Ethanol damages crank seals as well as carburetor components on 2 cycle motors.

You can read more about it in the links I have provided below.

Don't Run Ethanol in 2-Stroke Dirt Bikes! | Fix Your Dirt Bike

Ethanol is the simple solution to boost octane ratings at the pump at a lower cost. It is NOT designed for use in 2-stroke engines!

www.fixyourdirtbike.com

2 Stroke vs 4 Stroke: Avoid Ethanol In Small Engines

2 Stroke vs 4 Stroke: Avoid Ethanol In Small Engines Understanding the differences between 2 stroke vs 4 stroke engines can play an important role in...

knowhow.napaonline.com