Can't get bike over 23MPH

[rusty.western.flyer]

Here's the fuel stations that carry 100% gas at all pumps. All but one are marinas, the one out West is for agriculture (DelRay to Miami is a +1hr drive):

 

[Chainlube]

Then why is the 100% gas in my town got 87 on it? Also, there's a station in Oak Ridge that sells 100% gas at 3 octane levels: 87,89,93. They also sell all three octane levels with ethanol added.

Are you saying where you live the 100% is a 90-octane rating? All they sell in my town is 87.

If they claim to E-free fuel, I'd be inclined to verify that with the water test.

 

[Emcee]

Not only will you do NO harm, It is actually better for these China Girl 2 stroke motors to use lower octane as high octane levels, by US standards used to figure octane ratings, is NOT required unless you have a high compression motor which you do not have.

I actually have only 87 octane ethanol free available to me here in Alamogordo, NM. However the octane rating of gas is different in most of the world than it is here in the US when we recommend octane grades of gas.

Just so you know, when the Chinese builders give you a recommended octane rating to use, just like centimeters, (80cc actually being 66cc in the USA), their gas octane levels are of a difference from ours as well...Many people, even most here in the forums, are not aware of a difference in octane rating numbers in most of the world versus the octane number system used here in the USA.

There are two different ways to measure octane rating — Research Octane Number (RON) and Motor Octane Number (MON). The Motor Octane Number, being measured under more stringent conditions, is almost always lower than the RON. The US uses something called the Anti-Knock Index (AKI), which is just the arithmetic mean of the RON and the MON, whereas almost everyone else uses just the RON.

If China says use 93 octane, (they are using the RON measuring standard), it is actually 85 to 86 octane by USA standards using the AKI method, (R+M/2) as it is marked on the gas pumps here in the US.

There is a 7 to 8 point difference between the numbers used by China and many other places in the world including Europe vs the number value used here in the USA to rate the octane content/capacity of gasoline.

Thanks for the information man, I copied and pasted it into my email for safe keeping. Sounds to me I would be better off using 87 ethanol free. It would only be necessary to use 91 or 93 Ethanol free if I had a high compression engine?

Yea, did you revisit your flower nut?

I'm not being funny because I genuinely don't know but the flower nut could affect my RPMs and speed? Also when I revisit the flower nut tomorrow (because my tacometer comes then) what exactly would I be doing and why?

Thanks again guys

 

[Sidewinder Jerry]

If they claim to E-free fuel, I'd be inclined to verify that with the water test.

Got another station in my town independent foreign owned claims 100% gas but looks like oil and vinegar dressing lol

 

[DAMIEN1307]

I genuinely don't know but the flower nut could affect my RPMs and speed?

Yes it could if it is not adjusted tight enough or even if it is too tight...It WILL have an effect on how it runs.

 

[Chainlube]

Got another station in my town independent foreign owned claims 100% gas but looks like oil and vinegar dressing lol

So, you're just taking their word for it?

 

[Chainlube]

I'm not being funny because I genuinely don't know but the flower nut could affect my RPMs and speed? Also when I revisit the flower nut tomorrow (because my tacometer comes then) what exactly would I be doing and why?

Thanks again guys

Take the right side cover off, pull and lock your clutch lever, remove tiny screw holding the center nut in place, turn the center nut (flower nut) until it touches the pads, then back it off to put the tiny screw back in.

 

[rusty.western.flyer]

Thanks for the information man, I copied and pasted it into my email for safe keeping. Sounds to me I would be better off using 87 ethanol free. It would only be necessary to use 91 or 93 Ethanol free if I had a high compression engine?

Someone else might chime in, but the stock engine is like 6 or 7:1 compression, so no need for high test. I run the cheapest fuel I can, but also ride often enough that ethanol hasn't been an issue for me. Heck, I use whatever in my home generator we've had since hurricane Wilma. I lest it run out of fuel completely before putting it away. Every summer it gets a cup of fuel, starts half way through the first pull, then let it run out again. The bowl is still really clean.

Fun note: You get more mileage from 100% gas. Ethanol takes 30% more AFR to meet stoich. So, if you jetted for 100% gas, then put ethanol, you will be running slightly lean.

 

[DAMIEN1307]

Take the right side cover off, pull and lock your clutch lever, remove tiny screw holding the center nut in place, turn the center nut (flower nut) until it touches the pads, then back it off to put the tiny screw back in.

I genuinely don't know but the flower nut could affect my RPMs and speed?

Just so you understand it correctly from what Chainlube just wrote...

When adjusting the flower nut on the clutch, make sure that you have the clutch lever pulled in and locked in place.

Tighten the flower nut until you can't turn the back wheel at all, from there, turn the nut counter clockwise a "notch" at a time until you get the wheel to turn freely by hand and stop right there and put the lock screw back in place at that notch where the wheel turns freely.

When you release the lever it should of course be totally locked up and at this point you should have all the slippage or overtightness totally out of it.

 

[Sidewinder Jerry]

So, you're just taking their word for it?

The Station is called Big E on Gateway Ave in Rockwood, TN. The 100% gas they sell at the Shell station doesn't look like salad dressing. Been using the 100% gas from the Shell station for a year now and haven't had to clean any carburetors on my bike or lawn equipment since they started selling it a year ago.

Once put some Big E 100,% gas in my bike and it wouldn't crank at all. Had to go to other stations and use ethanol-added 87 gas. This caused me to have to clean my carburetors every 3 months or so. I'm glad there's a station in my town selling legit 100% gas now.