Directory:Acetone:Rumbolt's 2-Stroke
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'Robin Rumbolt's Report of Directory:Acetone as a Fuel Additive Effect on Mileage and Performance in his 2-Stroke Paraglider'
Reports
Paraglider 2-stroke saw increased mileage, decreased oil leakage, lower build-up on spark plugs, increased power, no impact on gaskets.
Individual Reports
May 31, 2005
I am a powered paraglider pilot. I fly with an 80cc 2 cycle engine
which requires an oil/gas mixture. After trying acetone in my Toyota
Tacoma truck and seeing a 12% increase in mileage, I decided to try
acetone in my flying machine as well.
Before putting acetone in a system that has Tygon hoses and rubber in
the diaphram, I soaked several of the parts in pure acetone. They
swelled just slightly. I also put acetone in a small vial of fuel
mix and let it sit undisturbed for several weeks. I saw no
separation of the fuel/oil mix. Then I tried it in the engine
itself. I used a mixture of 9cc acetone per gallon of fuel mix.
This corresponds to 3oz/10 gal.
The first thing I noticed was an immediate increase in idle rpm by
1000rpm! I had to reset the idle screw.
I also noticed that the mixture screw had to be reset for max rpm.
I had to close it a bit.
I have now had a half dozen flights with acetone in the fuel.
Further, the fuel has been allowed to sit in the plastic tank for 3
weeks with no apparent degradation.
My paramotor typically uses about 1 gal of fuel per hour of flight.
Last night I flew for 0.9 hr and used only 1/2 gal of fuel! I have
also noticed a 1000rpm increase in max rpm while flying. This means
more power!
Usually after a flight, I have to wipe the oil off the prop. (The
unburned exhaust goes thru the prop.) I have seen a dramatic
decrease in oil on the prop, indicating better burning of the fuel.
The spark plug is showing a good brown coloring, and I have seen no
carbon buildup on the piston. Carbon buildup is typical of these
engines.
In short, I have found acetone to be beneficial in small 2 stroke
engines too!
Robin Rumbolt
Knoxville, TN
Contact
email: robinr{at}knology.net
See also
Directory:Acetone as a Fuel Additive - directory
Directory:Fuel Efficiency directory index at PESWiki
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