I know there's some persons not in accord with the acetone theory...
I've used and also some people I know used it for long time with no problems. I've noticed the engine run smoother, better acceleration and better fuel mileage, both my Harley and the Kawa ZRX1200.
I didn't stop using, but sometimes I forget to use because makes me sick to have alway a small plastic bottle with acetone to add into the tank after every gas filling.
But I've found some people (expecially mechanics) use it for two different purposes:
1) clean the combustion chamber from carbons. Using acetone for some months.
2) reduce unburned HC in exhaust gases for a short period, just a pollution control and car revision.
In my country after the first 4 years of life (and every 2 years after the first control) a new car need a control to see efficiency of brakes, lights and exhaust emissions.
Using acetone you can drop from 10 up to 50% unburned Hydrocarbons and pass a pollution test.
It appens with ethyl alcol mixing.
The mixing is done only for a short time, just the pollution control.
About water, on Harleys and open airbox like Big Sucker, it appens during bike washing or driving under the rain that the filter become wet and some drops of water get sucked into the engine.
Nothing appens if only few drops of water get sucked.
But talking to some mechanics about this question, the olders of them told me about this trick, spry water into the carb was used for internal combustion chamber cleaning and other defects diagnosis.
Older techniques, now misused, but still known into that old techie not-written literature...
Last edited by Mechano; 03/19/2007 12:42 PM.
