80's old school
New Member
- Local time
- 12:30 PM
- Joined
- Aug 2, 2011
- Messages
- 8
I posted in another post that my bike was running bad. It would idle fine, have no power off throttle until about 30 mph and then take off great. I determined that the carb was jetted too rich.
So I am doing a little experiment!!
I did a little "chemical jetting"!!! By that I mean I mixed up a concoction of about 75% E-85 and 25% gasoline and it runs perfect!! Now it takes off without peddling and actually squeaks a tight belt now!
Since it takes much more E-85 to run right, this basically did the same as jetting the carb down.
I may play with it a little and see how she does at 100% E-85. I think I will have to raise the needle a little and maybe idle her up since I feel the idle jetting will be too small. Right now I have the air bleed (idle mixture screw) completely closed and it idles perfect.
Gasoline is stoiciometric at 14.7 parts air and 1 part fuel. E-85 is stoiciometric at 10 parts air and 1 part fuel.
Interesting experiment.... I will keep you informed!
So I am doing a little experiment!!
I did a little "chemical jetting"!!! By that I mean I mixed up a concoction of about 75% E-85 and 25% gasoline and it runs perfect!! Now it takes off without peddling and actually squeaks a tight belt now!
Since it takes much more E-85 to run right, this basically did the same as jetting the carb down.
I may play with it a little and see how she does at 100% E-85. I think I will have to raise the needle a little and maybe idle her up since I feel the idle jetting will be too small. Right now I have the air bleed (idle mixture screw) completely closed and it idles perfect.
Gasoline is stoiciometric at 14.7 parts air and 1 part fuel. E-85 is stoiciometric at 10 parts air and 1 part fuel.
Interesting experiment.... I will keep you informed!