rbort
Elite Veteran
Location: Franklin, MA - U.S.A.
My Posts This: Topic Forum | You're barking up the wrong tree...#1, the engine will start and run with the high speed needle CLOSED.
So, with the high speed needle open only 1/2 a turn, its going to lean out and stumble once you go past 1/2 throttle.
#2, if its burbly rich that's all from the low needle. The high needle is for full power and I bet you at 1/2 turn open if you try to climb full power its going to bog down and choke due to low fuel.
#3, don't mess around with the carb metering. That should be a last resort thing and in most cases its not the issue and people start fiddling with stuff that was ok in the first place due to too much information and not enough knowledge of how to apply it all.
Try to close the low needle a little bit and open the high needle to 1 3/8. Now that you fiddled with the metering of the carb not sure how exactly its going to run with needles as they may not be standard any more.
In any case, if you lean the low end it shouldn't go less than 1 1/4.
The high end range is 1 3/8 to 1 5/8. Low end is 1 1/4 to 1 3/8.
Running at 140C seems really hot. That is like 284F. You need to bring it down to below 130C to enter the safe zone and it could be as low as 100C in cold weather. Ideally in summer try to shoot for 120 to 125C on the carb side hottest part you can find on the cylinder. Remember those numbers come from my temp guage, so yours might read a little different.
-=>Raja.
1005 Gasser, G26 3DMax++, 2205+ flights
Spectra-g, G26 3DMax, 865+ flights |
