ORIGINAL: Rcpilet
ORIGINAL: RCIGN1
You will find that "factory" settings are almost always way rich...
"factory" settings are the cause of most engine running problems...
You can't harm an engine setting the carb on the ground..
The high should be set for MAX rpm, then backed off until the engine just starts to slow down..
The low needle should be just richer than the point where transition is good...
We do this same topic over and over, look back through the posts..
Manufacturers are doing new owners a great disservice by not publishing carb setting instructions..
Maybe it's a CYA thing, let the owners fly around using up about 5 gallons of fuel with a plane that staggers all over the sky, then in desperation gets some help with the carb...
Agreed
I still shake my head every time I see someone post on here that they are running the carb at "factory settings".
Why on earth would you take a brand new $500---$1500 engine out of the box, mount it on your plane
(your $1500--$5000 plane) and fly the plane without adjusting the carb?
Factory setitngs don't mean diddly squat, unless you just happen to be at the exact same barametric pressure, altitude, humidity, and temperature as the guy who test fired the engine at the factory.
Do any of the factories actually adjust the engine? I'll bet money that if they even fire the engine-----all they do is fire it to make sure it runs, then toss it in the box. Probably don't even run it for 30 seconds. I seriously doubt that they ever touch the carb or adjust it for proper running.
You have nothing to loose by adjusting your carb--and everything to loose by running it stupid rich and low on power while mounted to your expensive airplane. Overly rich engines are the subject of much unhappiness in this hobby. Overly rich leads to gummed up rings, build up of carbon in the combustion chamber, fouled plugs, and on and on and on...............
Adjust your carbs people. [sm=thumbup.gif]