Post by GrumpyUnk on Mar 21, 2018 20:49:52 GMT -5
Moving the needle up will enrich the mixture. The needle when moved up will get a 'head start' on getting to the thin end, so it will have more area open between the needle and surround. More area will allow more fuel emulsion to flow at a given height of the vacuum operated piston, and thus the needle being moved up makes it so.
There's not enough on the plugs to form an opinion, but they are NOT overfed fuel so far as there's about zero carbon deposit. I'd take a longer run with a bit of varied speeds and operation before trying to judge.
Most times you want a little bit of deposit, but not gooey or fluffy carbon, though the fluff can form and dissipate as it is mostly a 'choke' thing that will burn off in short time.
tom
There's not enough on the plugs to form an opinion, but they are NOT overfed fuel so far as there's about zero carbon deposit. I'd take a longer run with a bit of varied speeds and operation before trying to judge.
Most times you want a little bit of deposit, but not gooey or fluffy carbon, though the fluff can form and dissipate as it is mostly a 'choke' thing that will burn off in short time.
tom