My 81 1500 uses fuel like its going out of fashion. About 14mpg in old money round town driven pretty sedately.
She starts very rich on choke but settles down and runs well after that. Warm idle is a bit fast at about 1100rpm and is pretty sensitive the idle screw adjustment. You can often smell petrol after putting it in the garage. There are no fuel leaks - honest
Jetting is not per the book.
Primary main jet 1.15, air correction 180 and idle 0.47
Secondary main 1.35, air correction also 180 and idle 0.70
Emulsion tubes are F30s and the needle valve is a 1.75.
The larger air correction jets have been done to lean the mix out, even though it is running a foam high-flow air filter. I was running a 150 air correction on the secondary as per the book but the 180 seems better and I read that with the high-flow air filter you should increase main and air jets by 2 sizes anyhow (and I had them).
Float level and choke position and operation all check out.
Comments welcome
She starts very rich on choke but settles down and runs well after that. Warm idle is a bit fast at about 1100rpm and is pretty sensitive the idle screw adjustment. You can often smell petrol after putting it in the garage. There are no fuel leaks - honest
Jetting is not per the book.
Primary main jet 1.15, air correction 180 and idle 0.47
Secondary main 1.35, air correction also 180 and idle 0.70
Emulsion tubes are F30s and the needle valve is a 1.75.
The larger air correction jets have been done to lean the mix out, even though it is running a foam high-flow air filter. I was running a 150 air correction on the secondary as per the book but the 180 seems better and I read that with the high-flow air filter you should increase main and air jets by 2 sizes anyhow (and I had them).
Float level and choke position and operation all check out.
Comments welcome