Saito 180 cannot richen high speed mixture?
THe Saito 180 runs the best (at 4-5 turns out "RICH") until it is fully broke in. BUT... you should be able to open the needle and get it dog rich! Yes the pump may be on the lean side, or you are using small or medium fuel tubing. If the low end is too lean then it would'nt run. You should still be able to richen the hi end to the point where it dies. I'm in the process of breaking in 2 180's and both are being different animals. So each needs its own attention.