Fixed a nice Toyota Corona. Owner was disappointed with 3000 rpm idle. The problem was caused by improperly installed and broken accelerator pump rod and missing 12 volts on idle jet relay. Also the float chamber was full of dirt
Worked with 1982 Mitsubishi Galant. Owner was disappointed with bad cold start and poor dynamics. I've found worn out points, improper dwell angle, retarded ignition timing, clogged jets and missing secondary throttle plate limiter, which caused the secondary to stuck. It's interesting that the middle part of that Mikuni carburetor is made of plastic and has small nuts under each mounting point!