YAMAHA OUTBOARD MOTOR REPAIR FORUM NO FURTHER A MYSTERY

A TCI microcomputer ignition adjusts timing to maintain best engine effectiveness, overall economy, and power under all running situations.Yamaha provides a full model lineup in four stroke engines from 450ps to two.5ps that provide superb fuel economic system and cleaner emissions. Outboards of 20ps and higher are Outfitted with high-overall perfo