Re: yamaha 225, rough idle, hesitates on acceleration
if ya replace enough you may find it, however its so much easier to troubleshoot it, cheaper too.<br /> how did ya set the voltage on the new TPS ?<br />at starting the enrichment jets will dribble fuel into the carbs, thats how it cold starts,accelerates, power enrichment for knock detected and decell.<br /> there is a lot of things going on in that motor, never heard of replacing the plug wires on one as they are or were sealed to the coil, the caps are replacable but if they test good why replace them ?<br />this aint a truck, it will pop a piston in a heartbeat if all subsytems are not perfect, close may work on detroits and cummins but not on a V76. its a very high performance machine that is very durable as long as everything is inside its desighn paremeters, does not take much degradation of fuel,ign or cooling and a piston smokes.<br />a stuck open T-stat can lean out #6 and smoke it.<br /> study your service manual.