Little Ray
03-14-2011, 01:07 PM
Hello everyone,
I'm new to this forum, but have been reading threads for years. I have a 1989 Hydra-sport with a 1989 Yamaha 150 Pro V. I've been racking my brains trying to figure out what is causing my problems. I do not have any spark at all coming from 1,3,&5 cylinders on the right side. Left cylinders have strong spark. My plugs on the right side are soaked in fuel where my left ones are dry. I have swapped my coil packs with the left and they all seem to work fine. Spark plugs are all new. Now, if I disconnect the wiring from the coil packs and plug them into the other side cylinders, then the right side cylinders fire, but the left cylinders are dead. When I can get it to crank, it takes alot of choke and fast idle, but runs really rough. The engine will stay running at high idle, but as soon as you chop it back to slow idle, it dies. I have checked all of the wiring around the CDI unit. I'm leaning more toward my issues coming from one of the coils under the flywheel. My question is which coil? Lighting Coil, Charge-Coil, or Pulser-Coil? All fuel lines, filters, and bulb have been replaced. Same problem even with an external fuel tank, so I'm 99.9% certain that my problem is electrical, not fuel related. Any help would be greatful as I do not want to take it to another marine shop.
Semper Fi,
I'm new to this forum, but have been reading threads for years. I have a 1989 Hydra-sport with a 1989 Yamaha 150 Pro V. I've been racking my brains trying to figure out what is causing my problems. I do not have any spark at all coming from 1,3,&5 cylinders on the right side. Left cylinders have strong spark. My plugs on the right side are soaked in fuel where my left ones are dry. I have swapped my coil packs with the left and they all seem to work fine. Spark plugs are all new. Now, if I disconnect the wiring from the coil packs and plug them into the other side cylinders, then the right side cylinders fire, but the left cylinders are dead. When I can get it to crank, it takes alot of choke and fast idle, but runs really rough. The engine will stay running at high idle, but as soon as you chop it back to slow idle, it dies. I have checked all of the wiring around the CDI unit. I'm leaning more toward my issues coming from one of the coils under the flywheel. My question is which coil? Lighting Coil, Charge-Coil, or Pulser-Coil? All fuel lines, filters, and bulb have been replaced. Same problem even with an external fuel tank, so I'm 99.9% certain that my problem is electrical, not fuel related. Any help would be greatful as I do not want to take it to another marine shop.
Semper Fi,