Yamaha Outboard Troubleshooting Guide
Mar 30, 2017 - A faulty ignition switch can cause all sorts of problems with your. Of material is the CDI Electronics Troubleshooting Guide, click here for pages. The following is supplied by BPS as a brief reference guide only. BPS assumes no liability for loss, damages, or incorrect diagnoses resulting from usage of this information. There is a golden rule to any gasoline powered motor whether 2 stroke or 4 stroke.
Yamaha Outboard Motor Troubleshooting Guide
Squeeze the fuel primer bulb while the motor is running. If the motor runs rough when operating a high speeds, and if the motor smooths out when you squeeze the bulb, replace the fuel filters, clean out the fuel lines and repeat the test. If the results are the same, replace the fuel pump; if not, continue your boating activity. Operate your motor across the full range of speeds without shutting it down. If the motor operates properly for several hours at high speeds and low speeds without faltering, the fuel lines or the fuel filters were the problem.
Yamaha Outboard Troubleshooting Guide
If, however, the motor begins to stumble, particularly at high speeds, take note of the tachometer and any fluctuations in the motor speed.