I have a 97 Johnson 150 Faststrike. I ran the motor for about an hour then shut it down. When I started it, the motor vibrated badly. I shutdown the motor then started it back up and the RPM ramped up to 2500 RPM. I checked the plug wires and they seemed normal. After about 15 minutes of starting the motor with excessive vibrations and the RPM ramping to 2500 it ran fine. Has anybody seen this happen? If so what parts did you replace.<br /><br />Thanks
