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Starts and idles fine, but have had a sudden loss of power.
Last season, it ran great until the last run, when the power loss occured. This season, it started out the same, but midway through the first run, full power resumed. Stayed this way the next time out until just before returning to the dock, when the power loss returned. Has stayed that way since.
Doesn't seem to miss, but there is just no power. A little vibration at low end, but as it builds speed, the vibration goes away. It tops out at about 3/4 speed (4500 rpm).
Am relatively convinced that it is not the fuel pumps (replaced last summer), fuel filters, or the carbs because it went from poor to great and back to poor. Is it the CDI module (is this 'limp' mode)? In process of trying to check it now. Any tips on what to check and how? Other possible causes?
Many thanks.
Last season, it ran great until the last run, when the power loss occured. This season, it started out the same, but midway through the first run, full power resumed. Stayed this way the next time out until just before returning to the dock, when the power loss returned. Has stayed that way since.
Doesn't seem to miss, but there is just no power. A little vibration at low end, but as it builds speed, the vibration goes away. It tops out at about 3/4 speed (4500 rpm).
Am relatively convinced that it is not the fuel pumps (replaced last summer), fuel filters, or the carbs because it went from poor to great and back to poor. Is it the CDI module (is this 'limp' mode)? In process of trying to check it now. Any tips on what to check and how? Other possible causes?
Many thanks.