I have a 2008 Yamaha F40BTLR outboard. I recently could not start the engine and statrted troubleshooting. I went throught the entire ignition system and besides no spark I could only find one problem problem which was with the stator. I made the following measurements on the stator.
1) Charging coil voltage UNLOADED, 290 VDC, spec is 200 VDC, GOOD
2) Charging coil resistance 675 OHMS, spec is 660-710 OMHS, GOOD
3) Charging coil voltage LOADED, 52 VDC, spec is 190 VDC, BAD
I can't find any problems in my wiring or grounds and have tried a different CDI with the same results.
Knowing little about stators, my question is are the measurements showing a bad stator. I would have expected the UNLOADED voltage or especially the resistance to bad if the LOADED volatage is bad.
Any thoughts would be appreciated!!!
1) Charging coil voltage UNLOADED, 290 VDC, spec is 200 VDC, GOOD
2) Charging coil resistance 675 OHMS, spec is 660-710 OMHS, GOOD
3) Charging coil voltage LOADED, 52 VDC, spec is 190 VDC, BAD
I can't find any problems in my wiring or grounds and have tried a different CDI with the same results.
Knowing little about stators, my question is are the measurements showing a bad stator. I would have expected the UNLOADED voltage or especially the resistance to bad if the LOADED volatage is bad.
Any thoughts would be appreciated!!!