I have a 9.9 rude model e10rcra ser#c7174695. Seems to have a weak spark. Tested the charge coil and sensor as per "No spark " post earlier. I have 496 Ohms on the charge coil and 39 Ohms on the sensor. I did compare the two coils and got 246 Ohms from secondary to ground and 001 Ohms accros primary. 2nd coil- 243 and 003. Any suggestions out there? Can i use the carb off a 15 hp. same year on this? jets? Thanks guys