Coil Fried ???

[KyLer_]

I've got an 88' Mercruiser 120hp .....changed the plugs the other day....ran great in the yard....launched it yesterday and had a hard time starting it...when it finally started it ran for about a minute and stalled.....tried in vane but it would'nt restart.....even starting fluid would'nt do the trick...the coil was hot as hell and the only spark I got was very small and yellow..... got any ideas ?

 

[McKenzie]

Re: Coil Fried ???

get a new coil. Afterwards, check the voltage at the coil, if the ballast resistor is not dropping the voltage, it will fry coils. You should have 8-9v

 

[hondon]

Re: Coil Fried ???

Remember, that resistor is in the main harness of this engine and not visible externally.It is there.

 

[KiLer]

Re: Coil Fried ???

Thanx...I changed the coil,points,condensor,rotor and wires to boot....started right up....would love to change that resister since I've don't a complete tune-up on the darn thing all ready...what am I looking for in the Harness ?<br /><br />P.S. <br /> Thanx for the replies....this BB is a great resource for info and always quite helpful