1974 merc 200 20 hp

[johnnycrab]

I just got a 1974 20 hp merc. ser#405 4017 I'm geting spark on one plug but not the other. wires and plugs ok, could it be the coil ? thanks John

 

[achris]

Re: 1974 merc 200 20 hp

Could be the coil or the switchbox. As this engine has 2 coils, swap them and see what happens....

Chris.....

 

[johnnycrab]

Re: 1974 merc 200 20 hp

thanks chris, switched coils both are good, must be switchbox. thanks again !

 

[johnnycrab]

Re: 1974 merc 200 20 hp

Thanks Chris, switched coils, both are good,I'll try a new switchbox. thanks again for your info. John