1975 mercury 50hp 4 cyl....sparks problem...???

[phil_26]

just bought a boat whit a 1976 mercury 50hp 4 cyl.....and it only sparks on the #3 piston and wont start.....wondering if its the trigger,the stator or the switch???

 

[Laddies]

Re: 1975 mercury 50hp 4 cyl....sparks problem...???

Probably cap or rotor clean them. here's a ignition test