BOAT DOCTOR
Petty Officer 2nd Class
- Joined
- Jun 3, 2009
- Messages
- 120
I have a 06 90 merc.Just rebuilt motor ran it for the first time today notice that the #1 spark plug wire had weak spark.pulled off that spark plug cap and held wire to the plug and can see spark but does shoot spark to the plug like #2 &3.clean cabs didnt help.any heip please