beckoning
Petty Officer 2nd Class
- Joined
- Dec 15, 2010
- Messages
- 161
My 2010 Merc 9.9 4cycle kicker seems to run fine for 15 minutes, then seems to load up and start running on one cylinder. If I rev it up for a few minutes, it finally clears and runs smoothly. Could it be a bad plug, maybe water in the gas? Don't know if it has carb(s) or EFI. If carbs, can I drain the bowls?