bmac
Well-Known Member
- Jan 11, 2008
- 1,845
- Boat Info
- 2006 58 Sedan Bridge, Walker Bay Generation 390 RIB w/40hp Yamaha, 2014 Wellcraft 232 CC w/Yamaha
- Engines
- MAN 900 CRM
I'm away on a trip with firends that have a 2004 340DA with the 8.1L Horizon engines. He's having a problem with the port engine knocking and wants to replace sparkplugs. He's bought the OEM spec'd platinum tip plugs but doesn't have his service manual with him. Anyone know what the plug gaps should be set at?