Well I decided to take the cover off my 2006 225 PRO XS. WOW!! Nothing like my old EFI. What specific tools would a guy need to change the plugs himself. Looks like a real pain in the butt. If I decided to have the dealer go ahead and change plugs and give it a 100 hour service what would I expect to pay.

The boat has 140 hours on original plugs. I run all the fuel additives per Don's suggestion and Mercury's suggestions also. The boats has a very noticable miss when in gear now and I assume it is telling me it is time for plugs. Runs like a scalded dog other than that. What should I have them do at the service and what would need to be changed. Dont wont to be replacing stuff that is not needed.

Thanks Rich