weight of 1999 mercury 200 efi
most merc 50hp with efi and electric start have a 18amp alternator. This from mid 90's to now
475lbs
Follow the link for the steps.
The 1997 model Mercury, 225 hp EFI uses a NGK BR8HS plug, gapped to .035 in.
The Mercury EFI outboards require a minimum octane rating of 87. Since the engine will operate on the lower octane fuel, it is a matter of personal preference.
5000-5500 rpm
71-77kgr for 25hp EFI
your motor details: Product Information Serial Number: A953275 Model Number: MER 1924816 Manufacturing Year: 1987 Description: EFI
Need to know the Model (Optimax, XR, Verado, etc) and a year would be helpfull too. model xr year1999
1987
What is the correct spark plug gap setting for a Mercury outboard 2003 200 HP EFI