Take Miki's advice on MPEM, and wasn't sure if you have am OEM manual, it's a must have. Coat your box seals with synthetic grease or dielectric (silicone grease but more $). I have original MPEM, coil, starter solenoid (needed a rap with pair of channel locks 16 years ago) and was sunk under a 80 ton boat for 4 hours so OEM stuff is pretty tough. Just got back from Havasu and my XP is still faster than my FX 1800 and way faster accelerating on smooth water.