posted 08-03-2005 11:25 PM ET (US)
Neither of these topics are specific to post-1990 Boston Whaler boats, and you will find a lot of discussion in the REPAIRS/MODS or PERFORMANCE forum.Marine batteries can last for ten years or more if treated gently.
If the fuel filter is under the cowling of the engine, it can be a little tricky to change. It depends on where it is on how many other hoses and cables are in the way.
If the filter is not under the cowling of the engine, they are quite easy to change. If you are talking about a canister type filter, I suggest pre-filling the new canister partially with fresh gasoline.
After changing the filter you will have to re-establish a prime in the hoses. Usually you can do this by squeezing the primer bulb until it become firm.