Over the years monitoring this forum I have compiled a list of issues with the Honda BF 200/225's. You may find this helpful for items to keep an eye on. The link is at the end of this post. These are exceptionally good engines, but need to be maintained IAW the maintenance schedule, plus other items.
Some additions and changes to the published maintenance schedule off the top of my head...
Make sure you have an external in-line fuel/water separator installed, (e.g. Racor 10 Micron) and drain it about every 50 hours or so. More often if you are using ethanol-laced fuel. Replace the element every season. This pre-filter will do a good job of keeping your fuel system clean and trouble free.
There are six different fuel filters and screens in the fuel feed system. Only two, the HP and LP fuel filters, are discussed in the maintenance schedule. If you start experiencing performance problems, more often than not, the HP fuel filter is the culprit. If that is not the issue, then see posts on this forum to find the other screens and filters. I've posted them several times.
Every time you pull the 100 hour maintenance, or at the end of each season...
* Change the oil AND the oil filter - contrary to the 200 hours Honda recommends on the filter change.
* Pull the spark plugs and inspect for proper firing. They should have a milk chocolate coating. When reinstalling plugs, lightly coat threads with high temp grease.
* Change the HP fuel filter at the end of every season, no matter how few hours you have on the engine.
* Drain the VST
* Check that big anode on the bottom of the transom bracket mount. Make sure the mating surfaces are clean, make good contact, and the ground cable is present and connected. If the anode is heavily pitted, grind the surface so it has good exposure to the water, or replace it if it has lost 30% - 40% of its weight.
* Pull the prop and check for fishing line or debris under the hub. Re-grease the splines liberally.
The more you run these engines, the better they run.
If you plan to do your own maintenance, then invest in the Official Helm Shop Manual. It will save you a lot of money in the long run. Chapter 3 provides very detailed maintenance procedures. It's about $116 on eBay or Amazon. Make sure you get the one for your engine year/model, since there have been newer one's published. Don't waste your money on the cheaper after-market manuals - too many errors and omissions.
View attachment Honda Gripe List.pdf
