Suzuki 175 Four Stroke Outboard Manual
Re: Suzuki Maintenance Schedule / real world vs. Owners manual. 175 4 stroke keep your fuel clean and fresh, use Stabil Marine all the time, more when you're not going to run motor for several weeks/months, install fuel/water seperator(Walmart $27), other brands are fine too.
Change your oil/filter on the schedule, check belts, hoses, pumps, filters, spark plugs, all electrical connections for vibration or corrosion, every time you use motor. Last week I just decided to remove my prop to check everything out down there and there was a ball of monofilament fishing line all wrapped around the hub which could have damaged the lower seal, but didn't because I found it.
Suzuki 175 Four Stroke Outboard Manual Manual
Suzuki 175 Four Stroke Outboard Manual Oil
These motors a really very good and designed to run, but you need to stay on top of them on a regular basis.