Outboard Maintenance Check: Every 100 Hours | BoatUS

While you might enjoy doing work on your boat engine yourself, when it comes to the 100-hour outboard maintenance check, it's a good idea to take your boat and outboard engine to a pro for service. But whether you hire a mechanic to do the service or do it yourself, it should be done using the manufacturer recommendations. Each outboard is different, but Benny Quinn, master technician from Annapolis Boat Sales, shows you some of the things your mechanic will check or do during this critical 100-hour service milestone: lubricate the grease fittings on the engine, check the power trim and tilt fluid and for any leaks in the power trim and tilt system, make sure your connectors are tight and to spray them down with silicone spray to keep moisture and corrosion at bay, check the shift and the throttle cable linkages, retorque your bolts and fasteners, check engine mounts and steering brackets for extra play or leaks, inspect or replace spark plugs as necessary, change your gearcase and powerhead oils, make sure your fuel lines are tight and not leaking, check for dry rot or cracks, replace your fuel-water separator, run a really good fuel stabilizer, make sure that your mounting bolts are not loose, corroded, or damaged in any way, check that the head of the bolt is not sucking into the transom and cracking the gelcoat, make sure your prop and your skeg are in good shape, check the cowling for nests, make sure the boat hits max RPM, make sure that your telltale is putting out water, inspect or replace the water pump impeller as necessary, grease the dry shaft at the grease points on the splines and the bushing areas, check for fishing line behind the prop before the seal, make sure you grease the splines, the prop shaft before you reinstall the prop with a brand new cotter pin, and grease your shift shaft. See our full boat-and-trailer maintenance checklist at https://www.boatus.com/expert-advice/expert-advice-archive/2020/february/boat-and-trailer-maintenance-checklist 🚩Enjoy this video? Become a BoatUS Member today to get 25+ valuable benefits including a subscription to award-winning BoatUS Magazine! https://boat.us/e/sy-join 🚩Visit the BoatUS Magazine website: https://www.boatus.com/Expert-Advice. BoatUS is the nation’s largest association of recreational boaters with more than half a million Members. We provide a diverse offering of services including marine insurance, on-the-water towing provided by TowBoatUS, the nation’s largest fleet, plus boat financing, graphics and lettering, representation for boaters on Capitol Hill, the award-winning BoatUS Magazine and much more. For more than 50 years, BoatUS has made boating safer, more affordable and more accessible. 🚩Download the FREE BoatUS App today to access NOAA marine weather, tides, exclusive Member discounts, and your BoatUS account. Assistance on the water has never been easier with TowBoatUS CONNECT in the BoatUS App — the fastest way to get a tow! https://boat.us/sy-app 🚩Connect with us: https://Facebook.com/BoatUS https://Twitter.com/BoatUS https://Instagram.com/BoatUS https://Pinterest.com/BoatUS https://linkedin.com/company/boatus #boatus #boatenginemaintenance #outboardenginemaintenance