Suzuki Outboard Gaskets - Seals - O-Rings - Grommets

Suzuki Marine Gaskets, Seals, O-Rings, and Grommets - Resources & Information

Like automotive engines, boat engines can develop leaks through use and the harsh aquatic environment. PartsVu is happy to offer a wide selection of certified Suzuki Outboard Gaskets, Seals, O-Rings, and Grommets for all Suzuki engine models and years. Whether you need a single Suzuki o-ring or a Suzuki complete engine maintenance kit,  Suzuki outboard motor OEM parts are stocked and available from the PartsVu warehouse and ready to ship. 

In addition to Suzuki Outboard Gaskets - Seals - O-Rings - Grommets, PartsVu is also proud to help boaters by providing helpful resources for Suzuki outboard motors:

• Suzuki Outboard Engine Oil Capacities & Oil Filter Chart
• Suzuki Outboard Engine Gear Lube Capacity Chart
• Suzuki Outboard 100-Hour Service Checklist
• Suzuki Outboard Season Breakout Guide

Suzuki Outboard Gaskets - Seals - O-Rings - Grommets FAQ

How do I service my Suzuki 4-stroke outboard fuel system? 

Depending on your application and style of boat, your Suzuki fuel system may include a fuel-water separating filter. If you have not seen one, follow the routing of your fuel hose from the engine rigging tube backward through the boat. These vary in shape and manufacturer, so be sure to order the identical replacement size for the best fit. Verado owners may not have an inline filter as the engine has a water separator under the cowling.

Use a filter wrench to loosen the existing filter element and use caution when removing it as it will be filled with gasoline. A clear plastic or glass container is helpful to dump the filter and examine the contents. A small amount of debris is common, as is a small amount of water after the fuel has had a moment to settle. More significant amounts of water would warrant further investigation.

If your filter’s mounting location allows it, pre-fill the replacement filter with some gasoline to make re-priming the fuel system easier. It is also advisable to use a small amount of grease or engine oil to lubricate the o-ring before installation. Spin on and hand tighten only about a half turn to snug.

Move back to the engine and locate the filter element(s) on the engine. The scope of this service will only include the low-pressure fuel filter and fuel water separator if applicable by model. Suzuki recommends that owners do not service their high-pressure fuel filters. Depending on your engine model, the water separator filter (or castle filter) may be removed by using a wrench, standard tools, and a little caution. Unplug the water-in-fuel sensor if applicable and spin the cap off of the housing. Replace the filter element with a fresh one, lube the o-ring with grease or oil, and carefully reinstall the cap.

For most other models, the low-pressure fuel filter is inline where the fuel supply line passes down the side of the cowling. On applicable models, locate the Schrader valve on the fuel system. Cover the valve with a rag or towel and depress the valve stem to vent the pressure from the system before service. With the pressure vented, remove the inline filter and replace it with a new one paying particular attention to locate the clamps or zip ties securing the hoses to the filter.

Locate your engine’s primer bulb if applicable and use the primer to pump up the fuel system. You should feel and hear gasoline entering and filling the filter cup. Check for leaks and prime until the bulb becomes firm.

If you are not already regularly running Suzuki ECSTAR Fuel Injector Cleaner (for fuel injected engines) or Suzuki ECSTAR Fuel Conditioner & Water Remover through your Suzuki fuel system, the 100-hour service interval is an excellent time for a “shock treatment.” 

Suzuki ECSTAR Fuel Injector Cleaner is a fuel system cleaner and top-lube that will help to clean deposits from the tank, lines, carburetors, injectors, and pumps. It breaks up fuel system varnish and will help to prevent gumming.

Suzuki ECSTAR Fuel Conditioner & Water Remover is a fuel system conditioner that also helps to remove carbon deposits. It prevents phase separation that draws water into the engine, while also removing any moisture in the fuel system to prevent corrosion. 

How do I know if I have water in my Suzuki outboard engine block?

If you are confronted with water in your Suzuki outboard engine, the first place to look before disassembling the engine and checking for a porous Suzuki outboard engine block, cracked Suzuki cylinder head, eroded exhaust-water passage, frozen oil cooler, or other labor-intensive issues, is the Suzuki thermostat. Remember that some engines have two thermostats, like Suzuki’s V-engines.

To locate the Suzuki thermostat(s), be sure to refer to the service manual as the location varies by the engine. The service manual procedure states that you should put the thermostat in a pot of hot water and check if it opens and closes at the correct temperature. If you do not have access to this method, then an infrared temperature gun can be used at the thermostat housing to get an indication of engine temperature. Again, refer to the service manual for the correct temperature operating range.

If you’ve determined that the engine is running cold, it’s a good indicator that the thermostat is stuck open. Remove the thermostat housing and inspect it. If it is stuck open, replace the thermostat with a new one, and be sure to do several oil and filter changes to ensure water is removed from the engine’s oil.

You might be wondering how water gets into the oil due to a thermostat being stuck open. If the engine is running cold, the hot oil meeting a cold engine can produce condensation. The condensation eventually condenses into water and falls into the oil. With an engine running cold, water isn’t the only pollutant getting into the oil. The piston rings (running cold) won’t fully expand to thoroughly seal against the Suzuki outboard cylinder wall and may allow a small percentage of raw fuel to constantly seep past them and collect in the sump. Prolonged running with this condition can cause the oil to develop a milky residue. Debris can also get stuck in thermostats and prevent them from retracting back to the closed position.

If you suspect water in the engine oil, there are a couple of quick ways to check. One way is to remove and look at the underside of the oil cap to see if there’s moisture in it. Another way is to pull out the dipstick to check for moisture in the oil. Either method is effective. Suzuki thermostat issues can be prevented by flushing the engine regularly per the owner’s manual.

How do I take care of my Suzuki outboard engine’s exterior? 

PartsVu offers a wide array of polish and sealant products that will restore a lustrous shine to paint, chrome, glass, and smooth plastics like visors, engine cowlings, windshields, and gauges. For your Suzuki Outboard Cowling and Casing Assemblies, you can expect to repel dust and dirt to keep a long-lasting, ship-shape shine. 

Additionally, Suzuki boaters can use Yamalube External Engine Cleaner, a powerful engine degreaser and engine cleaner, to remove grease, mud, and grime. It is safe for use on most rubber, plastic, and painted metal surfaces.

How often should I grease my Suzuki outboard grease points?

You must grease all points at regular service intervals—minimally, annually. Saltwater boaters need to lubricate much more frequently as saltwater breaks down grease, and saltwater on non lubricated surfaces causes a great deal of damage.

Refer to your owner’s manual to locate all the grease fittings on your specific engine. Most will be easy to find, but a couple are likely tucked away and are not quite as visible. While you must familiarize yourself with the grease fittings on your specific engine, common grease fitting points include:

• Steering friction adjustment shaft (tiller handle models) 
• Swivel bracket
• Tilt tube
• Steering cable grease fitting

To add grease, first wipe off the grease fitting before attaching the grease gun nozzle to avoid pumping dirt and debris into the grease point. Also, you may have to remove rust and other debris clogging/blocking grease fittings. 

Pump grease into the fitting until grease begins oozing out of the exit points of the area being greased. The old grease will be pushed out as it is being dislocated by the new grease. Wipe off the old grease with your rag.

When a given grease point is full, leave a bit of grease on top of the grease fitting to keep rust and other debris from accumulating. Wipe off any excess grease with your rag, then move to the next grease fitting.

While not needed for all scenarios, it is worth noting that Suzuki Water-Resistant Grease is formulated for high-temperature and high-load applications.

How do I perform a 100-hour service on my Suzuki outboard engine?

To ensure proper engine function, it’s always best to service your Suzuki outboard engine every 100 hours after the initial break-in period (first 10 hours) and after the first maintenance interval (at 20 hours). 

The following is a Suzuki outboard 100-hour service checklist to help you service your engine properly:

If you want a more in-depth explanation of how to perform a 100-hour service on a Suzuki outboard engine, read our blog “Suzuki Outboard 100-Hour Service Checklist”. Also, be sure to refer to your Suzuki Outboard Service Manual for which parts you’ll need, how to perform basic repairs, and other engine-specific tasks

To make engine maintenance even easier, PartsVu has a wide selection of Suzuki outboard engine 100-hour service kits available. They’re pre-assembled with everything you need to keep your boat happy and healthy every 100 hours.