Johnson trolling motors are outboard motors used on boats primarily designed for trolling--moving up and down rivers at a fairly low rate of speed. Trolling motors may not have as much power as larger outboard motors, but they need to be reliable and durable, to last for long periods of time on the water. The better the maintenance, the longer the engine will last and faster you will be able to spot problems and malfunctions.
- Trolling motors can benefit from simple attention and good habits when it comes to operating the engine. For instance, if you do not use your motor in a long time, gasoline that remains in the carburetor and other parts of the engine can create build-up and affect engine performance. To avoid this, every time you bring your boat to shore, disconnect the fuel line and let the gas run out into a spare tank until the line is empty. This will keep the motor in good condition until the next time you are ready to use it.
Trolling often requires that you bring your boat into shallow water; use a good prop guard to protect your propeller blades. Cast aluminum versions work well. At the end of every boating trip, check your propeller blades and the guard for any sign of damage or entwined fishing line. If you troll in very salty conditions, such as near a saltwater estuary, thoroughly wash your engine and prop.Basic Maintenance Practices
- Change your engine oil and gear oil once a year--Johnson sells oils meant for its engines, but you may find it cheaper to buy an off brand of oil designed for outboard motors. Try to drain the oil when the engine is hot and you can drain it more thoroughly; have a bucket or similar container handy to catch the oil before it spills into the water. During winter, do not prop up the motor, especially when you leave your boat in the water. A motor tilted up can capture pockets of water which can freeze and cause damage.
Trolling motors should always be kept clean, but this is especially true during summer. Use a motor cover and check regularly for debris and insect nests. Keep the motor dry, and regularly check the electrical wiring for signs of fraying or loose connections.