Adjusting the idle on an Evinrude outboard motor helps to increase the motor's efficiency. This is particularly important if you use your motor as a trolling motor in addition to a main source of propulsion. Just like any of the other small maintenance chores, you can adjust the idle yourself with a minimum of fuss and tools.
Things You'll Need
- 3/8-inch open-end wrench
- Standard slotted screwdriver
Loosen the idle speed screw's lock nut with a 3/8-inch open-end wrench.
Turn the idle speed screw with a standard slotted screwdriver until the tachometer indicates the idle speed is between 800 and 900 RPM.
Tighten the idle speed screw lock nut.
- "Evinrude Repair Manual--2.5 to 250 HP Models, 2001-2009;" SELOC; 2009
How to Adjust the Gas Intake and Speed on a Johnson Outboard Motor
When you adjust the gas intake and speed of a Johnson outboard motor, you're accomplishing two tasks in one. You're setting the...
How to Adjust the Idle on a 48 HP Evinrude
Even in the dead of winter, a dedicated boater tinkers with the boat. One form of tinkering, adjusting the idle speed of...
Evinrude 40Hp Troubleshooting
Allow the engine to stop, look at the propeller, and clear it of seaweed and other weeds if the engine won't stop...
How to Adjust an Evinrude Carburetor
Confirm the idle speed adjustment is correct by running the engine at various throttle positions. If the engine is running too rich...
How to Adjust the Carburetor on a 40-HP Evinrude Outboard
There are few adjustments you can make to the carburetor of the 40-horsepower Johnson. It is a single piece, unitized in its...
How to Winterize Evinrude Boat Motors
While winterizing your Evinrude, your thoughts might turn to the spring fitting---preparing your boat for a long boating season, the things you'll...
How to Set the Idle on a Johnson Outboard
Johnson outboard motors are used on a number of different powerboats, both by casual boaters and professionals. Over time, the carburetor may...
How to Adjust Idle Mixture Screws on a 2-Cycle Outboard Motor
Routinely adjusting the idle mixture screws on a 2-cycle outboard motor will keep the engine running efficiently and provide power when you...
How to Rebuild the Lower End of an Evinrude
When you need to rebuild the lower end of an Evinrude, the task may seem complicated, but take heart: The work does...
How to Adjust the Idle on a Mercury 40-HP Motor
Mercury is among the foremost brands of outboard boat motors. The Mercury 40 horsepower motor is a motor for medium to larger...
Evinrude Outboard Tune-Up Specs
Evinrude Outboard Tune Up Specs. The tune-up specifications for Evinrude outboard motors include the ignition timing adjustment, the idle speed -- which...