How do you adjust a Mercury outboard carburetor?
Turn the idle speed screw on the carburetor linkage to adjust the motor’s speed to between 700 and 800 rpm. Put the motor in “Forward.” Turn the mixture screw clockwise until the motor begins to misfire. Turn the screw counterclockwise one-quarter turn or until the motor no longer misfires.
How much horsepower does a 9.9 Mercury have?
Specifications – 9.9 ProKicker
| HP / kW | 9.9 / 7.3 |
|---|---|
| Full throttle RPM | 5000-6000 |
| Fuel induction system | 2 valves per cylinder, single overhead cam (SOHC) |
| Alternator amp / Watt | 6 amp / 76 watt |
| Recommended fuel | 87 octane / up to 10% ethanol |
How do you adjust the idle on a 4 stroke Mercury outboard?
Insert a screwdriver into the Mercury’s idle adjustment screw, located at the bottom of the carburetor, and turn it to the left until the motor barely continues to run. Insert the screwdriver into the valve screw and turn it in 1/8-turn increments to the right until the motor idles evenly and smooth.
How do you adjust a 4 stroke outboard carburetor?
The idle adjustment is on the underside of an outboard carburetor. Use a small adjustable wrench or screwdriver and rotate the idle adjustment 1/4 turn clockwise until the engine idle slows. Rotate the valve counterclockwise in 1/8-turn increments until the engine idles smoothly.
How do you adjust the idle speed on a Mercury outboard?
Loosen the idle screw, located to the left of the throttle until the throttle plate is closed: the throttle-shutter positioner will not touch the taper of the idle speed screw. Loosen the jam nuts on the throttle-cable sleeves, just below the throttle cam. Move the throttle to the “Idle” position.
How much does a Mercury 9.9 4 stroke cost?
$2,700
Values
| Suggested List Price | Average Retail | |
|---|---|---|
| Base Price | $2,700 | $2,495 |
| Total Price | $2,700 | $2,495 |
How much does a Mercury 9.9 4-stroke cost?
How often should you change the impeller on a Mercury outboard motor?
In most cases, you won’t need to replace the water pump unless the housing is damaged. Instead, replacing the water pump impeller every three years or sooner should avoid most water-pump-related issues and keep your outboard running in excellent condition.
What is included in a outboard tune-up?
This basic service will include an oil-and-filter change (for four-stroke engines), changing the gearcase lubricant in outboard and sterndrive engines, changing the fuel filter element, and perhaps installing fresh spark plugs.