Filter
Top Products
10. Install new lter assembly back onto air cleaner base.
11. Install air cleaner cover and tighten two knobs.
12. Lower hood.
Checking and Cleaning Emission Filter (If
Equipped)
1. Park machine safely. (See Parking Safely in the SAFETY section.)
GXAL42020—UN—04MAR13
2. Inspect lter (A) for dirt and damage, wash or replace if required.
a. Remove cover (B) and remove emission lter (A) from under rear
of fender deck.
b. Wash foam lter in a solution of warm water and liquid detergent.
Do not use oil.
c. Rinse lter thoroughly. Squeeze out excess water in a dry cloth
until lter is completely dry.
If foam lter cannot be cleaned properly or is damaged, replace
with a new lter.
d. Install foam air lter and secure with cover.
Checking Spark Plug
1. Park machine safely. (See Parking Safely in the SAFETY section.)
2. Let engine cool.
3. Lift hood.
GXAL42021—UN—04MAR13
Twin cylinder engine shown
4. Disconnect spark plug wire(s) (A), one on each side on V-twin
engines.
5. Remove spark plug(s).
6. Clean spark plug carefully with a wire brush.
7. Inspect spark plug for:
• Cracked porcelain.
• Pitted or damaged electrodes.
• Other wear or damage.
8. Replace spark plug as necessary.
GXAL42022—UN—04MAR13
9. Check plug gap (B) with a wire feeler gauge. To change gap, move
the outer electrode.
Gap must meet specications.
Specication
Spark Plug — Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.030 in. (0.76 mm)
10. Install and tighten spark plugs to specications.
Specication
Spark Plug — Torque. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 lb-ft (20 N·m)
11. Connect spark plug wire(s) and lower hood.
Adjusting Carburetor
NOTE: Carburetor is calibrated by the engine manufacturer and is not
adjustable.
If engine is operated at altitudes above 1006 m (3,300 ft), some
carburetors may require a special high altitude main jet. See your
authorized dealer.
If engine is hard to start or runs rough, check the TROUBLESHOOTING
section of this manual.
Possible engine surging will occur at high throttle with transmission in “N”
neutral and mower engagement lever disengaged. This is a normal
condition due to the emission control system.
After performing the checks in the troubleshooting section and your
engine is still not performing correctly, contact your authorized dealer.
Replacing Fuel Filter
NOTE: Change lter when fuel is low.
1. Park machine safely. (See Parking Safely in the SAFETY section.)
2. Let engine cool.
3. Lift hood.
4. Handle fuel safely. (See Handling Fuel Safely in the SAFETY
section.)
5. Put a drain pan under fuel lter.
Service Engine
38