Use and Care Manual

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.
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9. Check plug gap (B) with a wire feeler gauge. To change gap, move
the outer electrode.
Gap must meet specications.
Specication
Spark Plug — Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.030 in. (0.76 mm)
10. Install and tighten spark plugs to specications.
Specication
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.
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6. Slide hose clamps (A) away from fuel lter (B) using a pliers.
7. Disconnect hoses from lter, and raise fuel lines vertically to avoid
fuel drainage.
IMPORTANT: Incorrect installation of fuel lter may cause engine
damage. Install the lter with the arrow pointing in the
direction of fuel ow (towards the engine) for proper
operation.
8. Connect hoses to new lter making sure the lter arrow is pointed
in the direction of the fuel ow.
9. Install clamps and check for leaks.
10. Lower hood.
Service Transmission
Checking Transmission
The transmission is a sealed component. No maintenance is required
on this transmission. If you suspect any transmission problems, please
contact your authorized dealer.
Service Mower
Removing or Installing Mower Drive Belt at
Engine Drive Sheave 122 cm (48 in.) and 137
cm (54 in.) Mower Deck)
1. Park machine safely. (See Parking Safely in SAFETY section.)
2. Put lift lever in lowest position.
Service Transmission
39