Check Spark Plugs; Emptying The Fuel Tank And Cleaning The Fuel Filter - Exmark 30" Operator's Manual

Maintenance
Change Blade Drive Belt
Service Interval: As required
1. Stop the engine and wait for all moving parts to
stop.
2. Disconnect the wire from the spark plug.
3. Remove and retain the front belt cover and its
four bolts. Remove any debris under the cover.
4. Remove and retain the BBC bracket and its
mounting hardware. Remove the BBC belt from
the front LH pulley.
5. Loosen the blade drive adjusting bolt (refer to
Figure 24).
6. Remove and retain the fixed idler pulley and its
hardware (see Figure 25).
Figure 25
1. Hole in deck
2. RH sprocket hole
3. Fixed idler
4. LH sprocket hole (BBC idler removed for clarity)
7. Remove the blade drive belt.
8. Align the holes in the RH and LH sprockets with
the holes in the deck as shown in Figure 25. Hold
the sprockets in place with a rod or screwdriver.
9. Once the sprockets are locked into place, reinstall
the blade drive belt and the fixed idler pulley.
Note: Make sure the teeth are engaged in the
sprockets.
10. Tighten the belt tension to the recommended
settings; refer to Check the Blade Drive System.
11. Remove the rod or screwdrivers from the
sprockets.
12. Check the blades under the deck to make sure
they are properly aligned; refer to Check the
Mower Blade section.
13. Reinstall the BBC belt and the BBC bracket.
14. Reinstall the belt cover using the four bolts.
15. Connect the wire to the spark plug.
16. Check the operation of the blade control lever
and the blade brake clutch.

Check Spark Plugs

Service Interval: Every 100 hours
1. Stop the engine and wait for all moving parts to
stop.
2. Disconnect the wire from the spark plug (see
Figure 7).
3. Clean around the spark plug.
4. Remove the spark plug from the cylinder head.
Note: Replace a cracked, fouled, or dirty spark
plug. Do Not clean the electrodes because grit
entering the cylinder can damage the engine.
5. Set the gap on the plug to 0.030 inch (0.76 mm)
(Figure 26).
1. Side electrode
2. Center electrode
insulator
6. Install the spark plug and the gasket seal.
7. Torque the plug to 17 ft-lb (23 N-m).
8. Connect the wire to the spark plug.
Emptying the Fuel Tank and
Cleaning the Fuel Filter
Service Interval: Every 100 hours
26
Figure 26
3. Air gap—0.030 inch
(0.76 mm)