Spark Plug - Toro 53002 Operator's Manual

When the throttle trigger is released, the engine should
return to an idle speed between 2400 and 2800 RPM, or
just below the clutch engagement speed. The trimmer
head must not rotate and the engine should not stall (stop
running) at engine idle speed (Fig. 27).
Figure 27
1. Throttle Trigger in Idle
Position
To adjust the engine idle speed, rotate the idle speed
adjustment screw on the carburetor (Fig. 28).
Turn the idle speed screw in (clockwise) to increase
the engine idle speed.
Turn the screw out (counterclockwise) to decrease the
engine idle speed.
If idle speed adjustment is necessary, and after
adjustment the trimmer head rotates or the engine
stalls, stop using the String Trimmer immediately!
Contact your local authorized Toro Dealer for assistance
and servicing.
17
2. No Trimmer Head
Rotation
Figure 28
1. Idle Speed Adjustment Screw

Spark Plug

Maintenance Interval
The spark plug should be removed from the engine
and checked after each 25 hours of operation.
Replace the spark plug (NGK BPM6Y) after every 100
hours of operation.
Spark Plug Maintenance
Model 53010 & 53011
1. With the engine at ambient (room) temperature,
remove the socket head screw holding the muffler
cover, then remove the muffler cover (Fig. 30).
2. Loosen the cylinder cover screw and lift off the
cylinder cover (Fig. 29).
Figure 29
1. Screw 2. Cylinder Cover