Toro GTS 150 User Manual

TOP NO LOAD
SPEED SCREW
IDLE MIXTURE
Figure 7
8. Turn the idle mixture screw slowly, clockwise (lean
mixture) until the speed just begins to slow down.
Then, turn the idle mixture screw slowly counterclock-
wise (rich mixture) until the engine increases
in speed
and then just starts to slow down. Turn the screw to a
midpoint position between rich and lean. Note:
if the
speed exceeds 1900 RPM during this adjustment,
repeat step
7 and 8. If the engine does not accelerate
properly, re-adjust the idle mixture screw approxi-
mately 1/8 of a turn counterclockwise to richen the
mixture.
9. Remove the aligning pin and re-adjust the idle speed
stop screw to 1400 100 RPM.
IO. Re-check the high speed setting.
Compression
- Measurement
Engine compression can vary depending on the technique
and compression gauge used to make the measurement.
The compression values given in the specification section
are a reference point only. We recommend the individual
dealer establish compression values based on new prod-
uct using his or her own technique and compression
gauge.
1. Remove the spark plug and install a compression
gauge that threads into the spark plug opening.
2. Pull the starter rope rapidly to achieve a momentary
engine speed of over
500 RPM. This will cause the
compression release mechanism to allow the intake
valve to completely close.
3. Pull the starter rope repeatedly until there is no further
rise in the compression value.
Throttle -Adjustment
Throttle control adjustment may be required
if the engine
does not start, stop or run at the correct speed. Whenever
a new throttle control cable is installed, the throttle must be
adjusted.
1. Stop the engine, allow it to cool and disconnect the
spark plug wire. Remove the key on electric start
models.
2. Move the throttle control to the "Fast" position.
3. Loosen the cable clamp screw until the throttle cable
sheath can slide
in its clamp.
4. Move the throttle cable left or right until holes in the
throttle lever and throttle bracket align. See Figure
8
THROTTLE
BRACKET
HOLES
CABLE 'A'
CABLE
CLAMP
SCREW
Figure 8
5. Insert a 1/8" (3 mm) pin in the aligned holes to hold the
throttle lever in position.
6. Pull the throttle cable slightly to remove any slack and
tighten the cable clamp screw to lock the adjustmen
in place.
7. Remove the 1/8" (3 mm) pin and bring the throttle
control back to the
off position.
8. Connect the spark plug wire.
Clean the Engine and Recoil Starter
Accumulated yard debris and dirt can cause overheating
and malfunction of control linkages. Before every mowing
the muffler area, throttle linkage and air intake screens
should be cleaned of debris.
1. Stop the engine, allow it to cool and disconnect the
spark plug wire. Remove the key on electric starl
models.
2. Remove dirt and debris with a cloth, brush or low
pressure (30 psi, 200 kPa or less) air. When using
compressed air be sure to wear safety glasses
to
prevent eye injury from airborne debris.
3. A forceful stream of water is not recommended as it
could cause contamination of the fuel system.
GTS
150 17 Malntenance

Toro GTS 150 Specifications

General

Brand	Toro
Model	GTS 150
Category	Engine
Language	English