181-1215-14 Four-Cycle Engine • Vertical Crankshaft • Air-Cooled Page 9
III. Primer Bulb and Choke
In Temperatures Above 40°F (5°C):
Follow instructions in Section A.1. See "I. Primer Bulb
Only" instructions and Table 3 on page 7.
In Temperatures Below 40°F (5°C):
1. To avoid carbon monoxide poisoning, be sure engine is
outdoors in a well-ventilated area.
2. Move engine throttle control to “CHOKE” or “START”
position, if present (see equipment manufacturer’s
instructions). See Figures 17 thru 19.
3. When starting a cold engine, press primer bulb firmly
3 times, allowing primer bulb to return completely to
original position between pushes. See Figures 15 and
20 starting on page 8. Afterward, continue reading
instructions below.
NOTES
Be sure to cover vent hole when pressing primer bulb.
See Figure 20.
Cooler temperatures may require pushing primer bulb firmly
5 times.
DO NOT use primer to restart a warm engine after a short
shutdown. Doing so will flood the engine and may result in
equipment malfunction.
4. Operate equipment control to release engine brake or
clutch, if present (see equipment manufacturer’s
instructions). See Figure 17.
NOTE
DO NOT operate an electric starter for more than 5 seconds
each attempt.
5. Push starter button or turn ignition switch key to start
engine.
6. When engine starts:
a. Release starter button or ignition switch key.
b. Move engine throttle control to “FAST” position.
See Figures 17 thru 19.
c. Next, move engine throttle control to desired speed
in “RUN” range.
NOTES
If engine starts but falters when engine throttle control is
moved to “FAST” position:
a. Move engine throttle control back to “CHOKE”
position. See Figures 17 thru 19.
b. Next, move engine throttle control to “FAST”
position. See Figures 17 thru 19.
If engine dies after engine throttle control is moved to
“FAST” position, repeat steps 2 thru 6 to restart engine.
Figure 17. Typical Engine Controls
Figure 18. Typical Engine Symbols
Figure 19. Start/Choke Control Positions
Figure 20. Pressing Primer Bulb
1. Electric Start Switch
2. Engine Throttle Control
3. Equipment Control
1
3
2
STOP
STOP SLOW RUN FAST CHOKE PRIMER
1. “SLOW” Position
2. “RUN” Range
3. “FAST” Position
3
2
1
1. Primer Bulb
2. Vent Hole
1
2