Tecumseh Products AV520 Operator Manual - Page 9

Engine With Variable Speed Control - service

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7. If engine fires but does not continue to run, move choke control to "NO CHOKE" position and start engine. 8. If engine fails to start after 3 attempts in the "NO CHOKE" position, repeat steps 2 thru 7. 9. If engine does not start after following steps 1 thru 8, contact your Authorized TecumsehPower Servicing Dealer. DO NOT attempt to start or troubleshoot this engine in any other way. B. Engine With Variable Speed Control NOTE Some engines are equipped with a fixed speed control. 1. To avoid carbon monoxide poisoning, be sure engine is outdoors in a well-ventilated area. 2. Move throttle control lever to "FAST" or "START" position, if present (see equipment manufacturer's instructions). See Figure 15. 3. Move choke control on engine to "FULL CHOKE" position. See Figures 11 and 12 on page 6. Afterward, continue reading instructions below. 4. When starting a cold engine, push primer bulb firmly with your thumb 3 times, allowing primer bulb to return completely to original position between pushes. See Figure 13. NOTES Cooler temperatures may require pushing primer bulb firmly with your thumb 5 times. DO NOT use choke or primer bulb to restart a warm engine after a short shutdown. Doing so will flood the engine and may result in equipment malfunction. See Figure 13. WARNING When pulling starter rope, the rope can unexpectedly jerk back toward engine causing serious injury. To avoid this risk, carefully follow these instructions: 5. Grasp starter cord handle. See Figure 14. a. Pull rope out slowly until you feel drag. b. Without allowing the rope to retract, continue pulling rope with one rapid full arm stroke. c. Return rope slowly to original position. NOTE Following the instructions listed in the steps above avoids potential damage to the recoil mechanism. 6. When engine starts: a. Move choke control to "1/2 CHOKE" position until engine runs smoothly. b. Next, move choke control to "NO CHOKE" position. c. Move throttle control lever to desired speed in "RUN" range. See Figure 15. Vent Hole Primer Bulb Figure 13. Engine Primer Bulb Figure 14. Starter Cord Handle 4 3 1. Throttle Control Lever 2. "FAST/START" Position 3. "RUN" Range 4. "STOP" Position 1 2 Figure 15. Variable Speed Engine Control 181-624-14 Two-Cycle Engine • Vertical Crankshaft • Air-Cooled Page 7

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181-624-14
Two-Cycle Engine • Vertical Crankshaft • Air-Cooled
Page 7
7.
If engine fires but does not continue to run, move
choke control to “NO CHOKE” position and start
engine.
8.
If engine fails to start after 3 attempts in the “NO
CHOKE” position, repeat steps 2 thru 7.
9.
If engine does not start after following steps 1 thru 8,
contact your Authorized TecumsehPower Servicing
Dealer. DO NOT attempt to start or troubleshoot this
engine in any other way.
B.
Engine With Variable Speed Control
NOTE
Some engines are equipped with a fixed speed control.
1.
To avoid carbon monoxide poisoning, be sure engine is
outdoors in a well-ventilated area.
2.
Move throttle control lever to “FAST” or “START”
position, if present (see equipment manufacturer’s
instructions). See Figure 15.
3.
Move choke control on engine to “FULL CHOKE”
position. See Figures 11 and 12 on page 6. Afterward,
continue reading instructions below.
4.
When starting a cold engine, push primer bulb firmly
with your thumb 3 times, allowing primer bulb to return
completely to original position between pushes. See
Figure 13.
NOTES
Cooler temperatures may require pushing primer bulb firmly
with your thumb 5 times.
DO NOT use choke or primer bulb to restart a warm engine
after a short shutdown. Doing so will flood the engine and
may result in equipment malfunction. See Figure 13.
When pulling starter rope, the rope
can unexpectedly jerk back toward
engine causing serious injury. To avoid this risk, carefully
follow these instructions:
5.
Grasp starter cord handle. See Figure 14.
a.
Pull rope out slowly until you feel drag.
b.
Without allowing the rope to retract, continue pulling
rope with one rapid full arm stroke.
c.
Return rope
slowly
to original position.
NOTE
Following the instructions listed in the steps above avoids
potential damage to the recoil mechanism.
6.
When engine starts:
a.
Move choke control to “1/2 CHOKE” position until
engine runs smoothly.
b.
Next, move choke control to “NO CHOKE” position.
c.
Move throttle control lever to desired speed in “RUN”
range. See Figure 15.
WARNING
Figure 13. Engine Primer Bulb
Figure 14. Starter Cord Handle
Figure 15. Variable Speed Engine Control
Vent Hole
Primer Bulb
1.
Throttle Control Lever
2.
“FAST/START” Position
3.
“RUN” Range
4.
“STOP” Position
1
4
2
3