8
Engine Specif
i
cations
Model
Bore
Stroke
Displacement
Oil Capacity
(Ref ll)
Spark
Plug Gap
2.7
6
in.
(
70
mm)
1.77
in.
(
45
mm)
(173 cc)
(0.
5
0 L)
0.0
24-0.031
in.
(0.
6-0.8
mm)
Troubleshooting
Possible Cause
Problem
No
Fuel
Improper
Fuel
Dirt In
Fuel
Line
Dirty
Debris
Screen
Incorrect
Oil Level
Engine
Overloaded
Dirty Air
Cleaner
Faulty
Spark
Plug
Will Not Start
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Hard Starting
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Stops Suddenly
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Lacks Power
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Operates Erratically
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Knocks or Pings
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Skips or Misf
i
res
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Backf
i
res
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Overheats
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High Fuel
Consumption
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DV173
Do not attempt to service or replace major engine components, or any items that require special timing or adjustment
procedures. This work should be performed by the authorized dealer.
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