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6. Low Idle Fuel Needle Setting:
Turn the adjusting needle in (clockwise). The
engine speed may increase, then it will decrease
as the needle is turned in (lean). Note the position
of the needle.
Back the needle out approximately l/8 to l/4
turn. See Figure 11 for best low idle fuel
performance.
Back out
Appx. 118
to l/4
Lean
turn.
Lean
Figure 11. Optimum Low Idle Fuel Setting.
Troubleshooting
When troubles occur, be sure to check the simple causes which, at first, may seem to obvious to be considered.
For example, a starting problem could be caused by an empty fuel tank. Some common causes of engine
troubles are listed in the following table.
Do not attempt to service or replace major engine components, or any items that require special timing or
adjustment procedures. Have your Kohler Engine Service Dealer do this work.
Possible Cause No Improper
Dirt In
Dirty
Incorrect
Engine Ditty Air
Faulty -
Problem Fuel
Fuel
Fuel Line Grass Screen Oil Level
Overloaded Cleaner
Spark Plug
Will Not Start l
0
0 0
0
Hard Starting l
l 0
0 0
0
Stops
Suddenly
~
l
0 0
a 0
0
Lacks Power
0 0
l 0
0 0
0
Operates Erratically
0 0
0
0 0
0
Knocks or Pings
0
0
0
0
Skips or Misfires
0
0 0
0 0
Backfires
l
l
0 0
Overheats
0 0
0 0
0
High Fuel
Consumption
0 0
13