Chapter 5: Troubleshooting - Generac Power Systems 6.75 Operator's Manual

Chapter 5: Troubleshooting

Most problems are easy to fix. Consult the Troubleshooting Table below for common problems and their solutions. If you
continue to experience problems, contact us at 1-888-545-6576 for support.
Before performing any maintenance procedure or inspection, stop the engine, wait five (5) minutes to allow all parts to cool.
Disconnect the spark plug wire, keeping it away from the spark plug.
Troubleshooting Table
S
YMPTOM
Recoil will not pull out
or is difficult to pull.
The Engine will not start
manually.
(Please refer to the
Engine Owner's Manual
for Engine-specific
procedures.)
Engine smokes.
P C
OSSIBLE AUSE
 Check the Engine oil level, the Engine may be seized.
 There may be an oil compression lock in the Cylinder. Take out the Spark Plug; hold a rag
over the Spark Plug hole and pull the Recoil Cord several times to blow out any oil in the
Cylinder. Wipe off the Spark Plug and reinstall it.
 The Recoil may be broken or jammed. Try to turn the Engine pulley by hand, with the Spark
Plug wire off. If it turns, the Recoil is broken or jammed. Call us at 1-888-545-6576 for
assistance.
 Check that the Throttle is in the most forward position (or RUN position when the engine is
warm). Check the Throttle Cable and make sure that it is attached to the Engine and is
moving freely.
 Check for proper attachment of the Spark Plug wire.
 Check that the Engine has the right amount of clean oil. If the oil is dirty, change it
following the procedure on page 24.
 You should be using fresh, clean, unleaded gas with no more than 10% Ethanol. If the gas
is old, change it. Use a fuel stabilizer if you keep gas longer than one month.
 Check the Fuel Filter (if equipped) to see if it is clear. Place a can under the Fuel Filter and
remove the Fuel Line from the Engine side of the Filter. If gas flows freely, it is OK.
 Check that the Air Filter is clean. If it is dirty, change it following the procedure in the
Engine Owner's Manual.
 Make sure that the Spark Plug is clean. If the Spark Plug is dirty or cracked, change it. If
it's oily, leave it out, hold a rag over the Spark Plug hole and pull the Recoil Cord several
times to blow out any oil in the Cylinder, then wipe off the Spark Plug and reinsert it.
 If the Engine still will not start, call us at 1-888-545-6576 for assistance.
 Check the oil level and adjust as needed.
 You may be operating the machine on too great an incline. (See Slopes on page 16)
 Check the Air Filter and clean or replace if needed.
 You may be using the wrong oil - too light for the temperature. Refer to your Engine
Owner's Manual for detailed information.
 Clean the Engine cooling fins and the carburetor housing if they are dirty.
 If the Engine still smokes, call us at 1-888-545-6576 for assistance.
CONTACT US AT 1-888-545-6576
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