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38 DR
®
FIELD and BRUSH MOWER
BEFORE PERFORMING ANY MAINTENANCE PROCEDURE, STOP THE ENGINE AND DISCONNECT THE
SPARK PLUG WIRE(S).
SYMPTOM POSSIBLE CAUSE
The engine won’t
start using electric-
start.
(Please refer to the
engine owner’s
manual for engine-
specific procedures.)
⇒ Have you checked all the items under the section called Electric Starting on page
18? If not, do so now.
⇒ There is a fuse in the wiring harness. Check the fuse and replace if needed.
⇒ Check the wire connections—especially the ground connection, the large green
wire coming from the battery, where it connects to the engine.
⇒ Check the wire connections to the solenoid. Disconnect the green battery
ground wire first to avoid sparks. Check to be sure that all of the connections are
clean and tight. Reconnect the battery ground wire.
⇒ Check the ground connection on the solenoid where it’s bolted to the frame.
Using a wrench or socket, tighten the bolts to ensure a good connection to the
frame.
⇒ Is your battery charged? Check the voltage yourself or at a gas station. If it’s low,
charge it with a 12-volt, 1 to 2 Amp trickle charger. If you don’t use your mower
for at least 45 minutes at a time, the battery may need to be periodically charged.
See the Battery Care section on page 24.
⇒ If your battery is charged and your DR still won’t start, call 1(800) DR-OWNER
(376-9637) for assistance.
The engine lacks
power or is not
running smoothly.
(Please refer to the
engine owner’s
manual for engine-
specific procedures.)
⇒ Check the Throttle Lever travel and adjustment. Is the Throttle Lever in the Run
position?
⇒ Is the air filter clean? If it’s dirty, change it following the procedure in the engine
manufacturer’s owner’s manual.
⇒ Is the spark plug(s) clean? If it’s fouled or cracked, change it. If it’s oily, leave it
out, hold a rag over the plug(s) hole and pull your recoil cord several times to
blow out any oil in the cylinder, then wipe off the plug(s) and reinsert it.
⇒ Are you using fresh, clean unleaded gas? If it’s old, change it. Use a fuel stabilizer
if you keep gas longer than two weeks or so.
⇒ Does your engine have the right amount of clean oil? If it’s dirty, change it
following the procedure in the engine manufacturer’s owner’s manual.
⇒ Check the oil level and adjust as needed.
⇒ If your engine still lacks power, call 1(800) DR-OWNER (376-9637) for
assistance.