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38         DR
® 
ROTO-HOG™ POWER TILLER
 
 
 
 
WHEN PERFORMING ANY MAINTENANCE, YOU MUST FIRST SHUT OFF THE ENGINE, WAIT FIVE (5) 
MINUTES TO ALLOW PARTS TO COOL AND DISCONNECT THE SPARK PLUG WIRE, KEEPING IT AWAY 
FROM THE SPARK PLUG. 
 
 
S
YMPTOM
 
P
OSSIBLE 
C
AUSE
 
The Engine will not 
start using Electric-
Start. 
 
(Please refer to the 
Engine Owner’s 
Manual for engine-
specific procedures.) 
⇒  Check all the items under the section called Electric-Starting on page 23. 
⇒  Check the previous section on Manual Starting for possible causes.  
⇒  Check the In-Line Fuses in front of the Battery (Figure 4 on page 14). 
⇒  Check the wire connections, especially the ground connection.  This is the large 
black wire leading from the Battery, and connected to the Engine. 
⇒  Check the wire connections to the Solenoid.  To avoid sparks, first disconnect the 
black Battery ground wire.  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 bolts to the Frame.  Using 
a Wrench or Socket, tighten the Bolts to ensure a good connection to the Frame. 
⇒  The Battery may not be charged.  Check the voltage yourself or at a service station.  
If it is low, charge it with a 12-volt, 1 to 2 Amp trickle charger.  If you do not use 
your machine for at least 45 minutes at a time, the Battery may need to be 
periodically charged.  See the Battery Care section on page 32. 
⇒  If the Battery is charged and your DR ROTO-HOG POWER TILLER still will not 
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; it should be set in the FAST position. 
⇒  The Air Filter may be dirty; change it following the procedure in the Engine 
Owner’s Manual. 
⇒  The Spark Plug may be dirty or cracked; change it if necessary.  If it’s oily, leave it 
out, hold a rag over the Plug hole and pull the Recoil Cord several times to blow 
out any oil in the Cylinder, then wipe off the Plug and reinsert it. 
⇒  The gas may be old; change it if necessary.  Use a fuel stabilizer if you keep gas 
longer than one month. 
⇒  The Engine oil may be dirty.  Change it if necessary, following the procedure on 
page 31. 
⇒ 
If your Engine still lacks power, call 1-800-DR-OWNER (376-9637) for assistance.