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26
TROUBLESHOOTING
PROBLEM
CAUSE
ACTION
Engine Is Difficult to
Ignition switch is “STOP (O)"
Turn switch to “RUN (I)”
Start or Will Not Start
Primer bulb wasn’t pushed enough
Press primer bulb fully and slowly 5-7 times
Engine is not choked
Use starting procedure, USING
"FULL" CHOKE" (Page 9)
Empty fuel tank
Fill fuel tank
Engine flooded
Use starting procedure, USING
"PARTIAL" CHOKE (Page 9)
Valve clearance is out of
Use adjust valve to rocker arm
adjustment
clearance procedure (Pages 18 and 19)
Plugged spark arrester screen
Clean or replace spark arrester screen (Page 19)
Spark plug fouled
Clean spark plug and regap or replace
Engine Will Not Idle
Air filter is plugged
Clean and re-oil air filter or replace (Page 15)
Carburetor misadjusted
Adjust carburetor (Pages 16-17)
Engine Will Not Accelerate
Carburetor misadjusted
Adjust carburetor (Pages 16-17)
Engine Lacks Power or Stalls
Dirty air filter
Clean and re-oil air filter or replace (Page 15)
When Cutting
Valve clearance is out of
Use adjust valve to rocker arm
adjustment
clearance procedure (Pages 18-19)
Dirty spark arrestor screen
Clean or replace screen
Carburetor misadjusted
Adjust carburetor (Pages 16-17)
Not enough fuel in fuel tank
Fill fuel tank
Cutting Head Will Not Advance
Cutting head out of line
Refill with new cutting line (Pages 13-14)
Line
Inner reel bound up
Replace inner reel (Pages 13-14)
Cutting head dirty
Clean inner reel and outer spool (Pages 13-14)
Indexing teeth worn or burred
Replace inner reel and outer spool
(Pages 13-14)
Line welded
Disassemble cutting head, remove the welded
section and rewind the line
Line twisted when refilled
Disassemble cutting head and rewind reel
Not enough line is exposed
Push the Bump Knob and pull out the line until
a minimum of 102 mm (4 in) is outside of the
cutting head
Starter Rope Is Difficult to Pull
Oil accumulated in combustion
Remove the spark plug
or Engine Locks
chamber
Unit operated with low or no oil
Drain the oil from the spark plug hole
Pull the starter rope several times to remove
any excess oil from the cylinder
Clean the spark plug and wipe off excess oil
with a dry cloth
Reinstall the spark plug
Check oil before starting
If further assistance is required, contact your local authorized service dealer or call 1-800-345-8746.