Yard-Man LT31 - Manual (Page 17)

ENGINE WILL NOT START
CAUSE ACTION
Empty fuel tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Fill fuel tank with properly mixed fuel
Primer bulb wasn't pressed enough . . . . . . . . . . . . . . . .Press primer bulb fully and slowly 10 times
Engine flooded . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Use starting procedure with choke lever in the
RUN position
Old or improperly mixed fuel . . . . . . . . . . . . . . . . . . . . . .Drain fuel tank / Add fresh fuel mixture
Fouled spark plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Replace or clean the spark plug
ENGINE WILL NOT IDLE
CAUSE ACTION
Air Filter is plugged . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Replace or clean the air filter
Old or improperly mixed fuel . . . . . . . . . . . . . . . . . . . . . .Drain fuel tank / Add fresh fuel mixture
Improper carburetor adjustment . . . . . . . . . . . . . . . . . . .Adjust carburetor
ENGINE WILL NOT ACCELERATE
CAUSE ACTION
Old or improperly mixed fuel . . . . . . . . . . . . . . . . . . . . . .Drain fuel tank / Add fresh fuel mixture
Improper carburetor adjustment . . . . . . . . . . . . . . . . . . .Take to an authorized service dealer for carburetor adjustment
ENGINE LACKS POWER OR STALLS WHEN UNDER LOAD
CAUSE ACTION
Old or improperly mixed fuel . . . . . . . . . . . . . . . . . . . . . .Drain fuel tank / Add fresh fuel mixture
Improper carburetor adjustment . . . . . . . . . . . . . . . . . . .Take to an authorized service dealer for carburetor adjustment
CUTTING HEAD WILL NOT ADVANCE LINE
CAUSE ACTION
Cutting head bound with grass . . . . . . . . . . . . . . . . . . . .Stop the engine and clean cutting head
Cutting head out of line . . . . . . . . . . . . . . . . . . . . . . . . . .Refill with new line
Inner reel bound up . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Replace the inner reel
Cutting head dirty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Clean inner reel and outer spool
Line welded . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Disassemble, remove the welded section and rewind the line
Line twisted when refilled . . . . . . . . . . . . . . . . . . . . . . . .Disassemble and rewind the line
Not enough line is exposed . . . . . . . . . . . . . . . . . . . . . . .Push the bump knob and pull out line until 102 mm
(4 inches) of line is outside of the cutting head
If further assistance is required, contact your authorized service dealer.
SECTION 7: TROUBLE SHOOTING GUIDE
17