MTD LT31CS SECTION 7: TROUBLE SHOOTING GUIDE, ENGINE WILL NOT START, ENGINE WILL NOT IDLE, ENGINE WILL NOT ACCELERATE, ENGINE LACKS POWER OR STALLS WHEN UNDER LOAD, CAUSE

SECTION 7: TROUBLE SHOOTING GUIDE

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 5-7 times
Engine flooded . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	Use starting procedure with choke lever in the
	RUN position. See page 12.
Old or improperly mixed fuel . . . . . . . . . . . . . . . . . . . . . .	Drain gas 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 gas tank / Add fresh fuel mixture
Improper carburetor adjustment . . . . . . . . . . . . . . . . . . .	Adjust per instruction on page 18

ENGINE WILL NOT ACCELERATE

CAUSE	ACTION
Old or improperly mixed fuel . . . . . . . . . . . . . . . . . . . . . .	Drain gas 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 gas 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.

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