beautypg.com

Engine will not start, Engine will not idle, Engine will not accelerate – MTD LT31CS User Manual

Page 21: Engine lacks power or stalls when under load, Cutting head will not advance line

background image

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.

SECTION 7: TROUBLE SHOOTING GUIDE

21