Troy-Bilt TB90BC If further assistance is required, contact your authorized service dealer, ENGINE WILL NOT START, ENGINE WILL NOT IDLE, ENGINE WILL NOT ACCELERATE

TROUBLESHOOTING

ENGINE WILL NOT START

C A U S E

Empty fuel tank

Primer bulb wasn't pressed enough Engine is flooded

Old or improperly mixed fuel Fouled spark plug Plugged spark arrestor

Blue EZ-Start lever wasn’t flipped/set The outside temperature is below 40º F The outside temperature is above 90º F

A C T I O N

Fill fuel tank with properly mixed fuel Press primer bulb fully and slowly 10 times Squeeze the trigger and pull the starter rope Drain gas tank and add fresh fuel mixture Replace or clean the spark plug

Clean or replace spark arrestor Move lever to the starting position Pull the starter rope up to 10-15 times

Squeeze the throttle control and pull the starter rope

ENGINE WILL NOT IDLE

C A U S E	A C T I O N
Air filter is plugged	Replace or clean the air filter
Old or improperly mixed fuel	Drain gas tank and add fresh fuel mixture
Improper carburetor adjustment	Adjust according to the Carburetor Adjustments section

ENGINE WILL NOT ACCELERATE

C A U S E	A C T I O N
Old or improperly mixed fuel	Drain gas tank and add fresh fuel mixture
Improper carburetor adjustment	Take to an authorized service dealer for an adjustment
Cutting attachment bound with grass	Stop the engine and clean the cutting attachment
Dirty air filter	Clean or replace the air filter
Plugged spark arrestor	Clean or replace spark arrestor

ENGINE LACKS POWER OR STALLS WHEN CUTTING

C A U S E	A C T I O N
Old or improperly mixed fuel	Drain gas tank and add fresh fuel mixture
Improper carburetor adjustment	Take to an authorized service dealer for an adjustment
Fouled spark plug	Replace or clean the spark plug
Plugged spark arrestor	Clean or replace spark arrestor

CUTTING ATTACHMENT WILL NOT ADVANCE LINE

C A U S E	A C T I O N
Cutting attachment bound with grass	Stop the engine and clean cutting attachment
Cutting attachment 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
Line twisted when refilled	Disassemble and rewind the line
Not enough line is exposed	Push the bump knob and pull out line until 4 inches
	(102 mm) of line is outside of the cutting attachment

CUTTING LINE ADVANCES UNCONTROLLABLY

C A U SE	A C T I O N
Oil, cleaner or lubricant in cutting head	Clean and thoroughly dry the cutting head

If further assistance is required, contact your authorized service dealer.

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