Troy-Bilt AST TB75SS Operator's Manual page 19

CAUSE
Empty fueltank
Primer b ulbwasn'tpressed enough
Engine is flooded
Oldor improperly m ixedfuel
Fouled sparkplug
Plugged sparkarrestor
EZ-Start leverwasn'tflipped/set
Theoutside temperature i s below40 ° F
Theoutside temperature i s above 90° F
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CAUSE
Airfilteris plugged
Oldor improperly m ixedfuel
Improper c arburetor adjustment
CAUSE
Oldor improperly m ixedfuel
Improper c arburetor adjustment
Cuttingattachment boundwithgrass
Dirtyairfilter
Plugged sparkarrestor
CAUSE
Oldor improperly m ixedfuel
Improper c arburetor adjustment
Fouled sparkplug
Plugged sparkarrestor
CAUSE
Cuttingattachment boundwithgrass
Cuttingattachment outof line
Innerreelboundup
Cuttinghead dirty
Linewelded
Linetwistedwhenrefilled
Notenough lineis exposed
CAUSE
Oil, cleaner or lubricant in cutting head
ACTION
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
ACTION
Replace or clean the air filter
Drain gas tank and add fresh fuel mixture
Adjust according to the Carburetor Adjustments section
ACTION
Drain gas tank and add fresh fuel mixture
Take to an authorized service dealer for an adjustment
Stop the engine and clean the cutting attachment
Clean or replace the air filter
Clean or replace spark arrestor
ACTION
Drain gas tank and add flesh fuel mixture
Take to an authorized service dealer for an adjustment
Replace or clean the spark plug
Clean or replace spark arrestor
ACTION
Stop the engine and clean cutting attachment
Refill with new line
Replace the inner reel
Clean inner reel and outer spool
Disassemble, remove the welded section and rewind
Disassemble and rewind the line
Push the bump knob and pull out line until 4 inches
(102 mm) of line is outside of the cutting attachment
ACTION
Clean and thoroughly dry the cutting head
If further assistance is required, contact your authorized service dealer.
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