Troy-Bilt TB90BC - User Manual

Other manuals for Troy-Bilt TB90BC

Parts List2 pages

Questions and Answers

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christopher72Jul 31, 2025
What to do if the cutting attachment on my Troy-Bilt TB90BC will not advance line?
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  Jessica HoustonJul 31, 2025
  If the cutting attachment on your Troy-Bilt Trimmer won't advance the line, consider the following: * The cutting attachment may be bound with grass. Stop the engine and clean the cutting attachment. * The cutting attachment might be out of line. Refill it with new line. * The inner reel could be bound up. Clean the inner reel and outer spool. * The cutting head may be dirty. Stop the engine and clean the cutting attachment. * The line could be welded. Disassemble, remove the welded section, and rewind. * The line may have been twisted when refilled. Disassemble and rewind the line. * Not enough line may be exposed. Push the bump knob and pull out line until 4 inches (102 mm) of line is outside of the cutting attachment.
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Anna GrayAug 4, 2025
What to do if Troy-Bilt TB90BC engine will not accelerate?
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  Carol ReeseAug 5, 2025
  If your Troy-Bilt Trimmer engine won't accelerate, consider these potential causes: * Old or improperly mixed fuel could be the issue. Drain the gas tank and add a fresh fuel mixture. * The carburetor may need adjustment. Adjust it according to the Carburetor Adjustments section or take it to an authorized service dealer for adjustment. * The cutting attachment might be bound with grass. Stop the engine and clean the cutting attachment. * A dirty air filter can cause acceleration problems. Clean or replace the air filter. * A plugged spark arrestor can also prevent acceleration. Clean or replace the spark arrestor.
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scottjonesAug 10, 2025
Why does my Troy-Bilt TB90BC Trimmer engine lack power or stall when cutting?
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  Stephen HarrisAug 10, 2025
  If your Troy-Bilt Trimmer engine lacks power or stalls when cutting, here are some possible reasons: * Old or improperly mixed fuel could be the cause. Drain the gas tank and add fresh fuel mixture. * The carburetor may need adjustment. Adjust it according to the Carburetor Adjustments section or take it to an authorized service dealer for an adjustment. * A fouled spark plug can lead to power loss. Replace or clean the spark plug. * A plugged spark arrestor might be the problem. Clean or replace the spark arrestor.
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lindsey40Aug 14, 2025
How to troubleshoot a Troy-Bilt TB90BC that will not idle?
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  Jeffrey JacksonAug 14, 2025
  If your Troy-Bilt Trimmer engine won't idle, here are a few things to check: * The air filter might be plugged. Replace or clean the air filter. * Old or improperly mixed fuel can cause idling issues. Drain the gas tank and add a fresh fuel mixture. * The carburetor may be improperly adjusted. Adjust according to the Carburetor Adjustments section or take to an authorized service dealer for an adjustment.
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bbrownAug 20, 2025
Why is the cutting line advancing uncontrollably on my Troy-Bilt TB90BC?
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  Nicholas CaldwellAug 20, 2025
  If the cutting line is advancing uncontrollably on your Troy-Bilt Trimmer, it may be caused by oil, cleaner, or lubricant in the cutting head. Clean and thoroughly dry the cutting head to resolve this issue.
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Jose AdamsOct 25, 2025
How to fix Troy-Bilt Trimmer that will not start?
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  Zachary DominguezOct 25, 2025
  If your Troy-Bilt Trimmer engine won't start, here are several potential causes and solutions: * The fuel tank may be empty. If so, fill the fuel tank with properly mixed fuel. * The primer bulb may not have been pressed enough. Press the primer bulb fully and slowly 10 times. * The engine could be flooded. Place the blue choke lever in position 3, squeeze the trigger, and pull the starter rope. * The fuel may be old or improperly mixed. Drain the gas tank and add a fresh fuel mixture. * The spark plug may be fouled. Replace or clean the spark plug. * The spark arrestor may be plugged. Clean or replace the spark arrestor. * If the outside temperature is below 40º F, place the blue choke lever in position 3 and pull the starter rope up to 10-15 times. * If the outside tempe...