Troy-Bilt Bronco 42 User Manual (English)

Questions and Answers:

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Rachel FrazierAug 12, 2025
Why Troy-Bilt Lawn Mower engine fails to start?
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  Lori NguyenAug 12, 2025
  If your Troy-Bilt Lawn Mower engine won't start, possible causes include the PTO (Blade Engage) Lever being engaged (place it in the disengaged (OFF) position), the parking brake not engaged (engage it), a disconnected spark plug wire (connect it), the throttle control lever not in the correct starting position (put it in the FAST position), an empty or stale fuel tank (fill it with fresh gas), a blocked fuel line (replace the fuel line and filter), a faulty spark plug (clean, adjust, or replace it), a flooded engine (crank it with the throttle in FAST position), or blown fuse(s) (replace the fuse).
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Michael StewartAug 15, 2025
Why Troy-Bilt Lawn Mower engine runs erratically?
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  Mark FowlerAug 16, 2025
  If your Troy-Bilt Lawn Mower engine runs erratically, it might be due to the tractor running with the CHOKE activated (deactivate it), loose spark plug wires (connect and tighten them), a blocked fuel line or stale fuel (replace the fuel line and filter, and fill the tank with fresh gasoline), a plugged vent in the gas cap (clear the vent or replace the cap), water or dirt in the fuel system (drain the fuel tank and refill with fresh gasoline), or a dirty air cleaner (replace the air cleaner paper element or clean the foam pre-cleaner).
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Olivia PeckAug 19, 2025
How to fix Troy-Bilt Lawn Mower that will not mulch grass?
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  Beth WrightAug 19, 2025
  If your Troy-Bilt Lawn Mower isn't mulching grass, make sure the engine speed isn't too low by placing the throttle in the FAST position. Also, avoid mulching when the grass is wet or excessively high. If the grass is too high, mow once at a high cutting height, then mow again at the desired height, or make a narrower cutting swath. Finally, check if the blade is dull and sharpen or replace it if needed.
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Logan BennettAug 23, 2025
Why Troy-Bilt Lawn Mower engine idles rough?
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  Robert HowellAug 23, 2025
  If your Troy-Bilt Lawn Mower engine is idling rough, it could be due to a fouled spark plug, which should be replaced and the gap adjusted. Alternatively, a dirty air cleaner could be the culprit; clean or replace the air cleaner element and/or clean the pre-cleaner.
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Deborah OsborneAug 27, 2025
Why Troy-Bilt Lawn Mower engine overheats?
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  Catherine ChristensenAug 27, 2025
  If your Troy-Bilt Lawn Mower engine is overheating, it could be due to a low engine oil level. Make sure to fill the engine with the proper amount and type of oil. Another possible cause is restricted airflow. Clean any grass clippings and debris from around the engine’s cooling fins and housing to ensure proper ventilation.
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Amy MooreAug 30, 2025
What to do if Troy-Bilt Lawn Mower has uneven cut?
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  stephen00Aug 30, 2025
  If your Troy-Bilt Lawn Mower is giving an uneven cut, it may be because the deck is not leveled correctly; perform a side-to-side deck adjustment. Another cause could be a dull blade; sharpen or replace it.
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Megan HoSep 3, 2025
How to stop excessive vibration in Troy-Bilt Lawn Mower?
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  Emily WillisSep 3, 2025
  If your Troy-Bilt Lawn Mower experiences excessive vibration, it could be due to loose or unbalanced cutting blades. Make sure to tighten the blade and spindle, and balance the blade. Another potential cause is a damaged, dull, or bent cutting blade, which would need to be replaced.
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Robert GreerSep 7, 2025
What causes Troy-Bilt Lawn Mower engine to hesitate at high RPM?
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  Kayla HayesSep 8, 2025
  If your Troy-Bilt Lawn Mower engine hesitates at high RPM, the spark plug gap may be too close. Remove the spark plug and adjust the gap to the correct setting.

Troy-Bilt Bronco 42 Specifications

General

Engine Brand	Briggs & Stratton
Deck Height Adjustment	Lever
Number of Blades	2
Mulching Capability	Yes
Bagging Capability	Yes
Side Discharge Capability	Yes
Cutting Width	42 inches
Transmission Type	Automatic
Turning Radius	18 inches
Cutting Height	1.5 - 4 in
Front Tire Size	15 x 6 in
Rear Tire Size	20 x 8 in
Deck Material	Steel
Fuel Capacity	1.36 gal
Fuel Tank Capacity	1.36 gal
Wheel Size	Front: 15 inches, Rear: 20 inches