Models > BL425-21AK125G965

BL425-21AK125G965 Bolens Tiller

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$35.86
It is an authentic manufacturer-sourced replacement part that i supplied for Craftsman trimmers. The function of a carburetor is to mix the air and the gas into a highly combustible mix before it goes...
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This is a TT screw, but it is also called a fastener, and it is used on multiple outdoor tools. This part is a Tri-Round or Tri-Lobular thread forming screw, it is 0.25 inches in diameter, 0.5 inches ...
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This is a flange lock nut, and it is used with various outdoor tools and equipment. The flange lock nut is all one piece. It has a bottom circular flange and a smaller top hex section. This is a torqu...
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$10.70
This switch is used on a variety of trimmers, blowers and other similar gardening equipment. This switch controls the on and off operations of your tool. Switches have mechanical internals, which degr...
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$3.99
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Common Problems and Symptoms for BL425-21AK125G965

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Will Not Start
Fixed by these parts
Fixing
How to fix it
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Customer:
john from SHARPSVILLE, PA
Parts Used:
753-06253, 753-06190
Difficulty Level:
Really Easy
Total Repair Time:
15 - 30 mins
string trimmer would not start
emptied fuel from tank. pulled off the 2 fuel lines from the carburetor.opened the air cleaner door. removed the 2 torque screws that hold on the carburetor. removed the carburetor and air cleaner gasket. installed new carburetor and gasket and put back and tightened the 2 torque screws. closed air cleaner door and pushed the fuel lines o nto the new carburetor.put some fuel in the tank. started the trimmer. runs great.
5 of 6 people found this instruction helpful.
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Customer:
William from PALMETTO, FL
Parts Used:
753-06185, 753-06190
Difficulty Level:
Really Easy
Total Repair Time:
Less than 15 mins
Carburetor replacement
Removed 2 screws securing the air cleaner and carburetor to the engine using a T25 Torx driver. then removed the throttle cable from the carb.Then removed the o ring gasket from the engine and replaced with a new one and replaced the carb etc. Primed it and fired it up.Runs just like new.
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Customer:
Ricardo from FORT WORTH, TX
Parts Used:
753-06253, 753-06185, 753-06190
Difficulty Level:
Easy
Total Repair Time:
30 - 60 mins
Tools:
Pliers, Screw drivers
Trimmer Would Not Start
The replacement of the carburetor, O-ring, and gasket was simple. I removed 2 screws that held the air cleaner and carburetor in place, swapped them out, and replaced the screws. What took longest was finding a piece of fuel line after breaking one of them. It was brittle after hanging in my garage for several years. I found some in my garage and replaced it. It took a few pulls to get it started, but ran very smooth.

Additional information: rather than mixing my fuel, I purchased 40:1 pre-mix fuel to prevent gunking up the carburetor in the future. I use it in my other trimmer and have not had any issues.
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