Drive Levers - Placement Adjustment - Briggs & Stratton FW25 series Setup Instructions

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To increase the level of responsiveness:
1. Park the mower on a flat level surface such as a concrete
floor. Depress the neutral return pedals to return the
transmissions to neutral, disengage the PTO, engage the
parking brake, turn ignition switch to OFF, and remove the
key.
2. Loosen the wing nut (E, Figure 21) that is tightened against
the black adjustment knob (F).
3. Turn the adjustment knob clockwise until the desired level
of responsiveness is achieved.
4. Measure the length (C) of the spring (D) and record this
measurement. This measurement cannot be shorter than
6-1/2" (16.5 cm).
5. Tighten the wing nut against the black adjustment knob.
6. Repeat this process for the other side of the mower. The
measurements for both drive lever spring assemblies must
be the same.
To decrease the level of responsiveness:
1. Park the unit on a flat level surface such as a concrete floor.
Depress the neutral return pedals to return the transmissions
to neutral, disengage the PTO, engage the parking brake,
turn ignition switch to OFF, and remove the key.
2. Loosen the wing nut (G, Figure 21) that is tightened against
the black adjustment knob (F).
3. Turn the adjustment knob counter-clockwise until the
desired level of responsiveness is achieved
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4. Measure the length (C) of the spring (D) and record this
measurement. This measurement should not be longer than
7-1/4" (18.4 cm).
5. Tighten the wing nut against the black adjustment knob.
6. Repeat this process for the other side of the mower. The
measurements for both drive lever spring assemblies must
be the same.

Drive Levers - Placement Adjustment

There should be approximately 1" (2.54 cm) of clearance
between the handle bars and the drive levers when the forward
speed control lever is in the neutral position.
To adjust:
1. Park the unit on a flat level surface such as a concrete floor.
Disengage the PTO, engage the parking brake, turn the
ignition switch to OFF and remove the key.
2. Loosen the jam nuts (A, Figure 22) that are located on the
top and the bottom of the reversing linkage rod.
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3. Adjust the linkage rod.
• To increase the amount of clearance between the
handle bars and the drive levers, turn the linkage rod
(A) counter-clockwise.
• To decrease the amount of clearance between the
handle bars and the drive levers, turn the linkage rod
clockwise.
4. Once the measurement of 1" (2.54 cm) is achieved, tighten
the jam nuts against the linkage rod ball joints.
5. Repeat the process for the other side of the unit.
Note: Both drive levers should be adjusted equally.
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