Suzuki DF 25 Service Manual page 251

CHECKING PROPELLER SHAFT THRUST PLAY
After adjusting all gear positions, measure the propeller shaft
thrust play. if not within the following specification, a shim ad-
justment is required.
Propeller shaft thrust play : 0.20 – 0.40 mm
NOTE:
Maintain the forward gear thrust washer at standard thickness
(2.0 mm) and adjust only the reverse gear thrust washer with
shim.
Measurement step:
1. Assemble gear adjusting gauge to the propeller shaft.
09951-09511 : Gear adjusting gauge
2. Push propeller shaft inward.
3. Hold shaft in and set dial gauge pointer to zero.
4. Slowly pull shaft outward and read the maximum thrust play
on the dial.
• If measurement is more than specification, increase re-
verse gear thrust washer thickness.
• If measurement is less than specification, reduce reverse
gear thrust washer thickness.
(0.008 – 0.016 in.)
LOWER UNIT 10-27