Specifications

P25 Series of Engines
50
5. Remove the clutch rotor with a clutch removal tool.
NOTE: The P25 engines use a rubber clutch. Clutch
tool number 797-00070 can be used to
remove it. See Figure 7.8.
NOTE: The clutch is used to disconnect the drive
shaft for starting. It will engage at 2,000
RPM. This means the trimmer head will spin
at idle speed.
6. Install the clutch rotor.
NOTE: The big washer goes between the rotor and
the starter housing. See Figure 7.9.
NOTE: The small thrust washer goes on top of the
rotor.
NOTE: The side of the rotor with the flange faces
the clutch drum. See Figure 7.10.
7. Torque the rotor to 210 - 230 in lbs (24 - 26 Nm).
8. Slide the clutch drum onto the crankshaft and
tighten it to a torque of 38-40 in. lbs.(4 - 5 Nm).
9. Install the clutch housing and the drive shaft assem-
bly following the steps mentioned earlier in reverse
order.
10. Test run the engine/trimmer before returning it to
service.
Figure 7.8
Part number
797-00070
Big washer
Figure 7.9
Flange
Figure 7.10
Flange
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