Download MTD 25cc Specifications

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P25 Series of Engines
NOTE: The recoil pulley assembly consists of three
parts, but it is serviced as one assembly. The
three parts are: the inner pulley, the starter
assist (accumulator) spring, and the outer
pulley. See Figure 6.6.
NOTE: When the recoil rope is pulled, it rotates the
outer pulley, winding-up the starter assist
spring. When the spring accumulates
enough force to over-come the compression
of the engine, it releases its energy, spinning
the inner pulley and the flywheel rapidly. This
allows the operator to pull the recoil rope
slowly, yet still generate enough cranking
speed to start the engine.
NOTE: In the starter housing, there is an enclosed
recoil spring. If the Starter rope failed to
retract, carefully remove the enclosed recoil
spring for inspection. Otherwise leave the
enclosed spring in place. See Figure 6.7.
Figure 6.6
Enclosed spring
NOTE: the hook on the end
of the spring seats in this notch
Figure 6.7
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