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13
MAINTENANCE AND REPAIR INSTRUCTIONS
To prevent serious
injury, never perform
maintenance or repairs with unit running.
Always service and repair a cool unit.
Disconnect the spark plug wire to ensure that
the unit cannot start.
WARNING:
MAINTENANCE SCHEDULE
Perform these required maintenance procedures at the
frequency stated in the table. These procedures should
also be a part of any seasonal tune-up.
NOTE: Some maintenance procedures may require
special tools or skills. If you are unsure about
these procedures take your unit to any non-road
engine repair establishment, individual or
authorized service dealer.
NOTE: Maintenance, replacement, or repair of the
emission control devices and system may be
performed by any non-road engine repair
establishment, individual or authorized service dealer.
FREQUENCY MAINTENANCE REQUIRED REFER TO
Before starting engine
Fill fuel tank with fresh fuel
Check oil
Page 9
Page 14
Every 10 hours Clean and re-oil air filter Page 15
First change at 10 hours
Every 25 hours thereafter
Every 25 hours
Change oil
Change oil
Clean spark arrestor
Page 14
Page 14
Page 18
10 hours on new engine
Every 25 hours
Every 25 hours
Check rocker arm to valve clearance and adjust
Check rocker arm to valve clearance and adjust
Check spark plug condition and gap
Page 17
Page 17
Page 18
FIXED LINE INSTALLATION
Always use original equipment
manufacturer 0.105 inch
(2.667 mm) replacement line.
Lines other than those
specified may make the engine
overheat or fail.
To install the trimming line:
1. Insert each end of the
replacement line into the
holes on either side of
retention hook (Fig. 19).
2. Push the ends through until
they stick out of the sides
of the head (Fig. 20).
3. Pull the ends through
making sure that the ends
are of equal length and the
middle of the line is
centered between the
insertion holes (Fig. 21).
4. If the ends are not of equal
length, push the longer end
back through the head part
way and pull the shorter
end to compensate.
Repeat until both ends are
the same length.
Fig. 19
Fig. 21