Tanaka TBC-420PF, Service Manual

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6. ENGINE SIDE
6-1 Recoil Starter System
1) Remove recoil starter body assy from unit.
2) Pull starter handle, then hold rope reel and pull starter rope out
from ropoe reel. Fig. 15
3) While holding rope reel, let recoil spring unwind slowly. Then
remove the holding screw from the center of the recoil body Fig. 16
Caution: When removing starter pully or starter reel, The recoil spring may
fly out. Eye/Face protection is recommended when replacing recoil spring.
Check for any wear and/or damage on the individual recoil parts (rope
reel, recoil spring, starter rope, damper spring, cam plate, spring
case assy. , ect.) and replace as necessary. Fig. 16
4)
5) When assembling the recoil spring to the recoil body,
insert hook of recoil spring into the groove within the
recoil starter body. Fig. 17
NOTE: Be sure to install recoil spring so shape spring winding is
clockwise from the center to out.
NOTE: Never disassemble Spring Case Assy. You may get hurt.
6) Check for wear and/or damage to the starter pawl and spring
on the starter pulley and replace as necessary. Fig. 18
6-2 Checking Air Gap
1) Check if the gap between the ignition coil and the rotor is 0.3 mm
(With two 0.15 mm thickness gauge’s)
2) If the measured gap is not 0.3 mm, adjust the gap to 0.3 mm using
the rotor gap thickness gauge on both cores.
Rotor gap thickness gauge
020-29371-14 TBC-550/DX/600
NOTE: The screws must be fastened in
O
1
O
2
to
order to prevent
the air gap from widening.
NOTE: Never rotate magneto rotor clockwise to avoid recoil starter
damage when it is installed.