– 22 –
2-2-11 SPARK PLUG
Install spark plug to cylinder head.
Spark plug : NGK BMR4A
(CHAMPION : RCJ14)
2-2-12 FLYWHEEL MAGNETO
(1) Put the woodruff key in the keyway of crankshaft.
Wipe off oil and grease thoroughly from the
tapered portion of crankshaft and flywheel center
hole.
(2) Install cooling blower and starter pully to crank
shaft.
M6 x 12 mm flange bolt : 4 pcs.
(2) Install the flywheel to crankshaft.
M6 x 00 mm flange bolt : 4 pcs.
(3) Tighten crankshaft nut with locking pliers
adopted as shown in the illustration.
M14 nut : 1 pc.
Tightening torque
45 - 50 N•m
(450 - 500 kgf•cm)
(32.5 - 36.1 ft•lb.)
Note:
Attach cooling blower to flywheel with
three projections on flywheel adjusted
to three holes on cooling blower.
Tightening torque
4 - 6 N•m
(40 - 60 kgf•cm)
(2.8 - 4.3 ft•lb.)
Tightening torque
Retightening
New spark plug
23 - 25 N•m
(230 - 250 kgf•cm)
(16.6 - 18.1 ft•lb.)
12 - 15 N•m
(120 - 150 kgf•cm)
(8.7 - 10.9 ft•lb.)
