TOHATSU BFT 250A, Service Manual

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14-27
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CYLINDER HEAD
EXPLODED VIEW
Apply oil to the following parts when reassembling.
Engine oil:
• Lost motion (full face)
• Exhaust rocker arm shaft bolt (threaded part and
seat)
• Valve stem seal (internal circumference)
• Valve adjusting screw (threaded part)
• Valve adjusting lock nut (threaded part and seat)
Molybdenum disulfide oil:
• Camshaft (journal and cam)
• Rocker arm shaft (outer circumference)
• Valve stem (sliding surface)
CAMSHAFT
THRUST
COVER
BOLT (8 x 28 mm) (2)
INTAKE VALVE SPRING
INTAKE VALVE SEAL A
VALVE SPRING SEAT
INTAKE VALVE GUIDE
LOST MOTION
INJECTOR BASE
NUT (8 mm) (2)
DOWEL PIN
(10 x 12 mm) (2)
DOWEL PIN (2)
INTAKE VALVE
CYLINDER HEAD
OIL SEAL (39 x 53 x 8 mm)
ENGINE HANGER
BOLT
(8 x 20 mm) (2)
DOWEL PIN
(HOLLOW PIN: 6 x 10 mm) (2)
VALVE KEEPERS
SPRING RETAINER
EXHAUST VALVE
SPRING
VALVE SPRING SEAT
EXHAUST VALVE GUIDE
GASKET
EXHAUST VALVE SEAL B
ROCKER ARM SHAFT BOLT (IN SIDE: 8 x 30 mm) (6)
ROCKER ARM SHAFT BOLT
(EX SIDE: 8 x 40 mm) (4)
O-RING
(48.5 x 2.4 mm)
EXHAUST VALVE
24 N·m (2.4 kgf·m, 18 lbf·ft)
24 N·m (2.4 kgf·m, 18 lbf·ft)
ROCKER ARM
ASSEMBLIES
SPARK PLUG