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7. CYLINDER HEAD/VALVES
(Mongoose/KXR 90) Mongoose/KXR 90/50
Nuts
CYLINDER HEAD
REMOVE
Remove the camshaft. (Refer to the
"camshaft remove" section in the chapter 7)
Remove the carburetor. (Refer to the
"CARBURETOR REMOVE" section in the
chapter 5)
Remove the exhaust muffler. (Refer to the
"EXHAUST MUFFLER REMOVE"
section in the chapter 2)
Intake Manifold
Remove the two nuts and then remove the
carburetor intake manifold.
Remove the cooling fan cover. ( 14-8)
Remove the engine cover bolts and screws.
Separate the engine cover joint claws.
CYLINDER HEAD DISASSEMBLY
Remove the valve spring cotters, retainers, Valve Cotter Retainer Springs Springs Seat
springs, spring seats, oil seals and valves
using a valve spring compressor.
· Be sure to compress the valve springs
with a valve spring compressor.
· Mark all disassembled parts to ensure
correct reassembly.
Special
Valve Spring Compressor E040
Spring Compressor Oil Seal Valve
7-9