7. CYLINDER HEAD/VALVES
7-9
Mongoose/KXR 250
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)
Remove the two bolts and then remove the
carburetor intake manifold.
Remove the bolt and disconnect the
thermostat.
Remove the two cylinder head bolts.
Remove the cylinder head.
CYLINDER HEAD DISASSEMBLY
Remove the valve spring cotters, retainers,
springs, spring seats, oil seals and valves
using a valve spring compressor.
Valve Spring Compressor E040
Bolts
Intake Manifold
Bolt
Bolt
Bolts
Valve Cotter
Retainer
Springs Springs Seat
Oil Seal
Valve
Spring Compressor
•
Be sure to compress the valve springs
with a valve spring compressor.
•
Mark all disassembled parts to ensure
correct reassembly.
*
Special
Summary of Contents for KXR 250
Page 21: ...1 GENERAL INFORMATION 1 19 Mongoose KXR 250 WIRING DIAGRAM OFF ROAD...
Page 22: ...1 GENERAL INFORMATION 1 20 Mongoose KXR 250 WIRING DIAGRAM ON ROAD...
Page 30: ...2 FRAME COVERS EXHAUST MUFFLER 2 1 Mongoose KXR 250...
Page 66: ...5 FUEL SYSTEM 5 1 Mongoose KXR 250...
Page 85: ...6 ENGINE REMOVAL INSTALLATION 6 7 Mongoose KXR 250...
Page 87: ...7 CYLINDER HEAD VALVES 7 1 Mongoose KXR 250...
Page 100: ...8 CYLINDER PISTON 8 1 Mongoose KXR 250...
Page 109: ...9 DRIVE AND DRIVEN PULLEYS 9 1 Mongoose KXR 250...
Page 123: ...10 FINAL REDUCTION TRANSMISSION SYSTEM 10 1 Mongoose KXR 250...
Page 136: ...11 CRANKCASE CRANKSHAFT BALANCE SHAFT 11 1 Mongoose KXR 250...
Page 156: ...13 BRAKE SYSTEM 13 1 Mongoose KXR 250...
Page 175: ...14 FRONT WHEEL FRONT SUSPENSION STEERING SYSTEM 14 1 Mongoose KXR 250...
Page 194: ...15 REAR WHEEL AXLE SUSPENSION 15 1 Mongoose KXR 250...