【
10-7
】
APPENDIX
Exhaust
Smokes
Excessively
1.
White
smoke
●
Piston
oil
ring
worn.
●
Cylinder
worn.
●
Valve
oil
seal
damaged.
●
Valve
guide
worn.
●
Cylinder
head
gasket
damaged.
●
Engine
oil
level
to
high.
2.
Black
Smoke
●
Air
cleaner
clogged.
●
Main
jet
too
large
or
fallen
off.
●
Spark
too
weak.
●
Incorrect
fuel/air
mixture.
●
Fuel
level
too
high.
Abnormal
Engine
Noise
1.
Knocking
●
CDI
unit
trouble.
●
Carbon
built
up
in
combustion
chamber.
●
Fuel
poor
quality
or
incorrect.
●
Spark
plug
incorrect.
●
Overheating.
2.
Piston
noise
●
Cylinder/piston
clearance
excessive.
●
Cylinder,
piston
holes
worn.
●
Connecting
rod
bent.
●
Piston
pin,
piston
holes
worn.
●
Worn
piston
rings
or
ring
grooves.
●
Combustion
chamber
fouled
with
carbon.
3.
Valve
noise
●
Valve
clearance
incorrect.
●
Valve
spring
broken
or
weak.
●
Camshaft
bearing
worn.
●
Rocker
arm
worn.
●
Worn
tappet
or
cam
surface.
Summary of Contents for DL-702 2008
Page 1: ...FOREWORD INDEX 0 0...
Page 41: ...3 11 BRAKE...
Page 180: ...6 70 ENGINE Install the starter motor...
Page 201: ...7 21 COOLING AND LUBRICATION SYSTEM Engine Lubrication System Chart...
Page 202: ...7 22 COOLING AND LUBRICATION SYSTEM Engine Lubrication System 1 2 3 1 2 3 1 2 3...
Page 203: ...7 23 COOLING AND LUBRICATION SYSTEM 1 2 3...
Page 235: ...7 32 ELECTRICAL SYSTEM Wiring Diagram...
Page 236: ...7 33 ELECTRICAL SYSTEM Wiring Diagram...
Page 237: ...7 34 7 34 ELECTRICAL SYSTEM ELECTRICAL SYSTEM...
Page 238: ...7 35 ELECTRICAL SYSTEM NOTE...
Page 240: ...9 2 PERIODIC MAINTENANCE...
Page 246: ...9 8 PERIODIC MAINTENANCE Intake Side...
Page 247: ...9 9 PERIODIC MAINTENANCE Exhaust Side Side...
Page 270: ...9 32 PERIODIC MAINTENANCE 1 2 3 4 18 19 12 16 17 21 13 14 15 22 23 5 6 7 8 9 12 10 11 20...