21-2
Troubleshooting
Engine Lacks Power
1. Raise wheels off ground
Wheel don’t
Brake dragging
and spin by hands.
spin freely.
Worn or damaged wheel bearings
Wheel bearings need lubrication
2. Check tire pressure.
Pressure low.
Punctured tire
Faulty tire valve
3. Check clutch slipping.
Engine speed not
Faulty clutch spring.
changed when
Worn clutch disk/plate
Clutch is released
Wraped clutch disk/plate
4. Accelerate lightly.
Engine speed
Carburetor choke closed
doesn’t increase.
Clogged air cleaner
Clogged jets
Clogged fuel tank breather
Clogged muffler
5. Check ignition timing.
Incorrect.
Faulty CDI unit
Faulty pulse generator
Flywheel is not installed properly
6. Test cylinder compression.
Too low.
Worn cylinder and piston rings
Leaking head gasket
Improper valve timing
Faulty valve seat
7. Check valve clearance.
Incorrect.
Improper valve adjustment
Worn valve seat
8. Check carburetor for clogging
Clogged.
Clean
9. Check spark plug.
Fouled
Clean
or discolored.
Spark plug of incorrect heat range
Wheels spin freely.
Wheels spin freely.
Pressure normal.
Engine speed increased.
Correct.
Normal.
Correct.
Not clogged.
Not fouled or discolored.
Engine speed increased.
Summary of Contents for DAYSTAR -
Page 1: ...SERVICE MANUAL...
Page 22: ...MEMO...
Page 38: ...Fuel System 4 0...
Page 55: ...MEMO...
Page 56: ...6 0 Clutch Gearshift...
Page 69: ...7 0 A C Generator Starter Clutch...
Page 78: ...MEMO...
Page 79: ...8 0 Cylinder Head Valve...
Page 96: ...MEMO...
Page 97: ...9 0 Cylinder Piston...
Page 105: ...10 0 Crank Case Transmission Crankshaft 1 2kgf m 12N m 1 1kgf m 11N m...
Page 126: ...12 5 MEMO...
Page 127: ...13 0 Front Wheel Front Fork Steering...
Page 149: ...14 0 Rear Wheel Rear Brake Suspension...
Page 161: ...15 0 Hydraulic Brake...
Page 173: ...16 0 Charging System Battery Regulator Rectifier Fuse Battery AC Generator...
Page 181: ...17 0 Ignition System A C Generator Spark Plug Ignition Coil CDI Unit...
Page 188: ...MEMO...
Page 189: ...18 0 Electric Starter Starter Motor Battery Starter Magnetic Switch...
Page 196: ...MEMO...
Page 197: ...19 0 Lights Switches Horn...
Page 208: ...20 1 Wiring Diagram 20 Wiring Diagram 20...
Page 209: ...MEMO...