(6)Spark plug
1.Remove spark plug.
2.Check the spark plug electrode and see whether it is burnt out/ carbonized or not.
3.Clean the electrode, if it is dirty.
z
Spark plug specification
NGK: CR6HSA
Gap of spark plug:0.6~0.7mm spark plug
Electrode burnt out
Carbon piled up or not
Washer is distorted or not
Porcelain is cracked or not
(7) Cylinder Pressure
1.Measure it when the engine is warm.
2.Remove the cover at the right hand of the
step floor.
3.Remove the spark plug then place cylinder
pressure gauge. Then fully open the throttle and act
on the starter motor to measure the compression
pressure.
Compression pressure: 11kg/cm
2
at 650 rpm
*
When the compression pressure is too low, check the
following:
a. Valve leakage or not
b. Valve clearance
c. Gasket of the cylinder head is damaged.
d. Piston ring worn-out
e. Piston or cylinder worn-out
*
The cylinder compression pressure is usually too high when there is too much carbonization in
the combustion chamber and the piston tip.
33
Содержание Buddy 170
Страница 1: ......
Страница 11: ...B Chassis Steel ball steering item Front brake fluid Front brake cam 7...
Страница 15: ...5 Wiring diagram 11...
Страница 43: ...1 Lubrication System Lubrication System Diagram PA150 39...
Страница 52: ...3 Engine dismantling A Dismantling engine B lnstalling engine 48...
Страница 63: ...5 Cylinder head and valve A Trouble shooting B The operation data information C Dismantling and installing 59...
Страница 73: ...7 A C Generator A Dismantling AC generator B Installing AC generator 69...
Страница 99: ...F Rear damper 1 Rear damper disassembling diagram 95...
Страница 100: ...5 Engine Management System PGO 2nd stage EMS 1 PGO 2nd stage EMS structure 2 EMS units 3 EMS diagnostic 96...
Страница 132: ...4 Starting system 1 Starting wiring 128...
Страница 134: ...5 Starting clutch Explosive diagram 130...
Страница 137: ...133...