Serpento FORZA 150 Manual De Usuario página 123

60
Trouble
No fuel in carburetor
Sparking normal in high voltage cable and
no sparking in spark plug
Normal sparking to spark plug, poor cylin-
der compression
Cause
1.
2.
No fuel in fuel tank
3.
Fuel tank valve not opened
4.
Fuel tank valve clogged
5.
Float chamber needle valve hole clogged
Main jet orifice clogged
1.
2.
Oil stained spark plug
3.
Broken spark plug magnetic core or broken electrode
4.
Carbon deposit in spark plug electrode
Incorrect spark plug gap
1.
2.
Leaking cylinder head gasket
3.
Loose spark plug
4.
Seized piston ring
5.
Excessively worn piston or broken piston ring
6.
Serious cylinder wearing
7.
Leaking intake pipe
Damaged crankshaft sealing
Remedy
1.
2.
Refueling
3.
Open the valve
4.
Clean fuel tank and fuel tank valve
5.
Disassemble and clean the carburetor
Disassemble and clean the carburetor
1.
2.
Remove, clean and dry it
3.
Replace spark plug
4.
Clean out carbon deposit
Adjust the gap.
1.
2.
Tighten screw or replace gasket
3.
Tighten spark plug
4.
Clean off carbon deposit in piston ring and ring groove
5.
Replace piston and piston ring
6.
Replace cylinder body
7.
Tighten or replace rubber ring
Replace sealing