Braaap ST-160 - Page 68

Engine Trouble Shooting
Trouble Possible causes Remedy
No fuel in the carburettor • No fuel in fuel tank
• Fuel tank valve not opened
• Fuel tank valve clogged
• Float chamber needle valve hole
clogged
• Main jet orifice clogged
• Refuel
• Open the valve
• Clean fuel tank and fuel tank valve
• Disassemble and clean the carburettor
• Disassemble and clean the carburettor
No fuel in the carburettor:
Sparking normal in high
voltage cable and no spark in
the spark plug
• Oil stained spark plug
• Broken spark plug magnetic core
or broken electrode
• Carbon deposit in spark plug
electrode
• Incorrect spark plug gap
• Remove clean and dry it
• Replace spark plug
• Clean out carbon deposit
• Adjust the gap
No fuel in the carburettor:
Normal sparking to spark
plug but poor cylinder
compression
• Leaking cylinder head gasket
• Loose Spark Plug
• Seized piston ring
• Excessively worn piston or broken
piston ring
• Serious cylinder wearing
• Leaking intake pipe
• Damaged crankshaft sealing
• Tighten screw or replace gasket
• Tighten spark Plug
• Clean o carbon deposit in piston ring and
ring groove
• Replace piston and piston ring
• Replace cylinder body
• Tighten or replace rubber ring
• Replace sealing
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braaap Motorcycles / ST-160 / ST-250 Owner Manual
10. TROUBLE SHOOTING