Lubrication Troubleshooting; Overheating; Seized Piston; Oil Not Flowing Out Of Tank - Honda NU50 Shop Manual

LUBRICATION
TROUBLESHOOTING
•
Excessive smoke and/or carbon on spark plug
1. P<;mp not proP!!rly synchronIzed (excessive oil)
2. Low quality engine oil
Overheating
1 Oil pump not adjusted properly (insufficient oiling)
2. Low qUlllity oil
Seized piston
1. No oil in lank or clogged oil line
2. Pump no! properly adjusted !insufficient oiling)
3. Air in oil lines
4. Faulty oil pump
5. Clogged oil strainer
Oil not flowing out of tank
1. Clogged oil tank cap breather hole
2. Clogged oil strainer
2-2
16
~HONDA
~NU50.NU50M
Date of Issue: Nov_. 1981
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HONDA MOTOR CO., lTD