Yamaha FT50C Service Manual page 252

TRBL
SHTG
(Lubricating system)
Check the engine oil level.
At specified
level?
Yes
Check the oil pressure.
Out of specifi-
cation?
No
Check the oil pressure switch.
Good condi-
tion?
Yes
Replace the CDI unit.
9-9
Troubleshooting
No
Add engine oil to the correct
level.
Yes
Check the oil pump for debris or
wear.
Clean or replace the respective
parts.
No
Replace the oil pressure switch.
Debris or
wear?
Yes
Check the oil pas-
No
sage.
62Y5A11