Yamaha MBK XMAX 2014 Service Manual page 345

The engine oil change indicator fails to come on.
1. Check the entire signaling system
wiring.
Refer to "CIRCUIT DIAGRAM (for
YP125R)" on page 8-23 and "CIR-
CUIT DIAGRAM (for YP125RA)" on
page 8-25.
OK ↓
Replace the meter assembly.
NG →
Properly connect or replace the wire har-
ness.
8-32
SIGNALING SYSTEM