Electric Starting Models (Mx360/Mx400) - Yamaha MX175 Owner's Manual

Troubleshooting
1
44
d.
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
e.
Standard spark plug:
BPR4ES (NGK)
Spark plug tightening torque:
20 N·m (2.0 kgf·m, 15 lb·ft)
4. Check the fuel system.
a.
b.
1
1. OPEN/ON
A MX175/MX200
B MX250/MX300/MX360/MX400
c.
d.

Electric starting models (MX360/MX400)

1. Check the starter motor.
Check the spark plug gap, and adjust it if it is
incorrect.
Replace the spark plug if it still does not spark.
Check the fuel level and add fuel if the fuel
level is low.
Check if the fuel cock lever is OPEN/ON.
Check the fuel line, carburetor and air filter
clogging. 
Clean or replace if they are clogged.
Check the foreign matter in fuel cock. Clean
the fuel cock.