Yamaha MX250 2016 Owner's Manual page 43

4. Check the fuel system.
a. Check the fuel level and add fuel if the fuel
level is low.
b.
Check if the fuel cock lever is ON.
c.
Check the fuel line, carburetor and air filter
clogging.
Clean or replace if they are clogged.
d.
Check the foreign matter in fuel cock. Clean
the fuel cock.
Troubleshooting
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