Kawasaki Z125 Forum banner
1 - 4 of 4 Posts

· Registered
7 Posts
Are you still using the 02 sensor? It's possible that you have an exhaust leak before the sensor and it is reading lean and adding a bunch of fuel. It will set a check engine light but you could try unplugging the o2 sensor and drive around, it should put it into a default fuel trim mode.
1 - 4 of 4 Posts