[belligerent]

good evening,

I would like to know if the z650 can start without o2 sensor ? I change the exhaust i broke the sensor, now the z650 won't start. Any idea ?

 

[Tremonte]

DO NOT run this bike without the 02 sensor. It will run in closed-loop during initial warm up, but after that, it searches for the 02 for proper fueling. It should still crank, but you will have very little power if you tried to ride, and will run a high risk of damaging the engine.