Yamaha FZ16 Carburetor Problem, Power loss and sounds from exhaust

Arjun Chandran

Master Sergeant Rank 13
Dec 30, 2016
655
17,800
India
I bought a second-hand Yamaha FZ16 2014 model and since then there was slight missing and random power loss when I reduce the throttle and increase it. And occasionally there is a small exploding kinda sound from the exhaust. I showed It to a mechanic and he said the carburetor is fine and fixed the issue but it felt the same. Then took the bike to an authorized service center and after checking they told: "the choke cable inside the carburetor has rusted and is stuck, the carburetor should be replaced and cant be fixed".
Has any of you faced this issue? is there any workaround?
 


Arjun Chandran

Master Sergeant Rank 13
Dec 30, 2016
655
17,800
India
Just to let everyone know i was able to fix the issue with the carburettor. The choke piston was stuck inside the carburettor and was in an on state. So it's caused a serious mileage drop and power loss under 4000 RPM. I took it the nearest lathe and got it pulled out then replaced the choke piston and choke cable with a new one.

That solved the missing issue but there is a pop sound from the exhaust which i suspect is due to carbon deposit on the cylinder head.
 

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