This was started around one month before. My bike was 2 year old and crossed 35k KM. My daily ride were total 70km to office and back.Usually I'll ride between 70-90 km/hr in the NH. While i try to suddenly accelerate, the bike shows missing. Missing starts from the 7k rpm in every gear. While we keep the full throttle, it feels like the engine switched off for 1 second and it will back on life and starts to fly, this will repeat if engine were above 7K rpm. i have no idea what is the issue with the bike now.i tried acceleration in different modes in the bike(economy,power and off mode too) and fuel from different pumps and xtra premium petrol also.
Earlier the bike easily cross 110 km/hr and even i reached a speed of 126km/hr.I had done all service in ASS
at every 2500km till 30K km. After that i didn't went ASS
.I tried Agip 4 stroke synthetic oil. Oil change was done at local work shop, also changed the oil filter, which bought from ASS
.After filling AGIP oil, bike started to show high compression and refused to move more than 90km/hr. I had changed this synthetic oil which only used to run less than 1k to ordinary Castrol oil.Bike got the usual smoothness back, but the missing problem started to show above 90km/hr or above 7k rpm in any gear
I dint changed the plug till now and never cleaned the carburetor. Plug never showed any problem while starting.Once i found petrol leak through the overflow tube in the carburetor and it was solved after riding some Km.
i need your help to solve the issue. I suspect plug(current problem?), oil and carburetor(corrosion or dust particles in fuel line?). please correct me if any other thing need to check.