gear shifting problem

[roshan]

hello i am from nepal i am having gear problems. the problem is sometimes my bike gear is soo much smooth like butter and i can feel much power in every gears but some times it is hard to change gears and i can feel loss of power is every gears no isses with engine oil it is new can some one tell what is the problem

[Loud]

The gearbox is mechanical, it's unlikely to be an intermittent fault. I'd say it's an electrical problem causing your sparkplug to fail, because that's what I once had and those symptoms are identical. Check your ignition wiring and components.

[Arwon]

Does this happen on longer rides when you go up hills. you have some dcent hills in Nepal and lack of Oxygen is a real issue with motor performance.