I need a mechanic to fix my bike's starting problem....dhaka start he...runs perfectly fine...but ignition se start nahee hotiii...if u drive for some kms and than park..it starts immediately but after few hours or if u fail for the first ignition, it rotates the engine but no ignition ...i have changed the plugs, set the tappets, battery is ok.....someone was telling me that i need to service the carburator or add new slow jet and fuel kit.....need expert advice........