Salam All friendz... I am suffering from a kind of problem i have noticed that when i refill petrol and ride exactly after that it gives me 60-70 km per litre but when it is parked for 3 or 4 days it gives me 10 or 20 km per litre ..today my bike tank was fully empty so i decided to diagnose the problem the problem was in the petrol cap maybe i blow air in the pipe which is underneath the tank of bike..all the air escapes from the petrol cap is it normal ?..or petrol cap should have airtight??
