Hi, I have Yamaha FZ of 2010 आदर्श, actually it used to give mileage of 35kmpl but from the last service it started to give mileage of 25kmpl. what would be the reason? Please help me.
Fuel wastage is the only reason as the bike may not be able to burn all of the fuel being supplied to the engine. You can ask the mechanic for proper tuning of the carburettor and check the mileage again. You can even get your engine reworked if the problem still persists.