[GZ250]

Thanks for the suggestions. I don't feel any trouble in the running or starting. It is running so smooth that I personally do not want to take it to the shop as I do not want them to open the thing and mess up the factory fitting/settings. Luckily the shop where I go is a good place, the manager is a nice and straight person. He just told me that Suzuki recommends otherwise its my choice. From "fine tuning" I meant that if they can clean carb or carbon inside the head as I do not touch even the carb myself. No proper place to do all this work otherwise I can manage.

Actually just in the past few months I was getting less milage per gallon so I was wondering if valves are the reason or some other "fine tuning" as I mentioned.

Personally I do add the gas additive and often buy the expensive Suzuki brand. Clean the spark plug. I also hook up the battery to the battery tender more so in winter and occassionally in summer and it helps.

Yes - 20k our mine. it was new.

Thanks again