Bought Gladiator. Review on Yamaha Gladiator

At last I got my Glady and it is Wonderful riding it. And I cannot juz control myself to ride it so slow and I have to ride it under 50kms till I cross 1500Km's. When I got my vehicle with the extrafittings I fixed the Petrol lock so that no body can steal petrol from my bike. But from then my bike started giving me jerks in slow speeds and I worried a lot about it and called my frnds who ever have bikes and told them this and they told that it would be because of improper flow of petrol from the petrol lock and first thing I did is removed the lock and replaced the original petrol tap that came with the bike and it is reduced but not eliminated completely.

Please give some tips to maintain ny bike properly and since it is balck color it looks dusty and I feel that it is very hard to maintain it. And this is my first bike in my life so I dont have much knowledge about it. And about mileage I dint calculated as the new bike wouldn't give more than 40 to 45 I believe and I shift the gears a lot so please give me some tips to reduce the gears usage and to maintain it well I am totally confused and the main thing is I will use the bike only in week ends as I am working in night shifts in one of teh call center.