Honda — New Bike More Complaints

Mine is a new Honda CB Unicorn bought on 17.06.2013. My bike only reached 4200Km & Just 2 Services finished. From the Day I bought my bike a complaint remains, still it remaining. I have done the 2 Services under different Dealor's due to improper servicing, Still the complaints remain. Not even constant Mileage is there, I don't even passed above 60 Km/Hr in my bike, sometimes 35 & maximum to 50Km/Ltr. From the beginning the Spark Plug is complaint, like a kind of Leakage. I always complaint about this, they just clean it up give back, after two three days same again happens. Also Front Shock Absorbers not working properly, Engines Sounds High comparing to its normal. RPM become raised after a riding some time (My brother & friends of mine had the same bike, they don't have this complaint) Please do the needful & Please Help me out here. We can't go for every services to Different dealers expecting they will fix everything.( Still not )