Motorcycle Repair: 2008 Kawasaki Ninja EX250, kawasaki ninja, shop mechanic

Question
Hi, I bought this bike brand new in '08 and never liked it (first bike and found that I am just not a bike enthusiast).  The bike only have 600 miles on it b/c I do not ride it and it stays in the garage (has never even been rained on).  From the onset I was told that these bikes have to be ridden often and need to be 'broken in' (which has obviously not happened with this bike).  Pretty much from the start, this bike will only start w/the choke on and when ever I come to a stop, it will die out UNLESS I turn the choke on real quick.  After the first year, I took it to a bike shop mechanic and he said that since its carburated it does need more attention (need to be ridden more often and broken in).  I would like to sell the bike so that someone can enjoy her, but I don't want to sell someone a lemon.  Do you think that if I continue to ride her for a while the above issues will clear up? Any help you can give me would be really appreciated.  Thanks.

Answer
Well to be honest with you, No. The mechanic was wrong I used to work for Kawasaki for 8 years and this is what may be happening. The main jets are plugging up that why the choke works its trying to get fuel into the intake. The carbs will need to come off and pull off bowls and clean the jets and since it never been really checked over. The mix screws will have a plug pressed in over the screw heads to keep people from messing with them.Drill a 1/8 hole in them be careful not to damage the brass screw below it.Put a sheet meat screw in the hole and use two levers or screwdrivers to pry the plug out. Set the floats and reinstall the carbs. If you can get the bike running and then have a shop syncrontze the carbs to flow properly. Also its time to have the valves checked and adjusted as they should be seated in. As far as break-in, that has already taken place,usually within the first 500 miles. People will usually pay more for a good running bike.Hopefully you will get more back for the sale than what you spend on it to get it running right.