Well buddy...sometimes "bad luck hi kharab hota hai"
...I had the same issues when i first bought a discover 125cc 4 yrs back....reached the workshop about 10 times a month for one or the other reasons....
As for the FZ, i was told of the compression that the jerk/choke/blast from the exhaust will continue till abut 3000kms to 5000kms till the engine settles enough carbon. Then only will the bike give enough mileage and better performance...dont know how much its true cos my FZ performs well so far though the choke/blast continues from the exhaust at times especially when the engine is cold.
Few weeks back... i remember i was in about 60-70kmph on a slightly uphill road on almost full throttle. but when i let loose the throttle a bit and tried regaining the same speed and acceleration, the engine did not respond instantly. When i told about this problem, the mechanic told me that it is due to compression (dont exactly know what that means) and also he told me that because of higher torque, the compression will continue for some time only....
well my FZ is now about 3400kms and 4 months old, the perfomance is better, though still at times the blast continues expesially when the engine is cold agian...
Another problem i faced earlier was the front disc break, it sqeaks at many times and the sound goes on and off at will even if I dont apply the break. But for the past few weeks its gone...But sure i do love the squeaks whe the break is applied cos pedestrians gets alarmed and moves quickly to the sides, which they seldom respons to the horn......
so i guess you better get a Yamaha professional mechanic check the bike and ask for suggestions from other FZs owners for more feedback...
The pick up of FZ is good and improving with passing time and kilometers...the throttle though it feels a bit hard is much better, feels like more torque is concentrated on the throttle. When I wheelied with pulsar150 and fz1, I found the response of fz's throttle much better than pulsar even after cluth adjustment (dont know wat other pulsar members views). I had to throttle so much to get the necessary torque to lift the bike unlike with the fz. My pulsar friend felt the same, he found the same ease with FZ....and he could easily wheelie with it though new to FZ.
So i guess you should not feel bad, just get your bike check properly and thoroughly in the yamaha workshop. take another bike and ride with it and then see for yourself how your bike performs....
By the way, how much kilometer have you rode the bike?
