what happened was the cam chain snapped while i was riding and the piston came up and bent the valves so i replaced the cct but with the stock one again cause the macanic is dumb. put knew valves and that in. he buttoned it back up. that was a month or two ago, when i got it i noticed when i was getting on the throttle it was bogging and cutting out at about 6500 rpm and there was a loud clicking and jolting at lower rpm around 3000. so he told me that the valves needed to seat and to run a couple of tanks through it. i took it back cause it was still doing it and he said it was the cdi box. than i came here and seen some guy had a timing problem and it sounded about the same problem as mine, with it hesitating and stuff. so i took it back to him again and he says the timing is perfect. please help.

 

sounds to me like he didnt know what he was doing.Bring it and drop it off and tell him you want it fixed correctly.

 

also sounds a little like a carb problem too. throw away the stock cct's and go with ape( set and forget ones). cant go wrong with them. still costs less than oem.