avenger

so i did everything that it said to do in the intructions above and it idles like a champ and there is definitly a gain in power but it still cuts at like 6500 or so, not as bad but still there, would maybe getting the carbs synchronized help any or getting the valves shimmed?????

I just bought this 1987 fz600 from a friend for 300 bucks, but now im having problems with getting it running right, it was stored in a garage for like 6 to 9 months before i got it. i got a new battery for it and new plugs and wires, flushed the tank and put premium in it. it started up and ran good, than i took it for a ride and it wont go any higher than like 6-7k its like it has a fuel cut and just bogs down. so im wondering if its the carbs that need rebuilt or what i cleaned them and no luck after that. any help would be appreciated jesse