1998 fzr 600 yamaha put it in gear let the clutch out nothing happens, pulled the clutch looks new.Do i have to pull the engine to pull the transmissiom out?

Replace the clutch plates or adjust the clutch cable. Try the clutch cable first. What you have is a slipping clutch. It could be that the clutch cable is too tight and so the plates aren't mating fully when you release the lever, or it could be that the plates are worn out. But as it is getting worse it is most likely to be the clutch plates are worn.

With the engine not running can you select 1st gear pull in the clutch lever and push the bike with no difficulty, if you cant, it may be the clutch plates have become stuck together, this can occure from standing for long periods, if you can push the bike it may be the neutrol safety switch, or the side stand safety switch have become faulty, and cutting the bike out as a precaution

This sounds like the clutch has gone out and needs to be replaced, it is very unlikely for the shift fork to get bent on these bikes.

Does the bike have a sidestand switch that cuts the power if the stand is left down? If it does, disconnect it and temporarily join the ends together and try starting....