I have a 2008 Dec FZ 16.. 60k kms done already. I use only semisyn oil (YAMALUBE)and replace it every 2k kms. M facing some problems these days Need your help

1) the carburator is gone for a toss. the air fule screw was jammed so the mechanic took it to a lath machine to remove it, while he was removing it he damaged the threads of the carburator. I need a replacement for the same.

2) can i replace the carb by using appache 160 carb??. or dose fz and appache use the same type of carb..
i beleave fz uses a bs32 mikuni carburator.

3) can i use appache throttel cabel and throttel body for my byke?? to get the

4) there is a strange noise from the engin when i start it. initially i thought it was the tappit making the noise but when taken to the yam tech for a checkup he said it is fine.. m really confussed. he even mentioned that the plug adapters r leaking . dose this really happen??

plz guys need ur help..