1997 Honda CBR 600 F3 knocking sound coming from the engine

Possibly a blown fuse?
Check for 12Volts at the switch.

i have a '98 f3 stuntbike. they are very tempermental with air intake. make sure your air filter is clean and induction to the engine not clogged.

Easiest way to find out is fill some petrol into tank and see where it drip out from. Good enough help?

It sounds like the cable to the the speedo and the tach may need to be replaced. check them and replace if needed.

I presume you mean exhaust, if that's the case no they don't, you can fit a straight through (race pipe) and it will run ok, you may find that the midrange power drops a bit in this case you will need to have the carbs rejetted (dynojet).

hi,i dont know a lot about this particular bike,but,as with any high revving sports bike you will need to keep the revs up before changing gear,an 883 sportster has a lot more torque than your bike and you can "short shift "them and let the torque do the work,however on a cbr i think you will need more rpm before you shift as they dont have the torque of your old harley,a friend of mine has an r6 yamaha,that thing revs out to nearly 17000 rpm he doesnt change untill about 9 or 10000 rpm,from memory your bike should be capable of nearly 60mph in first gear..hope this helps...cheers

check to see if fuel switch is on...when was the last time carbs were checked?

40mm slack up and down middle of chain. not tight when sitting on bike. loosen axle ajust both sides evenly, retighten axle install new split pin

It should be 1 down and 5 up. About the 5500rpm at 85... That sounds about right with stock gearing. Let me know if i can help further. Good luck and happy holidays. Jay