Ct 70 wierd chirping noise

[383bull]

I have a 1972 ct 70h that makes a wierd chirping noise after the motor runs for about 3 minutes, This is my first H model and I have never heard it on any of my autos, it makes the noise idling and not under power, its just a quick chirp and its random, sounds like its coming from the front of the motor! Any ideas? Thanks

 

[383bull]

Sorry Wrong place, moved it to general discussion

 

[Mini K1]

Has the valve clearances been checked or adjusted? Exhaust leak or cracked from head pipe to cylinder head? Interesting... Perhaps using a stethoscope would help with your troubleshooting. Good luck.

 

[power6994]

Cam chain? (Left side)
Clutch? (Right side)

What affects it? Rpm, clutch in, in gear, under load?

 

[DFull]

Intake noise - check all gaskets there.