My bike smokes under load. 165 io 185 psi compression.

150-165 PSI--dry 165- 175 wet
low is 100 psi there should not be more than 10% between adjacent cylinders
compression taken with throttle held wide open for max air flow
Dry reading is taken after stopping or standing for while
wet is taken at each cylinder immediately after 3 squirts from an oilcan is put in each cylinder
that seals off the rings to show if there is a ring problem

have a wet and dry compression test done on the engine
compression pressure should be around 150-165 psi with a variation between adjacent cylinders or not more than 10%
If the compression is down to say 120 psi wet then the problem will be a worn engine
the smoke is there but the cat converter is doing its job and burning it off

go google -type in compression p[ressure for chev 3.1 engine . There will be pages of detail.
normal pressure can be expected to be around the 160-165 psi mark a used engine in good condition will be around 145 -150 psi anything around the 100 psi is a problem

do a compression test first, that will give you an idea if the engine is still good. it should be between 185 to 213 psi with a maximum difference of 28.4 psi under or over. this sounds like the compression is in the pan and not in the cylinders.

http://www.newlaptopkeyboard.com

ALL CYLINDER MUST BE WITHIN 5% OF THE HIGHEST READING, THE COMPRESSION SHOULD BE AROUND 165-170 PSI, SO IF THE HIGHEST CYLINDER IS 165 PSI THEN ANY CYLIMNDER THAT IS 5% LOWER THAN THAT READING HAS A PROBLEM.

the oil in the crankcase creaps up on the inside of the engine when set on the side stand.(usually the left side smokes) Try parking on center stand.lots of older bikes do this.

How can i help? God Bless

125-185 psi

should be more tahn 110 psi in the cylinder my 85 is capable of going to 155psi and it reached 185 when the rings were new its either the ring gone or valves are leaking i would strip the pot off and inspect buddy