As dont have gauge could someone who has please supply oil pressure  of  machine same or similar to 2000.    1450 cc.    At idle please !  Thanks folks.                                       And Tussuck, trying to make contact with you regarding turbo post.  Cheers.

I have a 2000 with a gauge, but don't have a stock oiling system.
Hot idle, you could see as low as 5 psi, maybe lower.
Mine will stay over 15psi hot idle, ~ 35psi at 3000 .

Go to your local parts shop and buy a cheap ($40) mechanical car gauge and measure it.

Yep as speedzer said oil pressure drops of when hot at idle low I’ve seen my evos  drop down 

Volume is more important than pressure.

i use 25/70w 

Thanks for reply,  i think relief upgrade is the answer for my situation.    and buy a gauge.   cheers.

20/50 is like water in da summer esp in a Dyna with only 2.5 ltr oil tank thats under da motor & get's a lot of road heat 

I am not aware of a Harley Davidson oil pressure test that is not performed without having the engine up to running temperature and the specified grade oil hot, also the test RPM is 2000 ,or for early [30's to 60's] engines without tacho's 20mph hot in top gear, the observed pressure read on a gauge will need to comply with the book spec for your model ,this procedure has been in place since 1936 or so.
If the above test is performed and the pressure is within your bikes specs and you have a light on or blinking at idle ,this suggests increased internal bleed in the oil circuit with the pump feed rate too low at idle to extinguish the lamp, as one example of a circumstance to investigate.
Pan ,Shovel and Evo engines can have wildly varying oil pressure cold to hot.

Cheers.

Ert products  mention  a test similar to what you have said on there web site by memory mr hood 

Thanks Perthhog and Hoodeng.    Reason i need oil pressure at idle is for Turbo as one i have is bush as opposed to bearing.   dont want to chance it running without enough fluid.

Install the high volume upgrade kit in the engine to accommodate the bleed for the turbo , much as i don't like them run the gauge permanently as well as the warning light as your circuit is now non standard. If you can , make the oil pressure warning lamp a higher wattage and blinking.The engine will get by on lower oil supply pressure for a while , your turbo won't.