I'm confused.

Did you put a gauge on it?

What year is the machine?

if with manometer it marks zero. and it is from the year 2018 but it has 40 miles so I wanted to change the oil because it was out of time. and there the pressure light turned on.

Something doesn't make sense. No pressure would quickly turn into a noisy clattering engine and you wouldn't want to run it that way.

Assuming the engine oil level is up to the full mark, you should see some pressure. It makes me wonder if you've connected to the correct port (10mm thread I believe).

Perhaps pictures of the dash light in question, the oil pressure switch, and the location where you installed the gauge would help to verify that we are on the same page.

If you can't get a reading on the gauge, I would take to a mechanic and have them take a look at it and run the test.

Something doesn't make sense. No pressure would quickly turn into a noisy clattering engine and you wouldn't want to run it that way.

Assuming the engine oil level is up to the full mark, you should see some pressure. It makes me wonder if you've connected to the correct port (10mm thread I believe).

Perhaps pictures of the dash light in question, the oil pressure switch, and the location where you installed the gauge would help to verify that we are on the same page.

If you can't get a reading on the gauge, I would take to a mechanic and have them take a look at it and run the test.

[2015 Z Force 800 53/Trail EPS]

OK, what was the actual oil pressure at idle, then at 3K then at 5K?

So far so good. What did you use for a gauge?