oil pressure

[Bpaccaud]

After 4 year of sleep, my baby take the road for the first time today, i have doing evrything that must to be done for running the engine again and put a new oil pressure sensor, the oil is new my oil pan was cleaning, new filter....

but it seems that the oil prssure is too low (the 1rst quarter of the mano the most of time and when i take to 3000 tr/min nearly the middle but after few time...)

What is the right needle place when all is good?????

2- When i slow down i heard a meow sound from the rear, i suspect the R200 :dead: what can be done to test it???

( there are some new 75W90 oil in it)

Thanks

B.PACCAUD