KZ305 - 305CSR - GPz305 oil flow modification

Kawasaki put those oil line restrictions in a lot of their engines.

The 650/750 fours have them and the 900/1000 fours have them, some are not actual plugs but a purposeful reduction in the oil passage ID's in some spots as cast.

I recently saw this on the one side of the main oil line in the upper case of a 1000, and asked a expert if I should "open" up that hole and the guy just about had a heart attack
He went on to educate me that those restrictions are engineered to increase oil pressure at a measured spot away from the oil pump.

Obviously I did not do it.

It is good to know that this plug is not a artifact of this model motorcycle.

Since the bike is still apart I will punch the plug back out and flip it 180 degrees to obscure the passage like it was originally.

I'm disappointed I had hoped I was improving the bike so it didn't have the early failure blowing cranks as some have reported.
But delighted that you guys provided timely feedback while the bike was still apart so I can undo what I have done.

Appreciate you guys!