Making Your Own Oil Cooler Adapter Plate

[saaz]

I still have the rear adaptor for my oil cooler on the bike (Yoshi one). It is a full flow design - all the oil goes up through the cooler then back in again to continue on its original path.

Remember this is a low pressure oil system so it makes sense. Oil pump pressure is only 1.42 psi with plenty of flow.

The factory manual I have shows a full page of the oil system. The GS1100 are probably the same. The main path is: sump, sump filter, oil pump, oil filter/oil bypass, pressure switch,, then it splits off to the transmission/clutch and to the top end/crankshaft.

Perhaps the later maotrs use the bypass passage (those plugs at the front?)

[Hap Call]

Perhaps the later maotrs use the bypass passage (those plugs at the front?)

That bypass is actually on the filter itself. Next time you pick up a GS1100 filter, look at the closed end and you will see a round circle/plate. You can push this in with your finger. It is there in case your filter gets clogged and will not allow oil to flow through the filter material.

Hap

[saaz]

Well how about that! My GS1000 uses the same filter as the 1100 (just different gasket - I have a few spare GS1100 gaskets from when both the GS1000 and 1100 gaskets came with the filters si if anyone in Oz needs any I can mail them). I have never bothered to try push in the end!! After 22 years I must have used a few of them as well.......