Desperately need help with oil passage question.

[Buster Dog]

Jake's correct....I just spent many weeks, days, hours,etc confirming what Jake just stated. I have a 1981 GS1100EX and wanted to add an aftermarket oil cooler. I have seen a 1981 like mine that had the same type homemade plug installed in that oil passage. It forces the oil to by-pass through the oil cooler and then re-enter the oil filter housing on the left side of the engine. The only thing that will happen if you remove the plug is that the oil will not flow through the oil cooler...well, at least not much will. The bad side about this design is if someone removes the oilcooler and doesn't know to remove the plug...well, let's say it won't do the head and valve train much good seeing how they will be starved of oil. I have actually heard of somebody doing this to a GS1100 they had passed down to them from a relative. I found out that I needed to buy a oil filter cover for a 1982 that has the proper "valve" that causes the oil to backup into the by-pass that leads to the oil cooler plug on the right side of the oil filter cover as explained earlier. I hope this helps.

Buster Dog

[Anonymous]

Thanks guys. I found the additional ports tonight, not that I was doubting what Jake stated either, just one of those things that I like to know for myself. You'd think that they would have come up with something a little more "factory" looking then that half a$$ plug.