How can I determine if there is a clog in the pump's oil line?

A clog in the oil cooler or oil tubing, prevents the proper circulation and can cause many problems.

To determine if there is a clog, check the temperature at the oil tubing coming from exhaust box, down the back end to the round oil cooler.
The temperature taken at the oil tubing should be about the same (+- 10 degrees) as the temperature measured at the side of the exhaust box.

If there is a big difference in the 2 temperatures, it may indicate there is a clog.