Thank you. I really appreciate the detail in your reply. Unfortunately it is a diesel (1HD-FTE) and the crank position sensor is toward the back of the block.
I use Sakura Fuel and oil filters on my HDJ100. I changed to Donaldson after using Australia's most common aftermarket filter for many years, but on a trip to Longreach had variable oil pressure (also changed from a Valvoline oil to HPR diesel 15). Check the Filter Supplies website - I found out...