Fall is here and this is my favorite riding season. Took my 2003 Ultra (45k miles) out for a spin and on way home noticed that the oil gauge was over 60PSI, then would jerk back down to the 40's, and back up to the 60s again...especially if I gave it any throttle input. Idled at 32psi.

Any ideas?

 

Elec or mechanical?

 

Not 100% sure but I would suspect it is electrical on that year.

 

I would test it with a mechanical gauge to confirm the issue.

 

Yep. Gonna have to go pick one up. The bike runs fine so I assume its the gauge...just wasn't sure if this was a common issue.

And I took a look. It is definitely electrical.

 

Thats what I would do. Some of our most expensive equipment has elec gauges. Ill get alarms and flashing lights only to find out 90% of the time its a bad sender. I put a mechanical gauge on my ride for piece of mind.

 

Ok. I put a manual gauge to it and here are the results. Any thoughts?

 

Could be the pressure plunger in the cam plate is sticking.
We've seen it here.
Scott

 

yup,scott beat me to it,thats what I was going to say

 

Well yup. You got 2 highly experienced opinions. Being an 03 with 45k on it, have the cam tensioners ever been looked at? Might be a good time to up grade the camchest.