Are new piston rings needed?

Problem with your XJ? Need help with maintenance? Want to show off those new grips? This is the place.
Post Reply
User avatar
New to XJR
New to XJR
Posts: 1
Joined: Fri Apr 28, 2023 1:23 am

(Keep in mind I dont know much about motorcycles)
Im doing compression tests on a beat-up 1992 Seca II that I assume has been sitting for a long time.
3 of the cylinders read 145-150psi. 1 of them originally read 60psi, but with a little bit of oil squirted in the cylinder, it immediately went to 180psi. I tried putting oil in the other cylinders, and they also read around 180psi.

Are the piston rings bad on that cylinder, or could it be they were just stuck from sitting? I tried a compression test a few hours later and got 180 psi again. Will the oil eventually drain in order to test again dry?

Overall, is it worth it to tear it down, or should I move on and get the carbs cleaned up and try to start?

Thank you,
This is how I bought it (see below)
You do not have the required permissions to view the files attached to this post.

This topic has 1 reply

You must be a registered member and logged in to view the replies in this topic.

Register Login
Post Reply