-
1995 xri 200 155 comp on 5, 95 on top right
I am lookin g into a purchase, I had a compression test done, it has 115 on all cyulinders except the top right has 95. Is there a common isue here, or just a couple things it could be. I know the best answer is removingf the head and checking the cyinder, just trying to get a ball park here.
-
Mercury 3L/4 Stroke/Verado Moderator
If you would, please take a moment to review the Announcements at the top of the Forum, and be sure to provide the Required Info when posting. Thanks!
#1 compression low: Was it the FIRST or LAST cylinder tested? A weak battery is about the only "common" cause. Otherwise it's likely mechanical, and you'll need to investigate to see what caused the problem (gasket, ring, wrist pin clip, locating pin, lean-run, etc).