Getting up close and personal
#12
It can make a good size difference in the reading you get.
110 is on the low side.
WP
#13
I held the throttle wide open and that's what I got. I have a couple of things to do in the next little bit but I'm prepared to do it again just for piece of mind. According to what I found out yes it's low. Funny thing is that since I got the bike at the end of May I've put 4500 miles on it and I've added a little short of half a quart. Unless I'm way out to lunch I thought that was pretty good. It doesn't smoke at all.
#14
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Normally you should see around 160.
As long as the 2 cylinders are within 10% of each other you are good.
Why are you worried about the compression is the bike running bad?
#15
The guy I bought it from mentioned that it had been rebuilt at one time according to the guy he bought it from so I did the compression test for my own reference. While it's down for the season I thought I'd dig into it and find out for myself. OK last summer I was on my way home from work and all of a sudden it lost a major amount of power so I pulled over to check it out. I had a small amount of tools in one of the bags and found that it was getting fuel so I checked the plug wires and found that the front cylinder plug wire popped off of the coil. It was a bitch to reach but I got it reconnected and it fired up. I'm not sure if it's my imagination or not but since then at idle it sounds to me like each cylinder isn't firing evenly. It's hard to describe but if you pulled off one plug wire while it's running is what it sounds like. I bought new plug wires and put in new plugs but because the wire fits so loose in the coil I imagine that I need a new coil. Just assuming that that's maybe why it sounds odd at idle. The compression test was only to eliminate that part of it I guess.
#17
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As as side note before I bought this bike I had a 2009 RKC I bought new. Since I've bought this bike my opinion is that it's a much better bike for several reasons. So even though it has a few problems I'd rather invest the time and $ in this bike than to walk away
If your bike has plenty of power for you and runs good then ignore what you got for the compression tester.
Don't forget that your problem might be in the tester rather than in your compression.
#19
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The few problems would have been better worded as things that may need attention. There's no risk of complete failure by any means. Your input on compression is appreciated, I'll leave it alone. I have a few old wiring repairs to correct then I'll finish the tear down for paint.
#20