Does anyone know how many lbs of compression a heathy 96 ci should show? Thanks

 

150-200, but its going to depend on your particular build, affected by cam timing, LSA, duration, ect.

175-190 would be right in there!

 

elevation also plays a role. you loose ~3% per 1000'

 

Thanks for the info. Heading into the garage right now to check it out. Got a lot of oil blowing out of the in take and it isn't over filled. Not a good thing.

 

I have 07 Street Glide, stock with stage one, dresser duals, just put 255 cams. Before the work done my compression test was 160 on both cylinders. I'm in Logan, UT about 4500 el. and I have 28000 miles on bike. Pocatello, Id. Harley shop did a dyno last April it was 73HP and 84 tor. Pocie is 4450 el., Mine also has a TFI fuel enhancement on it.
I haven't done a new dyno yet. Too cold here. What do you think about the 160 compression Hog-Doc. You must be near my area.

 

sounds about right.

 

How do you test engine compression? Pull the spark plugs and use something to measure the pressure?

 

If you are trying to determine cylinder compression alone, do a leak down test instead of compression test. Compression test will also take into account starter, or even battery conditions. Leak down test will isolate the cylinder compression only

 

Yes. Use a compression gauge

 

leak down won't tell you what your ccp is just tell you how much leakage you have..

To do a proper ccp you need a fully charged battery, remove the aircleaner hold the Throttle wide open (on carb hold the slide up) ground both plugs and turn it over until the guage stops climbing.