Performing a CCP test
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Road Captain
Joined: May 2015
Posts: 627
Likes: 47
From: Nunda
Performing a CCP test
Ok maybe I am tired blind or just frustrated. But i can't find the answer.. Want to do a CCP check today on my 2015 StreetGlide. What all steps do I need to make sure I do.. I kmow I need to pull the fuel pump fuse. What about the plugs? Ground them or is there a fuse I can pull? What about the ACR...
Cruiser
Joined: Aug 2007
Posts: 233
Likes: 5
From: Northern KY
Never done it myself, but this is what I found with a quick Google search.
Pull the plugs, insert the plugs back in the coil wire boots, ground the plugs to part of the cylinder or head(keeps a load on the coil), insert the compression tester in one of the spark plug holes, open the throttle wide open and crank until the pressure reading stabilizes. Then do the other cylinder.
Pull the plugs, insert the plugs back in the coil wire boots, ground the plugs to part of the cylinder or head(keeps a load on the coil), insert the compression tester in one of the spark plug holes, open the throttle wide open and crank until the pressure reading stabilizes. Then do the other cylinder.
Stellar HDF Member
Joined: May 2009
Posts: 2,066
Likes: 97
From: Northern VA
jkloeker pretty much has it. The important thing is your battery is charged. Engine cold, (Cold Cranking Compression). You should pull the fuel pump fuse. Alligator clips on plugs to cylinder heads works okay. Guess you do need to disable the ACR's for your bike. Crank it over until it stops moving the needle.
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Road Captain
Joined: May 2015
Posts: 627
Likes: 47
From: Nunda
Can someone turn the heat on please... It's 12 degrees in my garage... That's the true definition of Ccp.... Thanks for the tips..I have done this plenty of times on my muscle cars... Fuel injected harleys are totally different!
Stellar HDF Member
Joined: Mar 2012
Posts: 2,019
Likes: 599
From: Columbus, OH
Just wondering about the plugs, why put them back in the wires and ground them? I've done hundreds of compression checks over the years but have never heard this before.
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Road Master
Joined: Feb 2010
Posts: 1,237
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From: Albany, OR
Keeps the load on the coils I guess to prevent damage. I guess it's safety overkill as I've never bothered either...
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Stellar HDF Member
Joined: Mar 2012
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From: Columbus, OH
So how you been man? Long time no see. You enjoying that Street Glide?
