How to perform a cold compression test - V-Twin Forum
2008年1月27日 · What is the proper way to perform a compression test on a cold engine? Also, about how much lower would it be than the compression on a warm engine? On my bike, here is what I do. I take out the EFI fuse, and I unplug the coil. I remove both spark plugs, and then put the compression tester in one of the spark plug holes.
How To Do A Cranking Compression Check On A Harley Davidson ... - YouTube
A detailed video on how to do a cranking compression check on a Harley Davidson Motorcycle.
How to Perform a Compression Test on a Harley Davidson : Pro …
2020年7月20日 · Doing a compression test is a great way to narrow down possible issues with your machine. If you are experiencing a lack of power or looking to isolate an issue down to a particular cylinder a...
Harley Motorcycle Compression Test | Fix My Hog
Start your test by removing both, your front and rear spark plugs. Install a compression gauge onto your front cylinder. Hold your throttle wide open to allow for as much air as possible to …
Simple way to test electronic compression releases?
2025年1月15日 · The easiest way to run a compression test with the ACR's disabled is to do it with the ignition OFF. The way you do that is by jumping battery power from the positive lead at the starter to the solenoid.
Compression. - Harley Davidson Forums
2013年10月25日 · I did a test on the bike and it read 190 PSI for the front cylinder and 192 PSI for the rear. Have the people who printed the manual missed the 1 on their claim of 90 PSI or would the 90 be the minimum you could get away with.
103 Engine compression help - V-Twin Forum
2014年8月10日 · At my shop, a part of a tune up is a compression test. I hope this is helpful. With the throttle blocked open and the ACR relay pulled, you should have 175lbs minimum. I'm not a service mech. but you have a good start with Thermodyne's post. Lock your throttle open. Pull the fuse for your fuel pump. If you have ACR pull the relay.
2000-2001 ultra classics - V-Twin Forum
2013年4月20日 · One guy had a 2001 and the rest were 2000's. The problems occurred anywhere from 25K to 70K miles. I had two that failed, a Road King at 25K and an Ultra that failed at 50k. I am not a Harley Mechanic, but I do all of my own work on my bikes. This has been my experience with the 2000 Harley's .
Piston compression psi help - Harley Davidson Forums
2014年8月10日 · Hey I need some help finding the correct PSI reading when doing a compression test on a 2012 wide glide with a stock unmodified 103 engine. Anybody know what it is? All the searching I've done here and other places has only given me PSI readings on modified engines.
No fuel to cylinder: Injector or electrical? - Harley Davidson Forums
2010年8月3日 · Check voltage at rear injector plug. Node lights are commonly used for diagnostics, but a volt meter will work as well. If Plug has power, then compression test cylinder. If Plug has power, and compression is fine, then suspect injector.