Engine Pinging!!!!
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Cruiser
Joined: Dec 2011
Posts: 163
Likes: 1
From: Middle GA
Engine Pinging!!!!
A couple of days ago my 2000 UC would not start. After hours of trying to figure out what was wrong, I unplugged my PC and and presto it fired right up and runs good now. BUT today I noticed some pinging in the engine. Does this mean the engine is running too lean? Also do I need to remove my lower fairings now that the weather is warming up to help keep the engine cool?
Extreme HDF Member
Joined: Sep 2010
Posts: 14,744
Likes: 402
From: Phoenix '53, '88, '09 Big Twins
My bike runs 25ş cooler ( measured oil temp) with the lowers on- 105ş ambient temperature. I did 2 22 mile loops at 55 mph, lowers on, lowers off.
The lowers order the air increasing air flow volume and velocity across the motor- other wise the turbulent air off the fender reduces air cooling.
this increased air flow may increase the heat felt by the rider, as more heat is carried away, and past the legs ( blow torch effect)
pinging is caused by lean mixture, too advanced ignition timing, low octane fuel or very high combustion chamber temps ( which can be caused by lean mixture).
Check your PC settings to start if you know the fuel is good
Mike
The lowers order the air increasing air flow volume and velocity across the motor- other wise the turbulent air off the fender reduces air cooling.
this increased air flow may increase the heat felt by the rider, as more heat is carried away, and past the legs ( blow torch effect)
pinging is caused by lean mixture, too advanced ignition timing, low octane fuel or very high combustion chamber temps ( which can be caused by lean mixture).
Check your PC settings to start if you know the fuel is good
Mike
Intermediate
Joined: Mar 2012
Posts: 38
Likes: 0
From: North Dakota
Ya the infamous power commander it sounds like preignition could be part of the problem. Is the bike fuel injected if so there are some options to tune the bike with out using the Power Commander ask your local Harley dealer for a cartridge down load. Magmo fuel injection is not the greatest for performance but can function well if a proper HD download is installed. That being said it would not surprise me at all if there is another after market company out there that has another means of tuning. Power Commander are good in there own right I just dont trust them on Harleys
Intermediate
Joined: Mar 2012
Posts: 38
Likes: 0
From: North Dakota
Pre ignition can also accur by using low octane fuel. Octane is fuels resistance to burn, allowing fuel to get to its full compression before ignition is more ideal. So good 91 oct fual and proper tuning will give you the best of what yer gonna want
Road Master
Joined: Apr 2011
Posts: 1,145
Likes: 98
From: Colorado Springs
I bought my PCIII complete in the box on eBay for $75.00 shipped.
Road Warrior
Joined: Jun 2009
Posts: 1,943
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From: NYC
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Intermediate
Joined: Mar 2012
Posts: 38
Likes: 0
From: North Dakota
Use the Harley super tuner you wont regret it. Sense you said your using the right fuel your just not tuned correctly right now for what your running plain and simple
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Outstanding HDF Member
Joined: Apr 2009
Posts: 2,523
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From: Illinois
A+!!! And DO NOT get a HD download!!! It keeps you running EPA lean. It defeats the whole reason for gettting a fuel management system.