Power Commander / Starter bang
Banned
Joined: Apr 2008
Posts: 2,492
Likes: 10
Can someone help me understand why when I start my bike, if I don't hit the starter switch in less than 3 seconds after I turn the power on I get the dreaded "starter bang"
I have heard that this is a Power Commander issue. And it has gotten worse since I installed the PC.
Is there anything in the mapping that can make this better?
I have heard that this is a Power Commander issue. And it has gotten worse since I installed the PC.
Is there anything in the mapping that can make this better?
Seasoned HDF Member
Joined: Jan 2006
Posts: 11,476
Likes: 3,003
From: Charleston, SC
What happens with the PCIII is, if you wait too long it goes into a diagnostic mode and turns over like 3 times before it starts..The bang you hear is the compensator bottoming out. Unrelated.. However when the PCIII delays the start the compensator is allowed to travel to the end of it's available travel and bottom out causing the bang you hear.
The PCV does nearly the same thing although it remains powered on but still re-initializes after you hit the starter button. The delay before startup is not as long though. In either case (PCIII/PCV) if you hit the starter button right after you turn the bike on and while the fuel circuit is priming, it will start up "quick".
Like you've said, the "Bang" has nothing to do with PCV, its the comp...
lp
Last edited by lp; Apr 9, 2011 at 08:02 PM.
Extreme HDF Member
Joined: Sep 2005
Posts: 11,615
Likes: 50
From: Baton Rouge, LA
Close. The "Delay" is caused because the PCIII actually turns OFF after the fuel circuit primes and when you hit the starter the PC turns back on (power is returned) where it initializes and after about two-three revolutions of the engine, it finally starts.
The PCV does nearly the same thing although it remains powered on but still re-initializes after you hit the starter button. The delay before startup is not as long though. In either case (PCIII/PCV) if you hit the starter button right after you turn the bike on and while the fuel circuit is priming, it will start up "quick".
Like you've said, the "Bang" has nothing to do with PCV, its the comp...
The PCV does nearly the same thing although it remains powered on but still re-initializes after you hit the starter button. The delay before startup is not as long though. In either case (PCIII/PCV) if you hit the starter button right after you turn the bike on and while the fuel circuit is priming, it will start up "quick".
Like you've said, the "Bang" has nothing to do with PCV, its the comp...
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Road Captain
Joined: Sep 2006
Posts: 681
Likes: 1
From: Atlanta
Had the same problem went to a couple of dealerships before I found 1 that didn't say it was normal replaced Stock Comp. with a SE comp, problem solved. When you go to the dealer first ask if they have been having any trouble with the Comp. on your year then complain about the bang and if they agree to look into it request a new style comp (SE) if it needs replacing.
Road Master
Joined: May 2010
Posts: 928
Likes: 1
From: Long Island NY
It is the Compensator most likely, mine did the same and when I replaced it( on my 2010 Ultra ) with the SE it was quiet and ran smoother?
Tell the dealer to listen and he will tell you the same, just make sure you have a Warrantee
Tell the dealer to listen and he will tell you the same, just make sure you have a Warrantee