Slower start after PC III
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Cruiser
Joined: Sep 2006
Posts: 237
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From: San Antonio, TX.
Slower start after PC III
Just installed PC III on my RKC. Bike is running good but, it starts just a little slower than before. I really enjoyed that instant start that it had before. Has this happened to anyone else? I need to put more miles on it before a dino, maybe it will get better then.
Road Captain
Joined: Jun 2006
Posts: 749
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From: Fort Worth, Texas
RE: Slower start after PC III
Unfortunately it's a common condition....not really a problem.....something about the PCIII letting the motor spin a few times before starting....lots of talk about this several months ago.....no harm done, just a perception of hard starting
Advanced
Joined: Jul 2006
Posts: 65
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RE: Slower start after PC III
I read a post the other day about a dyno tuner who hits the starter button immediately after turning on the ignition without waiting for the injectors to prime. He said there is no delay this way, and the bike would crank up as quickly as before installation of the PCIII. I have no idea if this does any damage or even if it's true.
Road Warrior
Joined: Oct 2005
Posts: 1,482
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From: BOSTON originally / APPLETON WI now
RE: Slower start after PC III
I've got a PCIII and the engine starts BEFORE I can even let go of the switch.
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Key: Screamin' Eagle Triple Platinum Plugs
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Cruiser
Joined: Nov 2005
Posts: 176
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From: Clarksville Tennessee
RE: Slower start after PC III
Here is a long post on your problem on this forum.
Hard starting with PCIII
I had a 06 RK Custom that was doing this. After talking to the techs at power commanderI sent it back to them. I am now running a SERT.
Neil
Hard starting with PCIII
I had a 06 RK Custom that was doing this. After talking to the techs at power commanderI sent it back to them. I am now running a SERT.
Neil
Road Master
Joined: Feb 2006
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From: SoCal
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RE: Slower start after PC III
ORIGINAL: mrgrinch
I read a post the other day about a dyno tuner who hits the starter button immediately after turning on the ignition without waiting for the injectors to prime. He said there is no delay this way, and the bike would crank up as quickly as before installation of the PCIII. I have no idea if this does any damage or even if it's true.
I read a post the other day about a dyno tuner who hits the starter button immediately after turning on the ignition without waiting for the injectors to prime. He said there is no delay this way, and the bike would crank up as quickly as before installation of the PCIII. I have no idea if this does any damage or even if it's true.
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Road Master
Joined: Aug 2006
Posts: 825
Likes: 93
From: Fuquay-Varina, NC
RE: Slower start after PC III
This is happening on my '07 Ultra and here's my findings. On the newer fuel injected bikes you would normally wait for the engine light to go out b4 you start the bike. When the light goes out the bike has done it's diagnostics and the injectors are ready to go. What is also happening is a relay kicks in that cuts power for several sub systems along with the PC. The push of the starter switch restores power to the sub systems along with the PC. The PC needs a few seconds to do it's thing when power is restored (pushing the starter button) causing the starting delay.
I have proven this simply by installing my PCIII and observing the lean/rich LED's on the unit. I turn the ignition switch on, the LED's blink back and forth, the relay kicks in along with the engine light going out and the LEDS go out on the PC. I hit the starter button the PC comes back to life and once the LED's stop flashing it starts up.
This will also cause an issue if you are trying to communicate with the PC without the 9 volt battery while it is on the bike. All comm will be lost after the engine light goes out.
I have proven this simply by installing my PCIII and observing the lean/rich LED's on the unit. I turn the ignition switch on, the LED's blink back and forth, the relay kicks in along with the engine light going out and the LEDS go out on the PC. I hit the starter button the PC comes back to life and once the LED's stop flashing it starts up.
This will also cause an issue if you are trying to communicate with the PC without the 9 volt battery while it is on the bike. All comm will be lost after the engine light goes out.
