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Discussion Starter #1 (Edited)
Hi all.
Today i was speaking with the mechanic who will be doing the alternator swap for me, and he mentioned it wasn't running the best when he ran it. (2005 Brutale 910)
"Lumpy/ rough idle and running too rich" was his comment along with "I can't do much because you have a PC3 fitted"
Am I better off without the PC3 to enable him to get a better tune?
I know they can make a difference on HD's but are they necessary for MV's??

Thanks guys!
 

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If you want to keep the Power Commander,you may need a run on the Dyno to make sure it is set-up,do you now if the former owner did this?
 

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Am I better off without the PC3 to enable him to get a better tune?
I know they can make a difference on HD's but are they necessary for MV's??

Thanks guys!
Good question. If your bike is stock (exhaust, air cleaner) probably not.

PCIII is a fuel injector adjuster that can adjust the amount of time an injector is open based on throttle position and the original ECU mapping.

It can't do anything more. A good tuner on a dyno can use this to get better fueling but a stock bike can be tuned pretty well without one.

A better method is a custom EPROM in your ECU with ignition and fuel maps fine tuned. Merc07 has a long informative thread on this.
 

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OMG,How many times do i have to say this ,just putting on a pc whatever will not automatically tune your bike,there is only one way ,Put it on a Dyno..But all other setups must be done before you put it on the dyno machine.Now what happened to my scotch.
 

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Discussion Starter #5
Other than:
Latest SPU unit (black box) Power Commander
Arrow Decat Pipe
BMC air filter
I am unsure what the PO has done, however when a specialist MV guy says its running shitty i gotta take notice.
My thought was as the PC is only a piggy back system, maybe the mechanic thinks he can get a better tune without it altogether.
My HD experience with PC3's is that they mostly just allow you to dump more fuel into the flat spots as those big twins run hot and lean.
 

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ok ,here we go.
1= tps reset
2=adjust air bleed valves
3=use vdst software to adjust c0 ,basically fuel trim
4=get your idle correct using above settings
5=hope i am talking about the correct model bike
6=who took my glass of scotch
7=reset tps in pc3 software
8=take it to a dyno guy who knows what he is doing
9=block of your egr valve using a marble
10=when all done take out the marble
11=can not find my glass of scotch
12=or buy a microtec from my friend chris at x-bikes
13=must go to bed

cheers eddy
 
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