Fuel injection and race cans.

[mistergixer]

Will be shortly purchasing a K5 750 Gixer, as soon as it's run in i shall be fitting a race can (Yoshi) and a K&N filter.
I'm not fitting them for any increase in power, but just for the noise and free revving characteristics.
My question is: Will i need to alter the fuelling, and if so, how???
My current SRAD is carbed, and so when i got a race can and filter for it i had it rejetted to suit.
How do you do this for an injection model, or is it not necessary to adjust the fuelling?
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Space Monkey #7
Don Eladio is dead. His capos are dead. You have no one left to fight for. Fill your pockets and leave in peace. Or fight me and die!
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[0ddball]

I'm not up on how FI bikes meter air but i'd guess it's like cars.

If it uses any sort of air flow meter/ map sensor then it will take care of itself.

If it's mapped to throttle position then it would need the maps tweeking to get it spot on.
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ZXR750L

[zx636]

Yep. Power Commander is the way to go. dont get one from a shop. Go onto ebay. There is a guy on there who sells loads of them and will even load up the appropriate map for your bike/can/filter. the guy is Barrys Motorcycle Emporium
https://stores.ebay.co.uk/BARRYS-MOTORCYCLE-EMPORIUM_W0QQssPageNameZviQ3asibQ3astoreviewQQtZkm

Thats how I got mine for the R6 and when I had it on a dyno the map he loaded was so close it made no difference.

[mistergixer]

Is the power commander really needed? I thought that was more for power gains, but i could be wrong.
As i said, 148bhp is enough for me, i just like the noise of a race can, and it's revvyness(is that a word?).
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Space Monkey #7
Don Eladio is dead. His capos are dead. You have no one left to fight for. Fill your pockets and leave in peace. Or fight me and die!
Mistergixer's videos on YouTube

[.....]

Most modern bikes have a bit of tolerance when it comes to fitting slip on end cans. Some actually run a little bit rich and become better balanced when you put one on. The bike will automatically adjust for small changes. However, when you start fitting full systems with K&N filters etc then you definately need a Power Commander. With a slip on though, a Power Commander will be a good idea, if not essential. Will give you an exact fuelling map and increased fuel economy.

[zx636]

Its not for power. Its to get the fuelling right. Getting a few extra horses is a plus. Nought worst that running the bike too rich or too lean. Makes the power delivery a lot smoother too.

While I was at it I would get the 750 a TRE, preferably an Ivans if possible. I know these were on Ebay as well a few days ago.

[Kickstart]

Hi

An AFM will not really compensate for a race can (and most bikes seem to just use mapped systems). To compensate they need to have a lambda probe to feed back the exhaust gas content and adjust the mixture. Not many bikes have them (and even if they do if you go too far from standard it will just decide the lambda probe is screwed and ignore it).

I think that some Suzukis can have the fueling altered by reprogramming the ECU without the need for lobbing a Power Commander on there.

Get it wrong and you will have a quite horrible power curve. The Bandit was dynoed on Wednesday twice, once with the road baffle in the Akrapovic and once without. Peak power difference was only 7hp (5%, which surprised me) and about double that 1000rpm further down the scale. The fueling is pretty close without the baffle, but with the road baffle it is so rich it is off the scale at 6000rpm, also at 4500rpm and pretty much anything below 4000rpm.

All the best

Keith
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[zx636]

It may be possible to reprogram the Suzuki without a power commander. I know it can be done on the R6.

Its also possible that with just the can and K&N (although my Bro has the 1000 and sais the oem filter is better) you may not need a power commander. You could just add them and get it on a dyno but if they say its way out which i think it will be you will then have to get the commander and possibly another dyno.

You may just want to take the chance and not bother but with a new bike???

[Going2fast]

So if you put a slip/bolt on race can, onto a FI bike your looking to gettin the bike re-mapped ?
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BikePics Profile ||| 96' RVF 400 ||| 01' CBR 600 F Sport ||| 2009 Yamaha YZF-R6 Delivered 23/06/09
/-\ndy

[zx636]

Not if you actually believe some of the exhaust manufacturers who state "no rejetting" required.

[Going2fast]

Just brought a Micron for a CBR600 F4i.
Trying to now decide weather or not to buy a PC. Spose running the bike for a month without one wont hurt it untill i get paid again.
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Passed My Test 15/03/05
BikePics Profile ||| 96' RVF 400 ||| 01' CBR 600 F Sport ||| 2009 Yamaha YZF-R6 Delivered 23/06/09
/-\ndy

[zx636]

You can go onto the power commander site and look at the standard maps for your bike then look at the map for your bike and can.

You will see how much of a change would be required. I know people who have used this method and made the decision to buy a commander or not based on this.

Seems a bit hit and miss to me unless you fully understand all the settings, I'm not that good so I took the easy way out and bought one.

[Going2fast]

Cheers much appricated
I'll take alook, them chaps prices are good and i work in the trade.

Andy
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Passed My Test 15/03/05
BikePics Profile ||| 96' RVF 400 ||| 01' CBR 600 F Sport ||| 2009 Yamaha YZF-R6 Delivered 23/06/09
/-\ndy

[zx636]

Its not just the prices. The support is fantastic. very patient and doesnt expect evryone to be a mechanichal/electrical whiz

[kal9001]

I think i would be interested in getitng aftermarket parts to improve efficency on my SV650 (not only for more power but also for better economy) and that would include getting a airfilter, maybe possibly seeing if i can get some sort of front fed induction going on...new pipework and can (plus various light weght mods as and when i can afford.
would the "power commander" beable to alter fueling on the fly to any bike. how is one fitted, do you have to fit a air flow sensor or some kind of exzaust gas examiner for them to work? im not very "in" on mechanics, i understand most of the theories of Internal combustion and automotive mechanics but have niot had any acctual hands on experiance. i think there is a Dynojet shop not too farfrom me, would they be the best people to ask?
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[zx636]

Have a look here for the sv650. It will explain all.

https://www.powercommander.com/suppinstal.shtml