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Oct 2nd 2016, 08:20 PM   #1
 galenernest's Avatar
 
  Jan 2016
  Beijing

  Honda CBF190R
Power Commander for my odd bike?

Hi everyone, I want to ditch the heavy stock exhaust and cat on my bike and replace it with an aftermarket option.

Motorcycle: 2015 Honda CBF190R (Single cylinder, fuel injected).

Questions:

Will the ECU adjust itself to the new exhaust system?

Can I install one of these power commander units on my bike even though it's not the exact model? (My bike is a single cylinder, fuel injected, so I chose Honda's closest on Power commander's website, the CBR250).

This is the one I found: Power Commander Motorcycle Fuel Injection Tuning Module

Thanks in advance.
Oct 2nd 2016, 08:58 PM   #2
 
  Jan 2016
  Woodinville

Before you buy anything talk to Nels at 2 wheel Dyno works maybe a reflashed but usually you don't even need to do that with the changes your thinking of.
Oct 2nd 2016, 09:56 PM   #3
 Thumperpilot's Avatar
 
  Jan 2016
  Rome

  SV650S, CRF450R, and others
Yup, call Nels first before wasting money.
Oct 3rd 2016, 07:38 AM   #4
 MMcN49's Avatar
 
  Jan 2016
  Small Island Surrounded by Puget Sound

  07 Buell XB12STT, (Two) 12 Suzuki DR650 SE 72BMWR75/5 KIA @ 243K
That will probably be a waste of money for your application. If you're still in China contacting Nells, (the one person who really knows) may be difficult.

How many o2 sensors on the exhaust? If there is only one before the Cat you may be able remove and replace it without issue. If there are two, (one before and one after) you'll most likely have issues and an always on check engine light.

If you had a program that allowed you to look at the fuel map you would see an area on the map called Closed Loop, (CL). CL is the area where you spend most of your time cruising. If you viewed the map in 3D you would most likely see an extreme dip in fueling. This lean dip helps emissions but can and usually does affect ride-ability and performance. The right reflash smooths out the dip so you can run a less restrictive muffler. If there are two o2's it can also shut off the one after the Cat.

This is a very brief overview.
Oct 3rd 2016, 08:41 AM   #5
 jared p's Avatar
 
  Jan 2016
  here

  there
you may need to look to the domestic market to you for tuning options as that's not only a non usdm bike but also a new bike relatively. i doubt an ecu flash will do you any good on that bike as most small bikes are just limited by hardware and not software and i doubt power commander will have a module for it to even tune with it
Oct 3rd 2016, 10:18 AM   #6
 
  Jan 2016
  Beaverton

  '13 636, '14 N1k, DR650
Quote:
Originally Posted by galenernest
Will the ECU adjust itself to the new exhaust system?
No. Stock ECUs are almost always statically programmed with known inputs and outputs.
Quote:
Originally Posted by galenernest
Can I install one of these power commander units on my bike even though it's not the exact model? (My bike is a single cylinder, fuel injected, so I chose Honda's closest on Power commander's website, the CBR250).
Maybe. It depends on how close your bike is to that one (Cat converter/O2 sensor, timing, wiring harness, etc.) Also look at the options for the Grom, as your bike sounds closer to a big bore Grom, than a small bore 250.

Dynojet Power Commander V Fuel & Ignition Honda GROM - RevZilla


Any fuel controller is going to be useless without a map though.

Quote:
Originally Posted by MMcN49
That will probably be a waste of money for your application.
I agree with this also. Just put the new pipe on and see how it runs. If it's really bad, fix it with a flash. I'd be very surprised if there were any ill effects from just swapping the pipe using the stock flash.
Oct 4th 2016, 02:07 AM   #7
 galenernest's Avatar
 
  Jan 2016
  Beijing

  Honda CBF190R
Thanks for the input, guys. I'll send Nels an email and see if he gets back to me. I'm still abroad and it seems that dyno tuning hasn't quite hit the masses here yet I can't seem to find a shop around here that has a dyno at all... Not surprising though considering that I went to four motorcycle shops on Saturday looking for a tire pressure gauge and was met with staff mostly puzzled with why I'd want one at all. (and I never found one for sale). One shop offered to check my tire pressure for me, did so and my front tire was down to 22 PSI (should be 30 PSI cold). The guy said it was good enough! Yeah, that's why I like to take care of things on my own.

I might go ahead and try the new exhaust without tuning and see if I notice any improvement at all... I'm really just after weight reduction and any added power would be a bonus I also notice that my bike is a bit sluggish below about 8k and I'm sure that it would benefit from some tuning...
Oct 4th 2016, 08:36 AM   #8
 Parilla125's Avatar
 
  Jan 2016
  SeaTac

Try it first, as said. On some it will actually go rich when you swap mufflers. If it has not changed a lot a narrow band (stock) sensor MAY compensate enough for it. Nels will get back to you and he will know the answer.
Oct 4th 2016, 01:59 PM   #9
 HalcyonSon's Avatar
 
  Apr 2016
  Renton

Quote:
Originally Posted by Andenthal
Any fuel controller is going to be useless without a map though.

I agree with this also. Just put the new pipe on and see how it runs. If it's really bad, fix it with a flash. I'd be very surprised if there were any ill effects from just swapping the pipe using the stock flash.
Quote:
Originally Posted by Parilla125
Try it first, as said. On some it will actually go rich when you swap mufflers. If it has not changed a lot a narrow band (stock) sensor MAY compensate enough for it. Nels will get back to you and he will know the answer.
Ride with a guy that swapped exhausts, but didn't get a tune. You'll see and hear the difference. It's not the worst thing in the world - plenty of people do it without hurting the bike. But you will notice popping on decel and excess fuel in the exhaust. Some even make a light show as that popping + excess fuel can result in a flame shooting out the exhaust.
Oct 4th 2016, 03:29 PM   #10
 
  Jan 2016
  Beaverton

  '13 636, '14 N1k, DR650
Quote:
Originally Posted by HalcyonSon
But you will notice popping on decel and excess fuel in the exhaust. Some even make a light show as that popping + excess fuel can result in a flame shooting out the exhaust.
It totally depends on the bike, but yes that CAN happen if the mix becomes too lean. Any modern bike FI with a CAT/O2 sensor will almost always run rich if you pull it. It's a lot less worrisome than it used to be with older systems/bikes.

Not sure if the bike in question that setup, though.
Oct 6th 2016, 12:33 AM   #11
 galenernest's Avatar
 
  Jan 2016
  Beijing

  Honda CBF190R
Well, I found a shop in Beijing with a dyno. Now I just hope I can get a power commander or ECU flash... I sent Nels an email, hope he'll get back to me.
Oct 6th 2016, 07:03 PM   #12
 galenernest's Avatar
 
  Jan 2016
  Beijing

  Honda CBF190R
Heard back from Nels... I heard what I expected. They don't have any flashing support for the CBF190R... it's not a US model and they have never seen one. He said if they had one in the shop to play with, they might be able to do something... and he said that it might be possible to use a Grom or CBR250 PC5 on that model, but I'd have to pay attention to the wiring harnesses, plugs and all that.

Anyway, I'll pursue the local dyno shop angle and see what I can achieve...

I appreciate Nels response and the help on this forum! Thanks!
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