CB650F Tuning for full exhaust?

[GregThatBikeModGuy]

I recently got aftermarket full exhaust for my 2016 honda cbr650f. Do I need to tune it? I heard the engine will run lean and get damaged if not. I did buy a dynojet commander 6, but I woudl have to learn how to tune with that.

 

[Brammers]

It'll be fine if it's just the exhaust swap.

J

 

[GregThatBikeModGuy]

It'll be fine if it's just the exhaust swap.

J

Did you tune your 650f after full exhaust instal?

 

[miweber929]

Did you tune your 650f after full exhaust instal?

Most people don't or at least don't do it right away. I had my 650F for 3 or 4 years, all of it with the Akra pipe and never tuned it and never felt like it needed it.

 

[Brammers]

Did you tune your 650f after full exhaust instal?

Yes I did, after a while. Not because it needed it to run safely, but because I wanted to fit a power commander and "see what happens".

J

 

[JH09]

@Brammers did you notice any difference? i have not had it tuned after exhaust install, seems fine to me! thanks

 

[Brammers]

I saw a large difference in performance. A new exhaust will help, a remap afterwards will really surprise you.

J

 

[JZA]

Did you keep the O2 sensor plugged in after tuning? How’s the fuel economy?

 

[Brammers]

No, I have both the o2 and pair valves deleted.

J

 

[ghehen]

@Brammers did you notice any difference? i have not had it tuned after exhaust install, seems fine to me! thanks

tuned bike have smother throttle control at all revs. You should give it a try. For me personally money's worth.

 

[FinCB650R]

Got a full exhaust without tune, no issues. I am planning a dyno thou, not to add max power but to smoothen the usability as much as possible. CB650R has a little dip on the torque curve around 5-6k, would prefer it not to do that.

 

[theboatguy]

I have a 16 650f and am going to install a aftermarket exhaust as well. Was wondering if I got the commander 6 how do you map it to the right performance. Do I have to send it in to a tune shop or does it do it automatically? Not too familiar with that. It’s also has 27k miles but well maintained. Also if anyone knows when I should have my clearance on my lifter should be adjusted.

 

[Brammers]

You need the map built on a dyno at a shop.

You can get an auto tuner module for the power commander... But it doesn't do as good of a job as a shop would.

Valve clearance checks are every 16k, with adjustment at 32k.

Grab the service manual from resources section... It has all that kind of information in there.

J