CBR650F Do I need a remap/PCV/Bazzaz fuel controller unit?

[imahungrybiker]

Hi guys,

I was somehow unable to get my answers hence this thread. Anyone helping me sort this will be of great help to me.

I have a 2017 CBR 650F and the bike has stock filter and spark plugs. But has a AliExpress sources SS full system exhaust on it from the previous owner.

I don't have any fuel controller module on the bike. Do it need to install one?

Because the bike has probably done 10000+KMS with the exhaust. What's stuck inside my mind is that is the bike running lean? Because I have not felt any hesitation or stuttering or flat spots while riding it in varied condition. Neither I feel it's getting hot except when stuck in stop go traffic.

Can I run the bike as it is? Will the stock ECU handle it well?

I know of people who have actual Akra FS on with no fuel controller or remap and running fine as per them.

Kindly help. Thanks

 

[miweber929]

Hi guys,

I was somehow unable to get my answers hence this thread. Anyone helping me sort this will be of great help to me.

I have a 2017 CBR 650F and the bike has stock filter and spark plugs. But has a AliExpress sources SS full system exhaust on it from the previous owner.

I don't have any fuel controller module on the bike. Do it need to install one?

Because the bike has probably done 10000+KMS with the exhaust. What's stuck inside my mind is that is the bike running lean? Because I have not felt any hesitation or stuttering or flat spots while riding it in varied condition. Neither I feel it's getting hot except when stuck in stop go traffic.

Can I run the bike as it is? Will the stock ECU handle it well?

I know of people who have actual Akra FS on with no fuel controller or remap and running fine as per them.

Kindly help. Thanks

You're fine, the bike will adjust itself to the new pipe and won't hurt itself. It's most likely not tuned ideally, but it will be ridable.

 

[imahungrybiker]

You're fine, the bike will adjust itself to the new pipe and won't hurt itself. It's most likely not tuned ideally, but it will be ridable.

It's rideable mate. Delivers a healthy tankful range of 340-350kms as well. My doubt was will it be of harm on the longish run or is the bike fine enough to take the brunt and live on?

 

[miweber929]

It's rideable mate. Delivers a healthy tankful range of 340-350kms as well. My doubt was will it be of harm on the longish run or is the bike fine enough to take the brunt and live on?

It would take it being incredibly lean for engine damage, like open headers lean. It's fine.

 

[JRinKtown]

You are better off getting a fuel controller to tune the A/F ratio, especially if you also have a high flow air filter to match your aftermarket exhaust. Sure, the bike will run seemingly fine without the controller, but it will run leaner than factory spec. That means hotter and more possible wear on valves, etc. You will run richer with the controller, better for the engine, and you'll get a bit of a power boost.

 

[imahungrybiker]

You are better off getting a fuel controller to tune the A/F ratio, especially if you also have a high flow air filter to match your aftermarket exhaust. Sure, the bike will run seemingly fine without the controller, but it will run leaner than factory spec. That means hotter and more possible wear on valves, etc. You will run richer with the controller, better for the engine, and you'll get a bit of a power boost.

Running a stock filter and plugs. Only FS exhaust I have