PGM-FI light on

[abtx]

Originally Posted by AKxx70

I replaced the original exhaust on my Mk2 with an aftermarket one, removed the servo motor and used a Healtech servo eliminator plug (Exhaust Servo Eliminator (ESE) - ESE-H02). Worked a treat.

I also removed the servo motor bracket and the counter-balance weight plate on the opposite side of the exhaust.

If you still have the stock exhaust you would probably want to check that the exhaust valve is remaining in the fully open position. (this is just a wild guess though).

I got the code and it's 35, exhaust control valve.

How do I check if the exhaust valve is remaining in fully open position?

PS: there are two length options for the Fueal exhaust, 350 and 400mm. Are both of them good to get for the CBF?

[Art]

Originally Posted by abtx

How do I check if the exhaust valve is remaining in fully open position?

RTFM Section 5 (FUEL SYSTEM PGM-FI) page 112 onward

[AKxx70]

Originally Posted by abtx

...
PS: there are two length options for the Fueal exhaust, 350 and 400mm. Are both of them good to get for the CBF?

I went for the longer one. To keep the exhaust fumes further away just in case if I ever put the panniers back.

[abtx]

Originally Posted by Art

RTFM Section 5 (FUEL SYSTEM PGM-FI) page 112 onward

I think I'll just read the RTFM before bed from now on :)

Thanks a lot for the support man, appreciate it! 🙏

[abtx]

Brilliant, I'm gonna go for the longer one then, I'll be hitting the road for the NC500 in couple weeks.

Cheers!

[abtx]

Originally Posted by AKxx70

I went for the longer one. To keep the exhaust fumes further away just in case if I ever put the panniers back.

So I got the exhaust and follow here https://www.cbf1000.com/index.php?topic=15976.0 to fit it in.

The post mentions it is important to make sure the servo motor remains connected. It looks like mine wasn’t. I would guess it’s because Phil installed servo eliminator. Should I connect it back or remove completely?

[AKxx70]

Originally Posted by abtx

So I got the exhaust and follow here https://www.cbf1000.com/index.php?topic=15976.0 to fit it in.

The post mentions it is important to make sure the servo motor remains connected. It looks like mine wasn’t. I would guess it’s because Phil installed servo eliminator. Should I connect it back or remove completely?

That post you have found is a good start and I used it to begin with. You are right about the servo motor and you would want the servo motor to stay in place if you did not have the eliminator. But as you have it already it would make sense to remove the servo motor altogether.

This is what I did - I did not bother opening the servo motor assembly and disconnecting the cables - I just removed the servo motor from its mounting bracket.
https://drive.google.com/file/d/1WUzGsheldmIMZYMqAcZZXCMr3QGdjabV/view?usp=share_link

Then I removed the mounting bracket too as it would not make sense to keep one. I routed the the wire with the eliminator upwards towards some other electric connectors and fastened with a cable tie - just to make sure it is not exposed to the outside.
And finally, I removed the counter balancing metal plate on the opposite side because it is not needed either (this requires a temporary removal of the bike's side stand, so be careful.
https://drive.google.com/file/d/1WVOCB4ZxPt_j2zQnYTXuM3HKjKS4kUIB/view?usp=share_link

Got some substantial weight savings in the end.

Which exhaust did you go for?

[abtx]

I've not removed the mounting bracket, it's a good idea to do so though.

I went for the same exhaust you got, long but round. It adds nice sporty character to the bike. It even feels faster :)

I noticed that even though every bolt and mount are as tight as they can be, the connecting pipe to the exhaust has got some play. The other end is tight. The exhaust is all the way in on the connecting pipe and I've added silicone there, so it's bit weird there's play:

Did yours have similar issue?

PS: I removed the end can and added some more silicone glue to secure the bits together, will see how it holds up after few rides.

[AKxx70]

Originally Posted by abtx

I've not removed the mounting bracket, it's a good idea to do so though.

I went for the same exhaust you got, long but round. It adds nice sporty character to the bike. It even feels faster :)

I noticed that even though every bolt and mount are as tight as they can be, the connecting pipe to the exhaust has got some play. The other end is tight. The exhaust is all the way in on the connecting pipe and I've added silicone there, so it's bit weird there's play:
...

Did yours have similar issue?

PS: I removed the end can and added some more silicone glue to secure the bits together, will see how it holds up after few rides.

It is not visible on your video but I suspect you have not tightened the bolt enough. The bolt passes through the two threaded holes in each end of the clip/bracket. Those threaded holes do look quite fragile but they are not. You can possibly tighten the bolt further; do it slowly by hand though.
I just checked on mine and the threaded end of the bolt sticks out for at least 15mm leaving no gap. (This is, of course, if they supplied the same bolt to you.)

In the worst case, if you become unlucky and destroy the thread in the bracket hole, you can just fit a suitable locking nut or a standard nut with a threadlocker or just two standard nuts one on top of the other - this will secure it for good.

Speaking of silicone - while the manufacturer suggests to add some I saw a lot of threads on other forums where many people just did not bother with silicone at all and their connections lasted for years. I did not have any handy when I was fitting the new can, so did it without.

[abtx]

100% weren't tight enough. I initially used a bosh screwdriver, and found there was way more leeway with torque wrench.

Thanks a bunch for your help, it's much appreciated 🙏

Now the bike is ready for some touring. can't wait to hid the road for longer.

Cheers!