[Jhead85]

Bike runs great but at 5/6k rpms jumps up and down a few hundred. Started after filling up last week. Thinking maybe it was bad gas so right away I drained the tank and filled with new and still having same issue. Any idea what this could be. I’d post a video of the Rpms but don’t know if this site allows it

 

[Nya`]

Yeah you can post a video.

 

[Jhead85]

When I click the attach button only lets me do photos

 

[Nya`]

Upload it to YouTube.

 

[Jhead85]

Rpm issues

 

[MANOWAR]

what octane gas are you using and are you using an ethanol blend?

 

[Jhead85]

Always use the 93. And 90% of the time I use bp gas

 

[Nya`]

I'm no expert and I'm just spitballing here but with how in synchronicity that RPM pulse is I'm thinking you've got some kind of ECU issue. Is it like this in every gear at the same RPM? Maybe something about that fuel threw something in the ECU off and it hasn't worked itself out. First thing I would do personally is disconnect the battery and ECU, let it sit for a while so everything discharges, hook it back up and then test it.

 

[Nya`]

Also as I side note after my theory I dug a bit and found this. Notice the similarity between his gauge cluster and your own? SC light stuck on, TCS and SCS forced off.

Did you happen to take your rear wheel off recently?

Your cluster.

His cluster.

2018 R1 SC Light on, TCS off, SCS off & Blipper not...

hey guys so running into a stupid problem with this damn bike and have troubleshooted everything I can so I need help! I have a 2018 r1 with the sbu flash, Graves blockoff plates, abs delete plus from ftecu, brembo master cylinder and 3/4 akra gp pipe. I did all the work myself and all...

www.r1-forum.com

 

[Jhead85]

i will give that a try

 

[Jhead85]

I had tires put on weeks ago and I turn traction controls off myself. With it on it off don’t make a difference. Rpms still jump around and it just started doing this