Honda CBR F4i Bogging with 50% and above throttle

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Nov 27, 2016 | 11:45 AM

#21

dec111

Senior Member

Joined: Oct 2016

Posts: 151

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Have you the diagnostic feature on that model?

I'd all sorts of issues, misfiring, cutting out etc etc and including false sensor faults IAT & CPG (although I did pull and clean each sensor as well as a few green spade connectors) it's finally turned out to be the friggin battery, even though it was within all accepted ranges on the multi meter!!! New battery and all is well again.

Must have been a dying cell.

Nov 27, 2016 | 03:35 PM

#22

Jaybird180

Senior Member

Joined: May 2006

Posts: 3,477

Likes: 3

From: Prince George's County, MD

Quote:

Originally Posted by dec111

You don't need to gap plugs these days mate, they come preset.

Did you check if plugs are fully screwed in? My 954 had one which wasn't even finger tight, when I replaced them

Unsure if it affected performance under full load though, as I'd only just bought it and was getting used to/trusting it and not hammering the **** out of it.

My F4i used to have an issue where one of the plug wires would pop off. Always the same plug.