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Engine light (spark plug replaced)

davaw

2015
CB650F ABS
Jul 16, 2023
Riding Since
2022
I've just replaced my spark plugs connected everything back together started it up now I've got a engine light on it flashes for a few seconds then goes off then back again for a few seconds I'm trying to post a video of it bit it won't find it on my phone through the attachments file
 

Brian C.

2021
CBR650R ABS
Nov 26, 2021
Northwich
Riding Since
2021
Hi, I would start by checking a few things, the connectors are really tight under there and can take a considerable effort to get them fully "Clicked" back in, make sure there is not one that is not fully pushed home, Is it possible you mixed up the leads when reconnecting them? if you managed to swap two around this could cause an issue. I did mine one at a time to avoid this possibly happening.
How many times does the Engine light flash? if the pattern is regular this may help to diagnose the issue?
Is there any chance some debris went down into the cylinder while you were doing the work?
If you can get an OBD reader connected this will give you a code, this could help too.
 
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