Hey guys.. I have a 03 cbr600 F4i.. only additions are a yoshimura trs slip-on.. The passed few weeks I've noticed that whenever I hit a bump a little hard, the FI light comes on and the tachometer immediately down to 0 rpms,and the engine sputters.. It's like the bike loses power from the battery and messes up the fuel system causing the tachometer to shut off and engine to sputter.. Obviously I'm assuming its an electrical / wiring problem, maybe a lose connection somewhere so I said I'd write here to see if anyone had this problem before or can tell me where to start looking for lose connections.. Also since this has been happening I notice delays when I accelerate quickly when first starting off.. I open up the throttle half way for example and it takes a second before the bike realizes im doing it.. I'm hoping this is all linked to the same problem.. Any help would be great!

 

Sounds like a loose battery connection. Even if they look ok, I would clean and re-connect em.

 

I couldn't have said it better myself. There is another thread just like this one that I posted the same answer in. When it happened to me I googled it and found the answer from other forums just like this one.

 

Ok thanks guys.. I'll give all the wires/connectors a good cleaning friday when I get back home and I'll post back here and fill you in on the results..