Hey guys, yesterday I was cleaning fuel pump on my 2007 CBR125R and accidentally i connected wrong wires - i swapped + and -. It burnt the fuse so i had to replace it, but after replacing it, the fuel pump just won´t stop. I checked all the fuses and starter relay and everything seems to be OK. After turning the key to ON position everything works - lights, neutral light, horn works, turn signals too. Only the pump seems to not work correctly. I had a new pump, so i tried to replace it, but it does the same - just won´t stop. If anyone could help me i would be thankful.

 

Hi matey , could you lift the tank and check the Earth wires to the pump , check all the connectors below there,

 

The bike is fully dissassembled, fuel tank is off the bike, and the whole fuel pump assembly is out of the tank. I thought it might be the pressure, but it wasn ´t.

 

No , I think its more likely to be a cross over Earth with blowing a fuse, if you like its like a bypass on the pump that keeps it running all the time, so I think its down to shorted wires somewhere around the pump circuit, will look at some test's you can try

 

Your relay may be stuck to the on position. Try swapping it with another relay.

 

Yes, this. Sometimes when you short a circuit that involves a relay the relay will stick. Replacing it is your best option and they are not very expensive, usually less than $10.