Hi, ok so I have a 2008 cbr, I came off recently in the ice, minimal damage done by the looks of it other than broken clutch (now shifts gear without using clutch) and my speedo and miles counter no longer works) But the other day it really really struggled to start, eventually it did but kept dying when idling. I managed to get it started again but the revs were going up and down on their own. I got a few miles down the road and it kept stalling at low revs. The next day it wouldnt start at all so I had to jump start it. I was riding along quite slowly and every time I put the revs up it started jerking back and foward and the revs were going up and down again quite violently. I got it home and it hasnt started since. Iv killed the battery trying to start it and jump start wouldnt work at all. Any advice on what this can be, someone said the spark plug might need replacing but would that cause the stalling and horrific jerkiness? I have ordered a battery charger and new spark plug. It had a full service a few months ago. Im hoping its not a major expensive job as iv had a new camshaft and radiator put in a few months back and up until now its been running amazing. Any help would be greatly appriciated.

 

The bike is a CBR 125

 

Hi what fault codes is it putting up

 

it hasnt been attached to a machine to see faults, fuel flood light goes off like always when I turn it on

 

Hi you will get the faults through the MIL flashing light, just have to count them, count the long flash and then the short ones

 

as far as I know my cbr doesnt have an MIL light, just the FL light that always goes straight off

 

Just to recap, you have a Honda cbr125 2008 fuel injection

 

Honda CBR 125 58 plate fuel injection

 

Do you have a Workshop manual, see here

 

ok on that picture where it says the MIL light is mine just says FI and when I turn the bike on the light comes on for a couple of seconds then goes off. It has always done that, no blinking and only ever comes on when key is first turned