bones4911

Many thanks to all for your support. because the bike had been off the road for several years and not knowing why the history on why I found it difficult to find out why and what was wrong. i have now changed the complete tank unit because I could hear the pump but not enough pressure. Also I had changed the Tilt sensor, fuel injector and then the ECU and then the 3/9 code went out and now the bike runs fine .

Thanks again for replying. The sensor is as in tail . I have tested voltage at 3v on 2 wires . replaced the module and still have 39 code . on testing voltage on the injector I have 9v . I’m wondering if the replacement ECU I have has the same fault as original? I have cranked engine over with injector out with nothing showing. Dose the signal come from a crank sensor to power the injector?

Thanks for responding. Where/ what is the Lean angle sensor?

Hi all . Thankyou for accepting me into this forum . i have a 2008 YBR125 that has been in storage for 10 years . i have cleaned petrol tank out and replaced the pump and filter On trying to start up I get Code 39. I have checked the coil on the injector and that was fine but still fitted a new one with same results ( 39)? I hear the fuel pump work until pressure is reached . engine runs for 10 secs with easy start I have “Buzzed” the wires through from the injector plug to the ECU . I have an even tried another ECU . Any help would be great full. thanks Bones