CBR125 2007 Fuel Injection - Diganostics - CBR Forum - Enthusiast forums for Honda CBR Owners


Reply
 
 
 
Thread Tools Search this Thread
  #1  
Old 03-11-2017, 12:40 PM
Junior Member
Thread Starter
 
Join Date: Nov 2011
Posts: 3
Default CBR125 2007 Fuel Injection - Diganostics

Hi Everyone. I'm looking for some assistance.

I've just bought a CBR125 for very little money and it will need some work doing.
When I got the bike, a lot of the electrics have been disconnected, the engine is loose in the frame and air box and throttle body wasn’t on very well, throttle cable was off, just to give you an idea of the condition.

For some reason the Fuel Injector cable into the throttle body had been cut, and the fuel pump from the CDI has also been grounded to the frame.

When the ignition is switched on, you immediately here the fuel pump prime, and continue to prime. If I disconnect this bypassed earth cable, it does not prime what so ever?

I have disconnected from the throttle body and we are getting good amount of fuel out.

Since owning the bike I have;

Drained the tank completely & filled with 10L of fuel.
Gone around and reconnected all plugs
Re-soldered Fuel Injector back together
Completely removed & stripped the throttle body, refitted snug with no air leaks
Tested / cleaned the injector and see it spray fuel for over 10 seconds.....


When switching the bike on I am getting 5 Long flashes, and 4 Short flashes, from what I understand this is code 54 - and related to the "Bank Angle Sensor" - Bingo, yes it is disconnected.....

What I find very strange is that there IS a spark despite the error, but as soon as I bridge the two outside connectors together I loose my spark (Reading up online and this should bypass it) I loose the spark, however the fault code goes on the dash?

I'm also not hearing the fuel injector solenoid kick in (although it is quiet) but when I manually bypass that too, it still does not fire? (Although can't control the flow....)


I have had two back fires through the exhaust


Why would a previous owner have bypassed the fuel pump?
Why would the CDI not switch the fuel pump on?
Why am I not hearing the fuel injector solenoid when I try to start it?
Why do I loose a spark when I bypass the Bank Angle Sensor?

I'm at this stage suspecting the CDI could be faulty but does anyone else have any suggestions first?
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
2006 CBR125-R | Fuel Leak Question TsNMouse General Tech 0 06-09-2016 07:35 AM
Any differences between a CBR125 2007 front seat and a CBR125 2008 front seat? triptronix Other Models (125, 250, 400) 0 07-09-2010 03:34 PM
929 fuel injection problem 9two9 CBR 929RR 4 01-26-2008 03:42 PM
Fuel Injection mxman87 General Tech 1 06-13-2005 01:30 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 12:18 AM.