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CBR 929RR 2000 - 2001 CBR 929RR Forum

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Old 11-21-2017, 11:20 PM
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Default Wiring problem

Hello everyone, I have a 929 that I put into my caterham 7 clone. I had a problem with my care. After 10 years of trouble free performance it appeared I picked up a short in the harness. So hereís what happened, one day in the midst of charging a dead battery I attempted to start the car while under a charg. It started then stalled. I cranked and cranked and everything worked except it wouldnít start. So I sent to my mechanic. He races turbo hayabusa so heís pretty sharp. Within 5minutes he finds blown fuse. Replaces car runs great, drives it, blows fuse, replaces drives again boom, blown again. Replaces fuse. Fuel pump wonít work. Pulls pump, dead short in pump. Replaces pump, starts runs, idles. Turns it off, then it wonít restart, wonít turn over, dash is DEAD. Fuses still ok. Tries to trace harness short. Canít find any. So I buy used harness, redo the harness, secure it, finish it, turn the key, looks good, dash lights come on, fuel pump presurizes, signal lights, horn, etc all work, we push starter button and it turns over......but does not start. Pull the plugs and check, no spark on any cylinder. Appreciate any help or advice. Also looking for an original wiring scheme, the one I have is in a Haynes repair manual. Not thorough enough.
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Old 11-22-2017, 12:06 AM
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First of all I would check those things that need to be by-passed as if it was the bike BAS,Kill switch,etc, also check relays and here's the wiring diagram,did you use a cbr929 ignition as well
Attached Files
File Type: pdf Honda 929 Wiring dia.pdf (94.4 KB, 6 views)

Last edited by CaBaRet; 11-22-2017 at 02:36 AM.
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Old 11-22-2017, 07:45 AM
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Default Wiring

Thanks for the quick reply, and thanks for the wiring diagram, you donít happen to have that in color do you? Yes I am using the original ignition as well as a power commander 4. I am wondering if I had a surge that came from the charger or ecu that took out the fuel pump and eventually then damaged the ecu. I guess I will put in another ecu and see. The fact that everything else works now with the exception of the coils makes me wonder if I just have a connection issue with one wire somewhere. Thanks any advice is paid attention to and acted upon. I will hunt some more.
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Old 11-22-2017, 08:36 AM
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If you have the instrument panel as well can you bring up any old codes
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Old 11-22-2017, 09:01 AM
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Default Wiring

Thanks, I forgot to think of trying to pull a code, itís worth a shot.
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Old 11-22-2017, 09:27 AM
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Maybe this will help ,and have a look at the Ignition Pulse Generator connection
2000-2001 Honda CBR929RR Fireblade Service Manual, Moto Data Project

Last edited by CaBaRet; 11-22-2017 at 09:39 AM.
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Old 11-22-2017, 10:29 AM
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Thanks that manual will work.
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