CBR929rr Running on 2 cylinders - Honda Motorcycles - FireBlades.org
Honda FireBlade Discussion of the Honda CBR 900RR, Honda CBR 929RR, Honda CBR 954RR, and Honda CBR 1000RR Motorcycles.

User Tag List

Reply
 
LinkBack Thread Tools
post #1 of 17 Old 07-25-2004, 4:00 PM Thread Starter
 
Join Date: 07-25-2004
Posts: 11
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
CBR929rr Running on 2 cylinders

As the title states my 01 929 is only running on the 2 & 3 cylinders. Its not the coils as they have been swapped around and still 1 and 4 are just not firing (as detected from spraying water on the headers). What else could I check other than the ECU?? Bike only has 2500 miles 1700 of those from me.

I have been looking at this site for a while and I'm glad to have finally joined. Thanks to anyone with some help, Wes Brown
Erion-929rr is offline  
Sponsored Links
Advertisement
 
post #2 of 17 Old 07-25-2004, 4:03 PM
 
Join Date: 02-07-2002
Posts: 10,531
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Reputation Power: 0
                     
Re: CBR929rr Running on 2 cylinders

Injectors, plugs, ECU.
Do you have a Power Commander? If so, remove it and try again.
BDA116 is offline  
post #3 of 17 Old 07-25-2004, 4:16 PM Thread Starter
 
Join Date: 07-25-2004
Posts: 11
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Re: CBR929rr Running on 2 cylinders

No power commander. Forgot to mention that I replaced the plugs. I think fuel injectors are out because the plugs are very wet when removed. I guess I just dont want to think that its the ECU $$$$$$. Any more suggestions??? Thanks, Wes
Erion-929rr is offline  
Sponsored Links
Advertisement
 
post #4 of 17 Old 07-25-2004, 7:34 PM
 
Join Date: 05-10-2003
Posts: 1,538
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Re: CBR929rr Running on 2 cylinders

Swap around or put in new plugs. I spent about $300 *fixing* (thowing parts) a bike after I put in new plugs. One of them was simply non-functional right out of the box! (Damn Honda branded NoGoodKind plugs). Meachanic put in a new plug and viola.. fixed (leaving me with parts like new plugs wires and coils that I really did not need). Try it, it's not that time consuming and should not cost much to try.

You have to run your troublshooting tree and the first question you need to ask is "What changed?". Good luck. With Honda with so few miles I would be shocked it was anything more than plugs (bad gap or just plain bad).

Last edited by Holeshot; 07-25-2004 at 7:36 PM.
Holeshot is offline  
post #5 of 17 Old 07-25-2004, 7:58 PM
 
Join Date: 07-23-2004
Location: usa
Posts: 102
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 16
 
Re: CBR929rr Running on 2 cylinders

i have an ecu if you need one. let me know.
Superbike Supply is offline  
post #6 of 17 Old 07-25-2004, 11:01 PM Thread Starter
 
Join Date: 07-25-2004
Posts: 11
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Re: CBR929rr Running on 2 cylinders

Well it seems like it has to be the ECU. Ebay is my friend tonight with a guaranteed working model for 75 shipped.

I know what you mean about the troubleshooting tree Holeshot, my previous ride was an F2 that liked to smoke up rectifiers. Honda electrics and my family have never gotten along. Dad and brothers VFRs both have had new rectifiers as well. Maybe our house is on an old Native American burial ground????

I'll let you know what I come up with. If anyone has anything else to add please give it a go as I will be waiting for my part for a few days at least, Wes Brown
Erion-929rr is offline  
post #7 of 17 Old 07-29-2004, 5:10 PM Thread Starter
 
Join Date: 07-25-2004
Posts: 11
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Re: CBR929rr Running on 2 cylinders

No joy with the new ecu. Correct me if I'm wrong but the ecu goes directly to the coils, no silly sensors or anything between them right? I have all the luck. Wes
Erion-929rr is offline  
post #8 of 17 Old 07-29-2004, 5:12 PM
 
stegen's Avatar
 
Join Date: 12-29-2001
Location: La Crosse, Wi
Age: 38
Posts: 3,301
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 23
   
Re: CBR929rr Running on 2 cylinders

Quote:
Originally Posted by Erion-929rr
No power commander. Forgot to mention that I replaced the plugs. I think fuel injectors are out because the plugs are very wet when removed. I guess I just dont want to think that its the ECU $$$$$$. Any more suggestions??? Thanks, Wes
what do you mean the injectors are out? like not working?
stegen is offline  
post #9 of 17 Old 07-29-2004, 5:25 PM
 
Join Date: 01-03-2003
Posts: 92
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Reputation Power: 0
 
Re: CBR929rr Running on 2 cylinders

Quote:
Originally Posted by Erion-929rr
Correct me if I'm wrong but the ecu goes directly to the coils, no silly sensors or anything between them right?
You are right and wrong. The negative side of each injector comes from the ECU "A" or Black Connector side. The Hot side of the injectors are connected to battery pos through the Engine Stop relay and fuse F1.

Note: The hot side of the injectors are shared and color coded as BLK/WHT.
aBnorMal is offline  
post #10 of 17 Old 07-29-2004, 7:29 PM Thread Starter
 
Join Date: 07-25-2004
Posts: 11
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Re: CBR929rr Running on 2 cylinders

Ok, after I got done beating my head against the wall I stopped and thought about things. What I have discovered is that the Plugs are firing(at least on the block) and I am getting fuel. Could I be getting so much fuel that the plugs can't cope and only burn partial in turn cooling those cylinders so much that it seems like no fire? Also is there anything (sensors, wiring wraps) on the bike that would be divided up cylinders 1&4/2&3?

Got out the multimeter and started poking around with sensors I know nothing about. I have a Haynes book and was checking the throttle position sensor wires and discovered that one of the power wires has 4.99v and the other has like .5v. In the book it says they should be the same, however the book also says the wrong color wires.....hhmmmmmmmm.

I hate this kind of crap, couldn't have been the plugs.....nooooooooooo, that would have been to easy for me. Dammit. thanks for listening and for the help , Wes Brown

Last edited by Erion-929rr; 07-29-2004 at 7:31 PM.
Erion-929rr is offline  
post #11 of 17 Old 07-29-2004, 7:53 PM
dB
 
Join Date: 04-17-2002
Posts: 1,666
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
   
Re: CBR929rr Running on 2 cylinders

Or maybe those plugs aren't firing at the right time? I think it would be hard to do, but any chance you swapped those two plug wires?
dB is offline  
post #12 of 17 Old 07-29-2004, 8:05 PM Thread Starter
 
Join Date: 07-25-2004
Posts: 11
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Re: CBR929rr Running on 2 cylinders

I thought of that but the wires are only long enough to go to the proper coil. Wes
Erion-929rr is offline  
post #13 of 17 Old 07-30-2004, 9:01 AM
 
Join Date: 01-03-2003
Posts: 92
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Reputation Power: 0
 
Re: CBR929rr Running on 2 cylinders

If your meter reads resistance than read across each injector. Should read 11 ohms (give or take an ohm or two) if it reads open or anything out of the given tolerance then it's bad. I've had two bad injectors on two different occasions. Both were reading open. One was stuck in wide open spray and the cylinder and plug were so wet it wouldn't fire.
aBnorMal is offline  
post #14 of 17 Old 07-30-2004, 10:17 AM Thread Starter
 
Join Date: 07-25-2004
Posts: 11
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Re: CBR929rr Running on 2 cylinders

Good suggestion, I will try that out this afternoon after work. Wes
Erion-929rr is offline  
post #15 of 17 Old 07-30-2004, 4:43 PM Thread Starter
 
Join Date: 07-25-2004
Posts: 11
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Re: CBR929rr Running on 2 cylinders

Well the injectors checked out ok on the meter. I guess it could be a possibility of them sticking on , but how do I check that???

I would just take it to the dealer , but what I heard on the phone from the service guys about my carbs (929 mind you) I feel as though I could track down a problem as fast, if not faster than those yaa-hoos. Wes
Erion-929rr is offline  
Reply

  Lower Navigation
Go Back   Honda Motorcycles - FireBlades.org > Honda Motorcycle Models > Honda FireBlade

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Honda Motorcycles - FireBlades.org forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
A valid e-mail address is REQUIRED. You will not have access to any site features until you activate your account using the activation e-mail that is sent to this address.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Keep That Old Motor Running Moto Off-Topic 0 04-07-2004 3:00 PM
Well, the 954 is back up and running! K9inAZ Honda FireBlade 4 12-24-2003 12:41 PM

Posting Rules  
You may post new threads
You may 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

 
For the best viewing experience please update your browser to Google Chrome