| Author |
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Mackja
| | Posted on Monday, December 14, 2015 - 05:05 pm: | 
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I would check and make sure the intake valves are opening. Rocker arms have been known to break. Open the throttle put it in gear and turn the engine over with the tire, watch the valve movement. |
Bradleysmith
| | Posted on Monday, December 14, 2015 - 09:17 pm: |
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Ok. Here is a quick download.
1 IAC Steps are 183 w/o out engine running.
2. Fuel injectors seem ok and valves as well after getting the engine to turn over a bit and watching both valves on both cylinders move.
3. Turned engine on, and behold. The front muffler did not heat up while the rear one burnt my finger after about 10 seconds.
So, it seems as though the front cylinder is not firing. Now, need to diagnose that. Any ideas from anyone? I've seen the videos of the front spark plug replacement, does not look too fun. Before I do that, is there any diagnostic I can do or things to check? Off the top of my head:
1. Make sure wires are connected.
2. Jiggle the wires around
3. replace spark plug 
Will check out the service manual as well.
Thanks everyone for your patience here. Really appreciated!!! |
Panshovevo
| | Posted on Monday, December 14, 2015 - 09:31 pm: |
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quote:
Mackja
Posted on Monday, December 14, 2015 - 05:05 pm:
I would check and make sure the intake valves are opening. Rocker arms have been known to break. Open the throttle put it in gear and turn the engine over with the tire, watch the valve movement.
If you've read the thread, that has been suggested at least two, and possibly three times, for precisely that reason. |
Panshovevo
| | Posted on Monday, December 14, 2015 - 09:44 pm: |
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Bradley, I'm thinking...
On a more conventional setup, I'd say go ahead and replace the plug to see if it solves the problem, but because of the difficulty involved in doing so on this engine/frame configuration, a little troubleshooting might be in order first.
How many miles on these plugs?
Have you read the procedure in the service manual for initiating the spark plug self cleaning?
I'll get back to you. I need to think this through.
(Message edited by Panshovevo on December 14, 2015) |
Bradleysmith
| | Posted on Monday, December 14, 2015 - 10:16 pm: |
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The bike has 10,300 miles. I don't know if they were replaced before I bought the bike at 7,200 miles.
I saw the self clean and will check it out...thanks.
If worse comes to worse, juniorkirk87 has 6 videos on YouTube showing how to replace. Seems straightforward, but I am sure will test my ability.
If you think of anything else, will be glad to try. |
Bradleysmith
| | Posted on Tuesday, December 15, 2015 - 09:13 pm: |
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Ok, tried the self clean and nothing. Front cylinder still cold.
So, took out the spark plug ala juniorkirk87 on YouTube and had to order new plugs. So, back in a couple days. |
Panshovevo
| | Posted on Tuesday, December 15, 2015 - 10:58 pm: |
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What does the front plug look like?
I wasn't able to put much time into thinking about your problem today.
I had a rough night, didn't sleep well. The last round of epidural injections is wearing off, and my back and leg pain is returning fiercely.
Can't get more injections until the 30th of the month.
Finally found a surgeon that will do what needs to be done (fuse L4-5 and L5-S1) but I have to fly to Dallas TX, and wait until Jan 22nd to get it done.
At any rate, both of my 1125s show 160-165 steps with the engine off, in Diagnostic Mode, with the engines overnight cold (75 degrees or so ambient temp).
(Message edited by Panshovevo on December 15, 2015) |
Yankeerl
| | Posted on Wednesday, December 16, 2015 - 11:02 am: |
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Brad,
just a random thought while you have it apart, is to swap coils (front and rear) to see if you have a bad one. in theory if the front is bad, it will move your problem to the rear cylinder. |
Bradleysmith
| | Posted on Thursday, December 17, 2015 - 10:20 pm: |
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Well gents (and ladies), it was the spark plug in the front.
So, a key learning from me is that the O2 sensor error can mean a lot. But a quick check is to feel the exhaust on the cylinder where you get the sensor error code to see if the spark plug is firing or not. If the exhaust is cold, then you can consider spark plug or fuel injector, etc.
I went the round about way and replaced the O2 sensor, still had the issue, and only noticed from bumping the exhaust that it was not hot. Then when compared to the rear, figured it out.
Notwithstanding, everyone's help and suggestions really were encouraging for me to push myself to challenge my mechanical skills. I probably saved a few hundred dollars from the dealership. And I learned a lot more about the bike that I ever would have had I not used this forum!
I am very grateful for this forum, thank you all and happy holidays!!! |
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