When you change to a non stock exhaust system and add new electronics, the bike needs to be hooked up to a diagnostic machine to map out new fuel delivery to compensate for the changes. It's possible that one or more of the changes you made will not be compatible with your camshaft profile, or fuel parameters. You may even need to have the engine dyno'd to see what's happening with the torque and horsepower curves.
I know some of the Harley Davidson units require some adjustment to operate properly The three adjusting screws are for low speed, midrange, and high speed tuning. The adjustments can only add fuel, not take it away. But, your bike sounds like it is really leaned out. First make sure the ground wire is connected to the battery neg. terminal, and with your model the O2 sensor stays plugged in. Some units require that the O2 sensor be unplugged. You can try adjusting the unit by turning the adjusting screws a little at a time, and taking a test ride after each adjustment. Keep notes on how many turns each adjusting screw was turned and what direction. Make sure the unit you received is the correct one. If they sent you one that requires the O2 sensor be unplugged, nothing is going to work as it should. Double check all your fuel injector connections tomake sure they are according to the instructions that came with the unit.
You don't mention what kind of motorcycle you installed this system on. What is your motorcycle and engine size?
What is the make and model of your motorcycle? I will research the Cobra Processor for your motorcycle and try to find out why it is not working for you.
I had my doubts as to whether the unit would work with the O2 sensor. The computer is going to rely on the O2 signal to set the fuel parameters, so the unit needs to override the computer. I know the unit is plugged in to the injectors, but is the original wiring also plugged in to the injectors? I would think the factory injector wires would have to bve disconnected, and let the new unit fire the injectors. If the factory wires must remain connected t the injectors, perhaps replacing the O2 sensor would help.
Just got off the Cobra website. Fist thing I noticed was, model #92-1773CL is listed for the 2006-2009 Stratoliner. They do ot list a unit for your 2010 bike. That could be a problem. Second, they said with the closed loop system, the number 1 pot would not need to be adjusted. They didn't say it could not be adjusted. Factoryu setting is 0.1. I would addjust that to 1.5 and see what happens. If it shows improvement, increase it some more. Also, have you check to see if the green LED light is on constant in the control box. If it's not on, the unit is not operational. I don't know if any of this will help. I hope it does. I still think adjusting the number 1 pot is the solution. Good luck and let me know how it goes.
Thanks. I was really hoping the adjustment would do it. Since the website didn't list a product for the 2010 Yamaha, perhaps you have some recourse, and can return the unit. Good luck with you bike. Sounds like an awesome machine.
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not how linear it is, and must be. or it is bad.
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I was under the impression that this is what the cobra fuel prosser was suppose to do. It was advertised as preset for this bike with aftermarket pipes and air kit. What gives?
The bike is a 2010 yamaha stratoliner 1854cc. This fuel processer plugs into the 02 sencer and in a wiring harness under tank. I have tried it on all of the diferent settings and still the same. Talked to the people at cobra and they said the unit was fine and that itwas the 02 sencer hunting for the right setting. Still was also told that with this unit that adjustments to the second and third pots couldn't. Be made. Talked to the people a the yamaha shop and was told that due to the lack of adjustment with this unit that I may have to go with a power comander unit. Any insight you can give me is greatly apreciated. Again thanks
The info was helpful didn't cure the problem but helped to understand what is going on. As for the hardkome 2into1 sideburner exaust I love them had them on my 1300yamaha tourer. With them airkit and fuel processer jumped hp from 65 to 83 and tork from 72 to 87 . The pipes are loud ,very deep roar on ecceleration but mellow out at cruising speed
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