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post #1 of 4 (permalink) Old 06-03-2013, 10:16 AM Thread Starter
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Need Help with Thundermax autotuner AFR settings

Hey Guys, just a quick question. You all talk about AFR setting and they should be set to 13.7 or 13.8. I was able to log into my autotuner and I did the monitor on the system. I let the bike warm up to 278 degrees, but I can't find were you verify the AFR setting. I see Target AFR setting. Are you guys referring to the closed loop systems settings? That seems to me to be the only Place were I can verify the settings? Is that correct? And also that options is not checked on my Map. Once my bike warmed up my AFR was 13.5 in the Target. So I'm a Newbee on the Autotuner so sorry for all the dumb questions...
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post #2 of 4 (permalink) Old 06-03-2013, 12:19 PM
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When you are linked into the ECM with your PC and monitoring the bike you will see the target AFR and then the front and rear AFR readings which will fluctuate while the bike is running. As long as the front and rear cylinders are in the green your AFR should be good. How is the bike running?


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post #3 of 4 (permalink) Old 06-06-2013, 10:16 AM Thread Starter
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Bike pulls strong, but I have a ping at about 4K and I gettting some heat out of the back Cylinder.So when the bike warms up my AFR's are about 13.5. Some people say to tweak them to about 13.8 is the sweet spot.
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post #4 of 4 (permalink) Old 06-06-2013, 02:40 PM
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Originally Posted by Tofast4u View Post
Bike pulls strong, but I have a ping at about 4K and I gettting some heat out of the back Cylinder.So when the bike warms up my AFR's are about 13.5. Some people say to tweak them to about 13.8 is the sweet spot.
I had the same issue, retarded the timing 1 degree, took care of the ping. Directions @: http://www.thunder-max.com/TechDocs/...EngineTemp.pdf

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