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Honda MX & Off-Road Dirt Bikes
crf150r throttle (carb) issues
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[QUOTE="Rich Rohrich, post: 1321425, member: 16241"] I think they leave it rich as a safety measure, just in case there is an extended period of high load WOT running. This isn't an uncommon practice. EFI cars are pretty much the same way. I've hooked up my DAQ system and ran a second wideband O2 sensor on my smallblock Dodge V8 and watched the A/F ratio under lots of conditions. The system stays in the 14.0:1 - 14.8:1 range till you go to WOT 100% on the TPS , then it shifts in to an open-loop mode and runs the A/F ratio at an insanely rich 10.3:1. It's so rich at WOT that I can run a nitrous shot straight into the intake without any extra fuel added, if I trigger it to just run at the 100% throttle voltage from the TPS. I guess they are trying to save us from ourselves. :whoa: [/QUOTE]
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Dirt Bike Discussions By Brand
Honda MX & Off-Road Dirt Bikes
crf150r throttle (carb) issues
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