No it will not throw a code if you remove it. Yes you probably will fail an emissions test if you live in a place that tests for that. No these are not installed on all R3's, for instance, I know the Canadian R3's don't even have the holes drilled into the block that mount the canister. The system basically circulates evaporated gas into the canister or the throttle bodies instead of into the air. You gain no performance, other than the 1 pound 4 ounces in weight reduction. However, if you are going to tune your R3, this is all but required to get accurate readings. If you have any questions feel free to ask them in the comments below and I'll do my best to answer. Thanks for watching!
Here is the link below that shows step by step how to disconnect the system:
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And here is my video that breaks down how to get under the gas tank step by step. It also shows how to delete install a smog block off plate. While the tanks off, thats also a good time to change out your spark plugs if they're due, which I also have a video on how to do.
Smog Block Off Plate Install:
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Spark Plugs Install:
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