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    Rough idle and engine code after valve adjustment

    I just got my bike back from the dealership service center after having the valves adjusted. It started and ran fine for a mile or so at city speeds, and then for about 30 minutes at highway speed. When I exited and stopped at a light, I was idling so rough that it rattled my vision. After that...
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    Question Does this look ok?

    The closest ones are the original weights (30g) the back ones were just added (20g).
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    WTB: The brass bolt with embedded magnet that attaches to the kickstand and activates the sidestand sensor.

    I was adding a washer between the stand and the bolt so that the magnet would rest more firmly onto the sensor body, and I completely spaced that the bolt was brass and sheared it off. If any racers have removed your kickstand, or others who have bypassed the side-stand sensor, could let go of...
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    Need Help Does a cat-delete midpipe require a new ECU and remap? If so, are there any that do not?

    Hello, just what the title says. I have a 2017 and I want to upgrade my suspension. Apparently, the Yamaha R-series rear shock absorbers that are compatible don't fit 2017+ RC390s without deleting the cat. I'm pretty darned ok with the bike's performance on the street and highway, so I really...
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