Hello! Happy new year to everyone.
I'm a first-time poster, long-time lurker.
I am writing today to get some help. Bike:
2006 ZX6R/ZX636DF Problem:
Currently, the bike is experiencing high idle, around 3-3.2K, which appears to occur intermittently. This first started when I was stopped at a traffic light on first gear, with the clutch fully disengaged. About 10minutes prior, I had washed my bike at a self-serve drive-in wash place. I did not have this problem while I let my bike idle on neutral immediately after post-wash to help it dry off. I turned the bike off/on when I got home, but the bike would start, climb to about 1300 RPMS and continue to 3K'ish. I let the bike sit for a day, and it started up normally the following day. I did not ride that day. Two days later, I went to ride the bike, and it started up to 1300RPM, but then climbed to 3K again. I turned the bike off/on and checked for throttle cable play/response, everything felt normal. On maybe the 5th off/on attempt, the bike started up and idled at normal RPMs. It also began to snow, so I rolled the bike indoors and let it sit while I removed the fairings to prepare for additional diagnostics.
Edit: the problem also manifests in-gear. So when riding in 1st gear with a closed throttle, the bike is pulling forward as though I was applying throttle. Summary of attempts to repair:
1. Loosened/tightened idle adjuster cable. This had no effect. I even removed the cable completely and the idle RPMs were unaffected when experiencing the high RPM issue.
2. I removed accessory electronics (e.g., USB charger, harness for a battery tender, aftermarket LEDs), no effect.
3. Throttle cable seems to move freely without binding when listening and feeling during throttle manipulation with engine off.
4. I also read this post by Pivot918 but doesn't seem to be the exact same issue: https://www.zx6r.com/zx6r/55571-rpm-...ets-stuck.html
5. A user in another forum suggested it was a wet ECU: https://www.v-twinforum.com/threads/...e-help.105213/
but I feel like a wet ECU would cause shorts that would be more damaging than high idle
Are there any other diagnostic tests I should conduct before asking my local shop? My shop is pretty good and fair about pricing, but I'm also a DIYer who likes to learn about his cars/bikes and be able to prevent/fix problems on their own so any input you are able to share with me would be greatly appreciated!