Hunting rpm

[dave]

Hi Dave, no issues with the bike since the replacement of the IACV motor. I haven't put the bike through a repeated stop-start scenario, however I have ridden several hundred miles in a variety of traffic and temperatures that I would expect to exacerbate any lingering issues. I'll probably do the stop-start test in the coming days as I'll be off work.

Any progress on your ride? Has Beardy gotten back to you? Hope all is well.

Hi John. Thank you for your reply. No progress with my bike. Beardy reply was bad news - dealer said no new map was available. Please keep me updated. My bike has been parked for two weeks now because I just don't enjoy riding it the way it runs. I rode the XR650L last weekend, and the VFR800 the weekend before.
Hi John and All. Can I get some feedback please? Can you guys listen to your Idle Air Control Valve (IACV) cycle when you turn your ignition key on and describe the sound you hear? It's located on the RH side throttle body, between the throttle body and the air filter. You have to listen very carefully because the sound of the electric fuel pump is much louder (please don't confuse the fuel pump sound for the IACV sound). Today, the sound of my IACV cycling when I turn on my key is extremely faint - it used to be much louder, and this is leading me to believe that it may be faulty. It makes a faint clicking noise, at what I would guess to be maybe 200 - 300 hz. I am starting to believe that maybe my IACV is faulty, and this is causing the high RPM idle (that sometimes is low RPM idle and stalling). I don't want to spend the $ for a new IACV and go through all the work to replace it unless I have a high level of confidence that this will correct my high idle problem. Thank you.