Quote:
Originally Posted by Old Tele man
Pardon my skepticism, but the ECU delay getting back down to 'normal' 750 rpm idle just MIGHT be the ECU "re-learning" it's parameters after having been "reset" by a battery disconnection.
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You misunderstand, perhaps it was my phraseology. The idle normally sits at 1700 RPM. For the first 5 minutes after installing the Pulstar plug (the
only change made to the bike for that entire tankful of gas), the bike idled at about 2450 RPM, until the ECU dialed back on the Idle Air Bypass Valve to slow the engine down.
And it wasn't "cold engine fast-idle", either... on this bike, cold idle goes to 2000 RPM, and given that it's fuel-injected, it only stays there for about 5 to 10 seconds before it settles down to normal idle speed.