03-09-2018, 07:03 PM
(03-09-2018, 03:31 PM)SportsterDoc_imp Wrote: I am at a loss to attempt to explain any electrical correlation with releasing the clutch and increased idle speed; other than perhaps the IACV is reacting/over-reacting to increased load?
Before pursuing this, Is it possible that there is zero slack in the throttle cable and your right hand moves slightly as left releases? Have you tried this with hand off throttle? (could not see with vertical video format)
Ambient temperature might possibly affect electrical connections or a vacuum loss.
The EOT (engine oil temperature) sensor is a thermistor. It is very high resistance when coldest, then loses resistance as the temperature increases.
Therefore, if there is a poor/high resistance connection relating to the EOT, the higher resistance could indicate to the ECM a colder operating temperature than actual. If so, the IACV would maintain higher RPMs, as during warm-up.
Even though the IACV operation is a prime suspect in most of the reported idle issues, there may be (instead of or in addition to) poor electrical connection(s).
I knew I should have taken a better video! Left hand on the clutch lever and right hand taking video so no throttle contact. And I know it is hard to tell but I was not on the brakes at all and clutch was right at the point of starting to grab but no load on the engine, the bike didn’t even try to move.
I will go through all the connections on a day off of work but I will also try to look at everything else I can get to quickly without taking the bike out of operation...it’s my primary vehicle right now.
I really appreciate all the input I have been reading in regards to this, this is one of the best groups I have been a part of.