shutting down rear cylinder
The rear cyl will shut down ONLY when several conditions are met....high engine temp, clutch in or in N, throttle no more than 2% open, bike at a stop. If any of these conditions change the systen turns off, and the rear cyl starts getting fuel again.
My bike came from the factory with the default setting of "on", and I just keep it that way.....at least for the Summer. I may turn it off come the winter though.
IIRC the realdeal low down on this system is on page 140 of the 08 tourong service manual.
once enabled the following conditions will trigger the ecm to engage EITMS mode (some call it parade mode).
Head temp>287
below 1250 rpm (I think - have to look it up again)
neutral or clutch disengaged
below 2 mph
if above conditions are met for a specified period of time, the ecm will cut the fuel and spark to rear cylinder - it becomes an air pump. you may hear a change in engine tone, and rpms may drop slightly.
when any of the following conditions are met, spark and fuel are turned back on
head temp <275 (or something like that)
rpm above 1250
clutch engaged in gear
above 2mph
You can enable and disable, the ECM turns it on and off.
The Best of Harley-Davidson for Lifelong Riders
I live in the Northeast so I don't get that many real hot days.
I think I will just leave it alone. If I plan on running to a different part of the country where I will be in areas of prolonged high heat I'll get the flash.
That is if I am understanding things correctly.


