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[1abastarsmda]

I've heard a lot of buzz about the rear cylinder shutdown to keep the bike cooler.  Is that something that the 2009 110" already has or is it something that I need to request from the dealer to download?

I got stuck in traffic jams the other day and the engine started to get that feeling (or sound) like it was overheated.  A few times, it almost sounded like the engine was going to cut out on me.  I gave it a bit of throttle.  After the fact, I started thinking about it and wondered if perhaps that was the rear cylinder shutting down and that perhaps I should have let it happen, rather than hitting the throttle.  Anyone know the answer to the above, and if it already has this feature, should I have stayed off the throttle?

[Twolanerider]

Use the "search" tool up above and you should find several threads discussing this.  The 09s do have it out of the box.  Revving it a bit does take it out of heat management mode for the moment.

[1abastarsmda]

I did try to search, but I must not have used a good search query to find what I was looking for.  Anyway, so what you are saying is that what I was experiencing may have been the rear cylinder shutdown and if I had stayed off the throttle, I may have cooled the engine down a bit.

[Gone Fishin']

I did try to search, but I must not have used a good search query to find what I was looking for.  Anyway, so what you are saying is that what I was experiencing may have been the rear cylinder shutdown and if I had stayed off the throttle, I may have cooled the engine down a bit.

Use "rear cylinder shut down" as the search term. Note: You should try these kind of searches from the main page (HOME), not from a specific forum.

[Dan_Lockwood]

I've heard a lot of buzz about the rear cylinder shutdown to keep the bike cooler.  Is that something that the 2009 110" already has or is it something that I need to request from the dealer to download?

I got stuck in traffic jams the other day and the engine started to get that feeling (or sound) like it was overheated.  A few times, it almost sounded like the engine was going to cut out on me.  I gave it a bit of throttle.  After the fact, I started thinking about it and wondered if perhaps that was the rear cylinder shutting down and that perhaps I should have let it happen, rather than hitting the throttle.  Anyone know the answer to the above, and if it already has this feature, should I have stayed off the throttle?

I just did a search on "Parade Mode", which is the name that is used in most publications on this feature.

Here is the largest link to the parade mode topic: http://www.cvoharley.com/smf/index.php?topic=25526.0

This thread is 12 pages long, so you'll probably find out everything you ever wanted to know about it.

I have my '08 SERK in for the 5,000 mile service right now and I'm having them update my ECM to have this function.  Even though my service manual explains it and I've been in some pretty hot conditions, it's never turned on for me.

They thought it should be programmed into mine, but they could not get it to turn on with the throttle like the new bikes.  I understand '08s after about May have this updated program.

Read and enjoy the great information.

    

[grc]

Quick answer is that late '08's and all '09's come with the rider controlled version.  You may have to go through the engage/disengage sequence to make certain if yours is turned on or off.  And the quick answer for the throttle question is that throttle application will cause the rear cylinder to resume normal operation, as will engaging the clutch.

http://www.cvoharley.com/smf/index.php?topic=28689.msg483179#msg483179

Jerry

[Wildrat]

What is the deal with the 06's? I have a 06 SG and it has some sort of heat management that starts idling the engine down, and down, and down. I don't like it much. This last weekend the political morons in Pinellas County, Florida had the Iron Man trials shutting down the major arteries in the county for the bicycle part. Both the bikes I thought were about ready to turn tires up and die from heat stroke. I could have melted lead on the motor, it seemed like it anyway. I will have to see if I can find more on this. It seems like I read somewhere in a bulletin that the dealer could dis-able it, but I'm not sure. I'll also read the threads that GRC and Dan posted.

[Gone Fishin']

What is the deal with the 06's? I have a 06 SG and it has some sort of heat management that starts idling the engine down, and down, and down.
(...)

I think starting from '05 we had a heat management mode added to the ECM functionality. Any modification without an additional device, like a power commander or SERT will most probably not work.

[Wildrat]

I had a PC3USB on the bike before it shorted out for some reason. It had no effect on the heat management, when it got hot idling, it idled down, down, down, dead.

[grc]

Wildrat, the '06 and earlier models don't have an option to shut the system off.  That began with the '07 models, first by way of a separate ECM calibration the dealer could load, and then midway through '08 it was changed to a system the rider could turn on or off.  The attachment explains the '06 and earlier model heat management systems.

Jerry

[Wildrat]

I read and saved the chart. I'm telling ya it would not be bad if it worked like that, especially the part that it will increase idle to keep the battery charging, BS, my bike died 3-4 times last weekend at idle.I thought the motor was going to melt. I had just changed the oil the day before, all I was thinking was it needs to be changed again. Thanks for posting the 06 heat chart. Did it come out of the service book? Those Harley books come in handy at times. the electrical diagrams are worse than the ones on an F16 or Bomber. They have those foldout pages and you will have 3,4,5 pages open just to trace a wire.