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Jun 30, 2014 | 02:44 PM

#21

traildog

Seasoned HDF Member

Joined: Sep 2010

Posts: 10,236

Likes: 798

From: Indiana

Quote:

Originally Posted by Webo

I always blip the throtte when the light turns green to disengage before I take off. But if you were to try and take off very quickly it might still be in one cylinder mode. It's designed to turn off as soon as the clutch starts to release.

Thanks, I'm still on the fence about letting go of the old EVO, but, I'm sure slobbering over the 14 Street Glide...........

Jun 30, 2014 | 03:52 PM

#22

hawg20

Cruiser

Joined: Apr 2009

Posts: 228

Likes: 1

From: Shelby, N.C.

Thanks for the info! I was confused, 79 deg. cloudy and it run on one cylinder at every stop. I was getting pissed. Surely this thing ain't that hot!! Now I know. Think I'll leave mine disabled unless I get in a lot of stop and go traffic, which ain't often as I ride the mountain backroad.

Jun 30, 2014 | 04:38 PM

#23

offthewall

Stellar HDF Member

Joined: Feb 2010

Posts: 2,674

Likes: 84

From: New Jersey

Quote:

Originally Posted by traildog

Just curious, but, does it affect the way the bike takes off from a stop? Can you feel anything or, is it not noticeable?

It is instantaneous. No need to blip the throttle. You can not feel it. If you do, it's in your own mind.

The specs are in the millisecond range for activation of the rear cylinder. It is not dependent on clutch position. It is throttle position, speed and rpm based. Since the throttle is controlled by the computer there is no lag in turning it off.

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Last edited by offthewall; Jun 30, 2014 at 04:43 PM.

Jun 30, 2014 | 05:38 PM

#24

Webo

Road Warrior

Joined: Oct 2013

Posts: 1,446

Likes: 5

From: Mesquite Tx

Quote:

Originally Posted by offthewall

It is instantaneous. No need to blip the throttle. You can not feel it. If you do, it's in your own mind.

Next time it kicks in easy out on the clutch at a light and it will disengage... Guarantee... No throttle needed... Just letting out on the clutch.

Jun 30, 2014 | 06:01 PM

#25

offthewall

Stellar HDF Member

Joined: Feb 2010

Posts: 2,674

Likes: 84

From: New Jersey

Quote:

Originally Posted by Webo

Next time it kicks in easy out on the clutch at a light and it will disengage... Guarantee... No throttle needed... Just letting out on the clutch.

That actually makes sense but what my trying to say is it's not going to wait until that single clutch out event happens to deactivate it. The millisecond that you increase the throttle, it's off as well. So starting from a light, it's off long before you release the clutch and long before you could possibly sense it. At idle, the cylinders are only firing about 2 times a second each. The system activation time is such a small fraction of that firing time.

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Last edited by offthewall; Jun 30, 2014 at 06:08 PM.

Jun 30, 2014 | 06:03 PM

#26

Greg2012FLHTK

Road Warrior

Joined: Mar 2013

Posts: 1,252

Likes: 60

From: Bayfield, CO

Quote:

Originally Posted by Webo

Next time it kicks in easy out on the clutch at a light and it will disengage... Guarantee... No throttle needed... Just letting out on the clutch.

You are correct. Here is when the TSB says it deactivates, I bolded the clutch part:

Deactivation: If ANY of the following occur, the rear cylinder
fuel injector resumes operation:
• Touring (except FLHR, FLHRC, FLHR CVO, FLHRSE,
FLHP and FLHTP) and FLHTCUTG: AAT sensor drops
below 75 °F (24 °C).
• FLHR, FLHRC, FLHR CVO, FLHRSE, FLHP and FLHTP:
ET sensor drops below 275 °F (135 °C) (all configurations).
• ETC is above idle.
• Motorcycle speed exceeds 2 mph (3 km/h).
• Engine speed exceeds 1350 rpm.
• The clutch is released with the motorcycle in gear.

Jun 30, 2014 | 06:20 PM

#27

Webo

Road Warrior

Joined: Oct 2013

Posts: 1,446

Likes: 5

From: Mesquite Tx

Ok I see what your seating about the throttle. I know I've had the bike spitter just a bit leaving a stop when I first got it so I always just blip the throttle before taking off.