Road king issues when hot.
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Tourer
Joined: Sep 2016
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From: Ohio
Road king issues when hot.
2006 road king 39,000 miles. Stage one with EJK tuner. First time this issue has come up. I usually commute with the RK anywhere from 20min-1hr. Plenty of time for her to get nice and hot. But today I rode with a large group for a Veterans rally. The route consisted of 30-50mph non stop for approx 10 min on a highway then we pulled into the downtown area where there was a bit of stop and go but mainly low speed maneuvering while the entire rally weaved through the police escorted route to our staging area. At the end of the route while waiting for our turn to park it I had to keep giving throttle even when idling to prevent stalling. RPMs at idle went from my usual 9-1200 down to probably 700 or less. She was really struggling to stay afloat. Same thing occurred after riding to the dealership and having to sit in a line waiting to sign waivers. When I finally got directed to the staging area I could tell something was off.
Both times the engine started running rough, more shaking/vibration, as the issue arose. That's what alerted me to it. Unfortunately due to all the other riders I could not hear my own engine well enough to determine if there were any abnormal sounds.
It stalled out once but I was able to restart it immediately without issue.
Wondering if anyone has had the same or similar issue and can point me in the right direction. I may just take it to the dealer and bite the cost but all the stories of dealers being no better and sometimes worse than a rookie with a service manual has me worried I will just be throwing money at nothing. 65 degrees, fresh full tank of gas and the issue was only present after some consistent riding followed by stop n go or slow speed maneuvering or prolonged idling. Prior to today I haven't had this issue and afterwards the bike ran as normal as it has been so far this year (after stage one upgrades) so no luck just yet reproducing the issue purposefully.
Both times the engine started running rough, more shaking/vibration, as the issue arose. That's what alerted me to it. Unfortunately due to all the other riders I could not hear my own engine well enough to determine if there were any abnormal sounds.
It stalled out once but I was able to restart it immediately without issue.
Wondering if anyone has had the same or similar issue and can point me in the right direction. I may just take it to the dealer and bite the cost but all the stories of dealers being no better and sometimes worse than a rookie with a service manual has me worried I will just be throwing money at nothing. 65 degrees, fresh full tank of gas and the issue was only present after some consistent riding followed by stop n go or slow speed maneuvering or prolonged idling. Prior to today I haven't had this issue and afterwards the bike ran as normal as it has been so far this year (after stage one upgrades) so no luck just yet reproducing the issue purposefully.
Last edited by glsec507; Apr 30, 2017 at 03:05 PM.
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From: East Tn Foot of The Dragon
Sounds like it went into "parade" mode. It shuts off the rear cylinder to help cool the motor down. If you reference your owners manual it will explain how to turn it off.
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From: SW Ohio
Twin Cam 88s don't have EITMS.
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Tourer
Joined: Sep 2016
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From: Ohio
I just searched that term since I've never even heard of it. That was a 2007 and later feature but I found this...
https://www.hdforums.com/forum/touring-models/5259-eng-overheating.html
It sounds rather similar to what I had. I am not sure what the phase 2 fuel increase would do as far as a "feelable" effect but the lower RPM and the misfiring felt right on par.
If that was in fact what I was experiencing I wonder why I got so hot so quickly on a nice cool morning...
https://www.hdforums.com/forum/touring-models/5259-eng-overheating.html
It sounds rather similar to what I had. I am not sure what the phase 2 fuel increase would do as far as a "feelable" effect but the lower RPM and the misfiring felt right on par.
If that was in fact what I was experiencing I wonder why I got so hot so quickly on a nice cool morning...
Last edited by glsec507; Apr 30, 2017 at 07:07 PM.
Seasoned HDF Member
Joined: Jan 2007
Posts: 5,537
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From: Virginia
Your engine doesn't have EITMS but does have a heat management system built into the ecm. It goes like this:
Injected Twin Cam High Temperature Idle
The 2002 and later fuel injected Twin Cam engines use a three phase heat
management system to reduce engine temperature under extreme conditions. Be
aware that a rider with a very hot engine may notice the affects of this three phase
heat management system and incorrectly assume an idle problem exists.
Phase 1 - At approximately 320 F the ECM will gradually reduce engine idle
speed until the engine temperature drops or the engine reaches 800 rpm.
Phase 2 - If engine temperature reaches 338 F the ECM richens the air/fuel
ratio to provide additional cooling.
Phase 3 - If the engine temperature reaches 356 F fuel injector pulses are
interrupted. The air drawn in and expelled helps cool the engine further.
Since there is no combustion it would be perceived as a misfire. This third
stage will only happen when the motorcycle is stationary
Injected Twin Cam High Temperature Idle
The 2002 and later fuel injected Twin Cam engines use a three phase heat
management system to reduce engine temperature under extreme conditions. Be
aware that a rider with a very hot engine may notice the affects of this three phase
heat management system and incorrectly assume an idle problem exists.
Phase 1 - At approximately 320 F the ECM will gradually reduce engine idle
speed until the engine temperature drops or the engine reaches 800 rpm.
Phase 2 - If engine temperature reaches 338 F the ECM richens the air/fuel
ratio to provide additional cooling.
Phase 3 - If the engine temperature reaches 356 F fuel injector pulses are
interrupted. The air drawn in and expelled helps cool the engine further.
Since there is no combustion it would be perceived as a misfire. This third
stage will only happen when the motorcycle is stationary
Thread Starter
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Tourer
Joined: Sep 2016
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From: Ohio
It's good to know this is possibly a normal thing I experienced but why would I get so hot so quickly. It was only 60ish outside and she wasn't even running very long.
The thread i saw someone stated this feature would show up in the ECM as being activated so I could run it up to the dealer and have them tell me if that feature was activated by my bike.
The thread i saw someone stated this feature would show up in the ECM as being activated so I could run it up to the dealer and have them tell me if that feature was activated by my bike.
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From:
It could be over heating as the bike only cools when moving.
Prolonged slipping of clutch in a parade situation would make bike even hotter.
On a side note:
How is the in-tank fuel line.
The accordion looking hose inside the tank.
That hose is known to get a pin hole over time causing a loss of full pressure.
Prolonged slipping of clutch in a parade situation would make bike even hotter.
On a side note:
How is the in-tank fuel line.
The accordion looking hose inside the tank.
That hose is known to get a pin hole over time causing a loss of full pressure.
Thread Starter
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Tourer
Joined: Sep 2016
Posts: 424
Likes: 32
From: Ohio
It could be over heating as the bike only cools when moving.
Prolonged slipping of clutch in a parade situation would make bike even hotter.
On a side note:
How is the in-tank fuel line.
The accordion looking hose inside the tank.
That hose is known to get a pin hole over time causing a loss of full pressure.
Prolonged slipping of clutch in a parade situation would make bike even hotter.
On a side note:
How is the in-tank fuel line.
The accordion looking hose inside the tank.
That hose is known to get a pin hole over time causing a loss of full pressure.