engine temp management system
Club Member
Joined: Apr 2013
Posts: 7,675
Likes: 8,401
From: Utah
Why do people post things like RTFM? Did it help the person who asked a question?
Now I have manuals, I read them but sometimes I get stuck, like right now where does it reference ambient air temp? What I see is EITMS comes on at temps greater than 284*f, twist grip at idle, Speed under 1 mph, clutch lever pulled in or at neutral. Did Coinmans dealer nail it???
Because the updated manual is correct.
There was a whole lot of discussion about this on here about 20 months ago.... I bought mine 21 months ago, and right away found that something was "wrong", coming from a 2011, I knew well how the EITMS worked, and it was different on the '14.
Then the threads started, then the M-1351 bulletin came out, then they corrected the manual.
That is the information shown from the older models.
Information has been updated in the later manuals
The reason is RIDER COMFORT.
So yes, there is a reason.
If it was critical for the bike, we wouldn't have the option to disable it.
There was a whole lot of discussion about this on here about 20 months ago.... I bought mine 21 months ago, and right away found that something was "wrong", coming from a 2011, I knew well how the EITMS worked, and it was different on the '14.
Then the threads started, then the M-1351 bulletin came out, then they corrected the manual.
That is the information shown from the older models.
Information has been updated in the later manuals
M-1351 Service Bulletin September 17, 2013
EITMS does not operate within the first four minutes after starting the engine.
Activation:
If ALL of the following conditions are met, the EITMS turns off the rear cylinder fuel injector.
•Touring (except FLHR, FLHRC, FLHRCVO, FLHRSE) and FLHTCUTG: AAT sensor exceeds 80°F (27°C).
•FLHR, FLHRC, FLHRCVO, FLHP and FLHTP: ET sensor exceeds 288°F
EITMS does not operate within the first four minutes after starting the engine.
Activation:
If ALL of the following conditions are met, the EITMS turns off the rear cylinder fuel injector.
•Touring (except FLHR, FLHRC, FLHRCVO, FLHRSE) and FLHTCUTG: AAT sensor exceeds 80°F (27°C).
•FLHR, FLHRC, FLHRCVO, FLHP and FLHTP: ET sensor exceeds 288°F
So yes, there is a reason.
If it was critical for the bike, we wouldn't have the option to disable it.
Last edited by SafetyMan; May 20, 2015 at 07:46 PM.
Seasoned HDF Member
Joined: Jan 2006
Posts: 11,467
Likes: 2,996
From: Charleston, SC
And the funny thing is, by nearly all accounts it does nothing for rider comfort, in the short span of time it's actually on. Maybe if you were idling for an hour... maybe.
The only thing it does do very, very well is generate thread after thread on websites like this one 10 times a week.
Twin-cooling though... man-oh-man does that work well. It's pretty much awesome in comparison.
The only thing it does do very, very well is generate thread after thread on websites like this one 10 times a week.
Twin-cooling though... man-oh-man does that work well. It's pretty much awesome in comparison.
Last edited by lp; May 20, 2015 at 07:53 PM.
Intermediate
Joined: May 2013
Posts: 26
Likes: 0
From: georgia
I didn't see where the OP stated what year/model bike he has (unless I missed it)
But, According to my owners manual on my 2015 RG:
The EITMS can provide limited cooling of the rear cylinder for riders who frequently find themselves in prolonged idle conditions OR traffic congestion.
When the engine temperature reaches a predetermined point (doesn't say what temperature), the EITMS turns off the rear cylinder fuel injector. The rear cylinder becomes an "air pump" which works to cool the engine.
EITMS activates (turns rear cylinder off) when ALL of the following conditions are met:
*Ambient temp. or engine temp. exceeds temp threshold
*Throttle control is at idle
*Vehicle speed under 1 mph
*Engine speed under 1200 rpm
EITMS disables (rear cylinder begins firing again) if ANY ONE of the following occurs:
*Ambient temp OR engine temp falls below temp threshold
*Throttle control is above idle
*Vehicle speed exceeds 2 mph
*Engine speed exceeds 1350 rpm
*Clutch is released with vehicle in gear
And of course you can disable the EITMS all together if you desire. So my dealer did explain some aspects, though not all in detail.
But, According to my owners manual on my 2015 RG:
The EITMS can provide limited cooling of the rear cylinder for riders who frequently find themselves in prolonged idle conditions OR traffic congestion.
When the engine temperature reaches a predetermined point (doesn't say what temperature), the EITMS turns off the rear cylinder fuel injector. The rear cylinder becomes an "air pump" which works to cool the engine.
EITMS activates (turns rear cylinder off) when ALL of the following conditions are met:
*Ambient temp. or engine temp. exceeds temp threshold
*Throttle control is at idle
*Vehicle speed under 1 mph
*Engine speed under 1200 rpm
EITMS disables (rear cylinder begins firing again) if ANY ONE of the following occurs:
*Ambient temp OR engine temp falls below temp threshold
*Throttle control is above idle
*Vehicle speed exceeds 2 mph
*Engine speed exceeds 1350 rpm
*Clutch is released with vehicle in gear
And of course you can disable the EITMS all together if you desire. So my dealer did explain some aspects, though not all in detail.
Cruiser
Joined: Jan 2014
Posts: 233
Likes: 55
From: Sarasota Fl
Because the updated manual is correct.
There was a whole lot of discussion about this on here about 20 months ago.... I bought mine 21 months ago, and right away found that something was "wrong", coming from a 2011, I knew well how the EITMS worked, and it was different on the '14.
Then the threads started, then the M-1351 bulletin came out, then they corrected the manual.
That is the information shown from the older models.
Information has been updated in the later manuals
The reason is RIDER COMFORT.
So yes, there is a reason.
If it was critical for the bike, we wouldn't have the option to disable it.
There was a whole lot of discussion about this on here about 20 months ago.... I bought mine 21 months ago, and right away found that something was "wrong", coming from a 2011, I knew well how the EITMS worked, and it was different on the '14.
Then the threads started, then the M-1351 bulletin came out, then they corrected the manual.
That is the information shown from the older models.
Information has been updated in the later manuals
The reason is RIDER COMFORT.
So yes, there is a reason.
If it was critical for the bike, we wouldn't have the option to disable it.
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If you think that piston and rings flying around inside that cylinder at 1000 rpms is going to cool the engine, you are mistaken.
Want proof? Go fire up grandad's old air compressor, let it run 10 minutes, and go lay your hand on the pump....
Same concept, draws air in, applies horsepower to create pressure, no combustion.
You are STILL generating heat via friction and compression.
Thank you Sir.
Last edited by SafetyMan; May 20, 2015 at 11:07 PM.
