HarleyTechTalk

Technical Forums => General => Topic started by: Jim Bronson on July 07, 2021, 07:11:46 PM

Title: Does EITMS Work?
Post by: Jim Bronson on July 07, 2021, 07:11:46 PM
It is getting pretty toasty around here, and I'm thinking of activating EITMS for the summer season. I don't have a temperature gauge, so I'm wondering whether it really works.

Thanks.
Title: Re: Does EITMS Work?
Post by: Ohio HD on July 07, 2021, 07:27:47 PM
It allows the rear cylinder to cool as it stops running at idle at higher engine temperatures. The front cylinder is still running and when sitting still will still get hotter as it sits in traffic idling. I always turn it off.

If it's that hot, you need to get it out of traffic and stop idling the motor. 
Title: Re: Does EITMS Work?
Post by: kd on July 07, 2021, 07:50:54 PM
Use the heavier weight oil per your manual and consider a good full synthetic brand.  Good full Syn oil DOES perform better in heat than Dyno.
Title: Re: Does EITMS Work?
Post by: Just Nick on July 07, 2021, 09:22:45 PM
In my opinion no it does not work. It causes more wear and tear on the crank then it benefits anything else. That's just my opinion though.
Title: Re: Does EITMS Work?
Post by: Karl H. on July 07, 2021, 11:15:43 PM
Right! The EITMS is just a comfort feature for rider and passenger preventing burned legs by using the rear cylinder as an air pump. As said already it is not good for the engine.

Karl
Title: Re: Does EITMS Work?
Post by: Wookie3011 on July 08, 2021, 02:54:13 AM
Going to have to agree with the rest. Anytime it has kicked on for me its done zero to cool the motor. I never considered the forces on the crank. Interesting
Title: Re: Does EITMS Work?
Post by: Appowner on July 08, 2021, 04:24:43 AM
You're better off with a quality oil cooler sporting a couple of fans.  Of course if you're like me you consider that a fuggly solution.  OK for a bagger but not a more basic bike.  IMHO

But the alternative is to change some of your riding habits so you don't sit in traffic idling.  Not always easy either.
Title: Re: Does EITMS Work?
Post by: Jim Bronson on July 08, 2021, 08:26:11 AM
Thanks for the comments. I think I'll leave it off. I can't believe it would make much difference for the short time the cylinder is deactivated. I agree that the constant on-off cycling in traffic wouldn't be good for engine wear. I don't usually ride when the temp gets above the low 90s, so we're not talking Death Valley rides.
Title: Re: Does EITMS Work?
Post by: MaxxV4 on July 22, 2021, 12:01:43 PM
Mine has been activated but has not come on for a long time. (Made me wonder if it still worked.) Just last week, we we westbound on I-80 when traffic came to a standstill. It took 25 minutes to reach an exit that was less than 4 miles away. This in near 100 degree temps. The eitms did come on in that situation. If nothing else, I use it as a sign to get off the road and cool down.