A couple of people on another forum have mentioned when they took their trikes in for service recently the dealers downloaded a new ECM program. They say their bikes are running noticeably cooler. Anyone heard of this download? Is there a service bulletin?

 

I haven't, but very interested in this....watching for responses....

 

I can't see it happening but hope I'm wrong, the only ECM reprogram that would actually cool the Tri down a little would richin up the air fuel ratiol.
That would dump more fuel on that catalytic converter and over time ruin the converter. I think the dealer maps are lean but then again hope HD has come down on the side of the owners and decided to run programs add enough fuel to the mix to allow for some cooling.

 

The dealer did mine and he said that it was supposed to improve mileage as there has been too many complaints about poor mileage. It might be a little better it still looks like about 200 miles per tank.

 

It seems they would have to go lean in order to improve milage, and I would bet this time of year they have more complaints about the heat. My milage ain't the best but is runs cooler than the 14.6 AFR.

Some on here will tell you that is where adjust the AFR, they should be able to richin up at idle and go lean at the higher RPM's and cool it down some where it counts the most, at idle in the heat of the summer in traffic.

 

When I had mine on the dyno the tech added some fuel at idle so it would idle cooler.

 

Hey guys, highly reccomend having dealer upgrade your ECM,s with HD free revisions. They have to hook up with their analizer to find them or see if already been done , takes just minutes, did mine yesterday seems to help in cooling don't know about performance yet. My 2010 had 2 updates installed, tech could not tell what they changed, but has to be for the better.

 

I'm assuming these new downloads are for 10's and up, because of the cat?

Nothing for the 09's?

 

Maybe that is why I don't feel as much heat on my new 2012, it already has the download - I hope so. My TG is cooler than my 09 Ultra was.

 

Ironhorsepilot, dealer has to connect to analizer to retrieve any updates. only takes a few minutes and should not charge. Some dealers automatically update on service intervals.