Installed Thundermax & True Duals

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Oct 3, 2007 | 03:44 PM

Ultrasweet

Thread Starter

Road Captain

Joined: May 2007

Posts: 675

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From: Willis, Texas

Installed Thundermax & True Duals

Today I installed the Tmax Auto Tune and the Rinehart True Duals. Haven't ridden it much so I don't know if the Tmax is working right yet or not but the 07' Ultra runs a lot better. One problem to report though. I rode it about 5 miles to work. Shut it off for about 15 minutes. Rode it to the bank about 8 minutes away. Came back out a few minutes later and the bike wouldn't run worth a flip. It would not stay idling. It would die and I would restart about 3 or 4 times without any improvement. I finally turned the ignition switch off and turned it back on. The bike started right up and ran fine. I hope this is a normal part of the computer trying to learn the setup of the bike. The other thing I noticed is when I hit the key the tach jumps around sometimes. We will see how this thing pans out but I can tell you so far that one of these 2 things or both has made a major improvement in the bikes performance. I got in my IDS today and I may let the dealer do the install. He said he would do the job for 1.3 hours labor. He said they had not installled any yet and was very interested in how well they work. You would think these guys would read these forums to get some first hand knowledge of the problems and fixes out there. I sure would. T.

Oct 3, 2007 | 04:02 PM

drdiesel1

Road Captain

Joined: Jul 2007

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RE: Installed Thundermax & True Duals

You need to watch your engine lamp. When starting the bike you need to turn the key to on and wait for the engine lamp to go out, then start the bike.
The IAC valve needs to reset. This is what controls your idle. It counts every-time the key is turned on. If you interrupt it before it can reset, your bike will not idle/runproperly.
Try it and see.

Oct 3, 2007 | 04:23 PM

PhilM

Ultimate HDF Member

Joined: Feb 2006

Posts: 5,939

Likes: 3

From: TX

RE: Installed Thundermax & True Duals

Someone recently posted a thread about an offering from HD for "free install" of IDS for 07 bikes when YOU buy the unit. I would check into that, it just might save ya $100.

Oct 3, 2007 | 08:58 PM

Ultrasweet

Thread Starter

Road Captain

Joined: May 2007

Posts: 675

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From: Willis, Texas

RE: Installed Thundermax & True Duals

I used to wait for the light to go out before cranking but I stopped doing it because someone on here said it was uneccesary. I gotta tell you, I just got back from riding 2 up about 40 miles and my bike pulls better 2 up than it used to solo. I am impressed. Another thing, that loud clunk I used to get when starting is gone, gone, gone. If the IDS lives up to expectations, I will go start selling Harleys, NOT, but will probably recommend them more. The only problem I have is the extra money I am having to spend to get my bike to run the way it should have off the showroom. T.

Oct 3, 2007 | 09:06 PM

masterblaster

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Joined: Dec 2006

Posts: 8,961

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From: Conroe Texas

RE: Installed Thundermax & True Duals

Ultrasweet, watch for decell popping and top end engine noise when you are at 2500 - 3000 RPMs. Dont want you too happy. You will love the IDS though.