General Harley Davidson Chat Forum to discuss general Harley Davidson issues, topics, and experiences.
Sponsored by:
Sponsored by:

Thunder-Max

Thread Tools
 
Search this Thread
 
Old Jan 30, 2012 | 07:39 PM
  #1  
cardboard's Avatar
cardboard
Thread Starter
|
Elite HDF Member
Joined: Nov 2006
Posts: 3,909
Likes: 6
From: Livingston, Texas
Default Thunder-Max

Was talkin about the TM a while back on this forum and somebody from San Antonio area replied that they knew how to adjust the TM to get better fuel milage.
Does that person still visit this site ?
Thanks
 
Old Jan 30, 2012 | 08:04 PM
  #2  
chamokie's Avatar
chamokie
Supporter
15 Year Member
Liked
Loved
Community Favorite
Joined: Oct 2009
Posts: 2,056
Likes: 248
From: Milton Mills NH
Supporter
Default

Seems after spending that kind of money on a TM, call the company, they should give you a map or at the least walk you through the procedure for fine tuning that machine.
 
Old Jan 30, 2012 | 08:08 PM
  #3  
cardboard's Avatar
cardboard
Thread Starter
|
Elite HDF Member
Joined: Nov 2006
Posts: 3,909
Likes: 6
From: Livingston, Texas
Default

Been using Tm for some years now.
And I've been on the phone and had them linked into my computer.
It ain't about the bike runnin.
It runs pretty good. Its the fuel milage part.
It ain't gittin good fuel milage.
 
Old Jan 31, 2012 | 01:31 PM
  #4  
SC-Longhair's Avatar
SC-Longhair
Club Member
15 Year Member
Joined: Feb 2008
Posts: 11,483
Likes: 39
From: Passaic County, NJ
Default

Why not take your bike to a reputable dyno-tuner who is familiar with the TMAT.
 
Old Jan 31, 2012 | 01:34 PM
  #5  
cardboard's Avatar
cardboard
Thread Starter
|
Elite HDF Member
Joined: Nov 2006
Posts: 3,909
Likes: 6
From: Livingston, Texas
Default

Originally Posted by SC-Longhair
Why not take your bike to a reputable dyno-tuner who is familiar with the TMAT.
Most dyno people don't work much with a TM.
 
Old Jan 31, 2012 | 01:35 PM
  #6  
SC-Longhair's Avatar
SC-Longhair
Club Member
15 Year Member
Joined: Feb 2008
Posts: 11,483
Likes: 39
From: Passaic County, NJ
Default

It's worth a shot.

Have you tried going back to your base map and letting the AT do its thing?
 
Old Jan 31, 2012 | 01:43 PM
  #7  
cardboard's Avatar
cardboard
Thread Starter
|
Elite HDF Member
Joined: Nov 2006
Posts: 3,909
Likes: 6
From: Livingston, Texas
Default

Originally Posted by SC-Longhair
It's worth a shot.

Have you tried going back to your base map and letting the AT do its thing?
I've had at least 6 base maps in my bike in the last year.
Had TM linked in live to my computer and let them do their thing also.
This is not my 1st TM . I have ran TM for the past 5 yrs.
I've installed them in over 6 bikes during that time.
 
Old Jan 31, 2012 | 01:46 PM
  #8  
stro1965's Avatar
stro1965
Seasoned HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Feb 2007
Posts: 10,602
Likes: 721
From: Bellevue, NE
Default

Why don't you just adjust your AFR's in the rpm/throttle position range that you want to change? You might be running 13.6 right now, bump it up to 14.2.
 
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-1

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-2

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-4

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-5

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-6

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-7

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-8

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
story-9

Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

 Verdad Gallardo
Old Jan 31, 2012 | 02:28 PM
  #9  
MCSarge's Avatar
MCSarge
Stellar HDF Member
15 Year Member
Liked
Loved
Community Favorite
Top Answer: 1
Joined: Jul 2006
Posts: 3,029
Likes: 449
From: Michigan
Default

There are a couple of good videos on youtube that describe how to adjust the Tmax. I used them and got great results on my Night Train. I am getting about 43-46 mpg if I control my right hand. The base maps and the map that the dealer set up got me about 35 mpg.
 
Old Jan 31, 2012 | 02:32 PM
  #10  
cardboard's Avatar
cardboard
Thread Starter
|
Elite HDF Member
Joined: Nov 2006
Posts: 3,909
Likes: 6
From: Livingston, Texas
Default

Originally Posted by MCSarge
There are a couple of good videos on youtube that describe how to adjust the Tmax. I used them and got great results on my Night Train. I am getting about 43-46 mpg if I control my right hand. The base maps and the map that the dealer set up got me about 35 mpg.
I don't know how to do it.
That is why I was askin about the person in San Antonio. Hes about 300 miles from me.
I was gonna ask him to do it, if I could get time to make it that far.
 



All times are GMT -5. The time now is 07:21 PM.

story-0
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-1
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-2
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-3
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-4
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-5
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-6
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-7
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-8
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE
story-9
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

Slideshow: Graeme Billington's left-hand-drive Shovelhead is as much about problem-solving as it is about classic Harley form.

By Verdad Gallardo | 2025-12-30 11:27:08


VIEW MORE