Ignition/Tuner/ECM/Fuel Injection Need advice on ignition issues? Questions about a tuner? Have questions about a EFI calibration or Fuel Injection? Tips on Engine Diagnostics, how to get codes, and what they mean. Find your answers here.

Tmax First Run

Thread Tools
 
Search this Thread
 
Old Jan 12, 2008 | 02:51 PM
  #1  
rbabos's Avatar
rbabos
Thread Starter
|
Banned
Joined: Mar 2007
Posts: 3,706
Likes: 7
From: Woodstock, Ont , Can
Default Tmax First Run

Had the unit installed for a while now but winter and all left it alone. Well today, couldn't stand it any longer and went for it. Since it came with preloaded map I was even more curious as to how it behaved. Taped the throttle so I wouldn't accidently use it and taped the oil fill plug so it would not blow out during this. Never has before, but Murphy is alive and well for some of us. I even took out a fan to cool the pipes , as one other run with the stock ecm made them glow red idling. Turned the key on and hit the start button, and with a couple of revs it fired up and ran, rather well actually in a slightly higher rpm as it should when cold. As it heated up the idle dropped to what I felt was normal. I don't have a tach and wasn't linked up to the ecm. Let it run until I was damn sure I hit 285-290 on the head. I'm a welder, you see, so I can guess reasonably close with a few tricks. Shut it down and untaped the throttle. Let it cool down a bit and did a restart. The startups are more gentle than with stock ecm, probably a timing thing. As I advanced the throttle slowly I could detect an ever so slight lag at around 1300 rpm more or less. This can be seen on the maps at the point timing targets start to climb with rpm. Transitions are smooth from there and that mini lag is totally meaningless from an operational standpoint. As the rpms are increasedthe engine will maintain a smooth effortlessstate all the way up, which the stock unit really sucked at. After the first run the fan was shut off but I never saw the pipes glow. Now on to some questions.
On the stock ecm, when the key was turned on you can hear the fuel pump. That is the same with tmax, however with the stock ecm when you turn the key off there is also some noise in the tank for a second or two almost like a reversing pump sound . This noise is absent with the tmax. What was that original noise and it's purpose?
I did shift up through the gears sitting still but no 6th gear indicator . Am I to assume you need to be moving before that feature will work as it always had a delayed reaction before?
Until I can get it out on the road I won't know any more, but it seems to run really well in the garage and that nagging question, (will it run) has been put to bed.
Ron
 
Reply
Old Jan 12, 2008 | 09:41 PM
  #2  
SGDude's Avatar
SGDude
Cruiser
Joined: Sep 2007
Posts: 207
Likes: 0
From:
Default RE: Tmax First Run

Yeah, I believe you have to be over 40MPH for the 6th gear indicator to come on.
 
Reply
Old Jan 12, 2008 | 10:40 PM
  #3  
danike's Avatar
danike
Advanced
Joined: Nov 2007
Posts: 62
Likes: 1
Default RE: Tmax First Run

You have to be moving for 6th gear light to work.
 
Reply
Old Jan 13, 2008 | 10:44 AM
  #4  
rbabos's Avatar
rbabos
Thread Starter
|
Banned
Joined: Mar 2007
Posts: 3,706
Likes: 7
From: Woodstock, Ont , Can
Default RE: Tmax First Run

That's what I wanted to hear . Thanks.
Ron
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
HDV-GLIDE
Touring Models
4
Aug 15, 2013 12:53 PM
Falcon195
Sportster Models
90
Jul 7, 2012 09:51 AM
T_Sebastian
Touring Models
35
Jan 8, 2012 07:08 AM
SIM
Touring Models
7
Aug 27, 2007 03:28 PM
Radman51
Touring Models
11
Jan 14, 2007 12:05 PM




All times are GMT -5. The time now is 02:15 AM.

story-0
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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