• 4 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
    TE = 4st Enduro & TC = 4st Cross

  • Hi everyone,

    As you all know, Coffee (Dean) passed away a couple of years ago. I am Dean's ex-wife's husband and happen to have spent my career in tech. Over the years, I occasionally helped Dean with various tech issues.

    When he passed, I worked with his kids to gather the necessary credentials to keep this site running. Since then (and for however long they worked with Coffee), Woodschick and Dirtdame have been maintaining the site and covering the costs. Without their hard work and financial support, CafeHusky would have been lost.

    Over the past couple of weeks, I’ve been working to migrate the site to a free cloud compute instance so that Woodschick and Dirtdame no longer have to fund it. At the same time, I’ve updated the site to a current version of XenForo (the discussion software it runs on). The previous version was outdated and no longer supported.

    Unfortunately, the new software version doesn’t support importing the old site’s styles, so for now, you’ll see the XenForo default style. This may change over time.

    Coffee didn’t document the work he did on the site, so I’ve been digging through the old setup to understand how everything was running. There may still be things I’ve missed. One known issue is that email functionality is not yet working on the new site, but I hope to resolve this over time.

    Thanks for your patience and support!

TE449/511 Fuel injection reflash?

Just got back from a little desert trip,
The bike worked fine. Seemed to have a little more power and less flame outs. They are still there though.
One thing I found, the suspension is a big freakin marshmallow in the technical stuff and whoops. I was using ALL the travel, and I wasn't even riding all that hard.
Springs are next for this thing if it has any hope of being a raceable machine.

Yes the TE's are quite soft whereas the TXC are almost jarringly stiff. Something in the middle would be ideal.
 
Just got back from a little desert trip,
The bike worked fine. Seemed to have a little more power and less flame outs. They are still there though.
One thing I found, the suspension is a big freakin marshmallow in the technical stuff and whoops. I was using ALL the travel, and I wasn't even riding all that hard.
Springs are next for this thing if it has any hope of being a raceable machine.

It is quite raceable once suspension is setup for you and your terrain. Stock TXC springs on our 511 (stiffer than your TE) and suspension tuned for the rider.

IMG_3668.JPG
 
I had Ty Davis-Zipty Racing set up my TE511 suspension and test ride to be stiffer, much like a TXC model. Regardless of how soft or stiff you set your suspension to be, setting ride geometry is key. My race sag is set to 115mm for the California desert and 100mm for enduro woods etc.

Adding flexx bars was a major improvement in ride comfort after my suspension was fully set up. Flexx bars give positive feedback yet feel amazingly plush to the rider without having over softened front suspension. Basically, it feels like soft TE suspension, but I really have stiff TXC forks. (Blue comp, yellow rebound)

If you ride a 2011, you may want to have your rear shock shortened by 4mm or more. This was incorporated in my12 in order to stabilize the geometry at high speeds and keep the shock in the working position.
 
The rearend drop really does put you in a better geometry situation for proper setup....we did the 4mm spacer, at first I was a skeptic but quickly became convinced of its value. I find the front supple no matter what...but then I weigh 'above average' and typically ride the terrain pictured above. May have to try some of those Flexx bars someday.
 
The rearend drop really does put you in a better geometry situation for proper setup....we did the 4mm spacer, at first I was a skeptic but quickly became convinced of its value. I find the front supple no matter what...but then I weigh 'above average' and typically ride the terrain pictured above. May have to try some of those Flexx bars someday.
You are right,
I adjusted the rear spring to be effective with just the preload and increasing the compression damping and slowing the rebound. That seems fine, but the geometry changed as a result. Now the bike is kind of stinkbugged as the rear sag is not matched up with the soft front spring setup. I have tried to use the compression damping (which is all the way cranked down 1 click from all the way hard) but that hardly helped.
New springs from race tech are on the way soon. I will check with zip-ty as well per recommendations here.
Thanks guys, I will post up another thread once this suspension gets sorted.
 
It is quite raceable once suspension is setup for you and your terrain. Stock TXC springs on our 511 (stiffer than your TE) and suspension tuned for the rider.

IMG_3668.JPG

I rode that bike this last weekend and it is an amazing race bike. Super fast and stable / planted. rips a hole int he terrain and marches forward. I can see how int he right hands this is a winner (as it was). thanks for letting me try it Lonnie.
 
Stopped in at a couple of dealers and asked them about the possibility of an Akra map, one looked at me like I was talking chinese, the other said it's very possible there's one, but was arms deep in an engine rebuild so couldn't check. My bike's not up for a service for another few thousand km so I'll have to wait until then!

I'd buy a "Husqvarna Service Tool" just because I'm an inquisitive fool, but it's damn near $700!
 
It's mentioned in the workshop manual, nothing extraordinary, I just like to know how things work :)
 
I ride my '11 pretty aggressively. Trail rider - not a racer. I experienced all the problems expressed in this thread. There's no question, at least in my experience, that the following fixes made all the difference. Here they are in the order I installed them and what I observed:

1. Got the bike without the Race Map jumper and experienced okay power with frequent flame outs. Installed the jumper, felt a definite power increase, but flameouts persisted.

2. Tires. The stockers have no purpose in this world and must be eliminated. Dunlap MX71 is my tire choice for AZ desert. Not DOT, but I'm only on the street seldom with this bike and don't worry about it. YMMV.

3. Aftermarket exhaust. There are several options here - take your pick. I felt any issue didn't involve the header, just the choked out muffler with cat. I went with the FMF Power Core 4 / Silent Insert with cost and ease of installation in mind. Felt a slight increase in power, but flameouts actually worsened.

4. JD tuner. Wow. I have no affiliation with this company - I'm just a trial rider with a TE449 - but, engine-wise, this thing did the trick. Easy to install, pre-dialed, and simple to adjust. Flameouts virtually disappeared and the power is that of a completely transformed bike. Rip is the word. Gas mileage does suffer a bit, though. I'm getting about 30mpg with my riding style.

5. The suspension is soft. I'd been riding for some time with it stock and the clickers, both compression and rebound, almost buried. This helped compensate for the weak springs but made for a harsh ride over small hits and chatter. I weigh 180 pounds and, again, try to ride aggressively for a trail rider. The forks and shock went to Stillwell Performance for a tune up. Much, much better. I now have the big-hit and g-out control I need, combined with a gentle, supple feel over the light stuff. Best of both worlds.

Here are some mods I'm considering:

1. Auxiliary fuel tank. Some outfit in AU is making them, and Motosportz has them for sale. We do a lot of long-distance rides in AZ, and range is an ongoing issue.

2. Steering stabilizer. Do I need it? I don't know. There's lots of high-speed desert in AZ, and I've never experienced any head shake with this bike. It does tend to wander in the sand, though. This one is probably more for the bling and personal desire than need, at least for me.

To try and address the specific topic of this thread: I don't see how a factory re-flash is ever going to give you what you want, considering that Husqvarna will always have to work these settings within the confines of an EPA regulated perspective. Aftermarket is the way to go.

Cheers.
 
I Steering stabilizer. Do I need it? I don't know. There's lots of high-speed desert in AZ, and I've never experienced any head shake with this bike. It does tend to wander in the sand, though. This one is probably more for the bling and personal desire than need, at least for me.

No head shake experienced here either. You will notice at high speed in the sand the front-end will wander back and forth and in an instant will cause front-end dive in the sugar silt. (I know, went down at 55mph). Steering stabilizer is a must, for high and low speed.

There are a couple of sponsors on here, check out Motosportz stabilzers. Also BRP makes some super sweet triple clamps and mounts for the Scotts.
 
have had my 2012 511smr for a week 1st day was scary bike kept (i guess flame out?) in traffic . had the dealer show me were the plug was. hooked map plug no more flame outs. Maybe its me but bike had more pull in stock mode. Im running stock pipe, any info would help.
 
Sorry for the delay in responding. My experience after riding with the updated Map is no improvement. Initially the bike was better but after a day of riding the flame outs persisted. I did the TPS reset proceedure and all seemed well for a while but the flame outs returned again. I am of the opinion the flash made no change. I am back to square one and plan to re-install the JD tuner. I did ground the trottle body and move the coil ground however still experienced a flame out in driveway. Since then I have turned the idle up slightly and so far no flame outs but have not ridden bike other than diveway. I hope to find a solution to this problem. The bike was pretty good with the stock exhaust just don't want to go back there
 
Thought I would post an update. I've continued to ride the bike and play around with the FI adjustment screw. I could never get the flame outs to go away. After talking with local dealers and getting feedback from cafehusky, I decided against the reflash. It just seemed like a lot of effort and expense for not a lot of gain. I took the plunge and purchased a JD Tuner from Motosportz. I've got it installed and I've got a ride planned for Sunday. I can't wait to see how it does! Other than the flameouts, I'm really happy with the bike. The more I ride it, the more I get used to it. I ride in fairly tight woods, so I've actually been pretty happy with the stock suspension. I did feel the stock clicker settings on the shock were off. I tightened up the rebound quite a bit. This really helped the bike settle down while cornering and over "kicker" type bumps. Some day I may install some Race Tech gold valves. I've have used them in the past with great results. For the record, I'm about 180 lbs without gear. I'll post some more feedback after I get to ride the bike with the tuner.
 
OK, first of all sorry for the late report. Wow! pretty much sums it up. I rode about 35 miles of single track trails like the ones you would ride during a hare scrambles race and I took quite a few laps on an outdoor style MX track. The bike only stalled once and I'm pretty sure that one was my fault. I did break the cardinal rule of one change at a time. Besides the JD Tuner, I installed the quiet insert on the FMF powercore. I do feel that the tuner was much more influential on the bike's performance than the insert, but I did like the slight reduction in sound. Not only did the bike not stall, it seemed to have more power throughout the range. Top end and over rev were vastly improved. I really can't come up with a reason not to do this mod. I left the settings on the tuner stock. I may play with it later, but it worked so well I'm in no hurry. My throttle body screw is three turns out and I'm at 1000 feet above sea level.
 
Back
Top