• 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 The previous version was outdated and no longer supported.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!

JD/Sprocket update

motomanic

motomanic

Husqvarna
A Class
After installing a JD tuner and a change of gearing to 14/52, the bike was transformed, lifting very easy on the throttle, and reving quickly,now hitting the rev limiter.I never bounced of the limiter before.
The rear was a 52T Supersprox (stealth), but didn't seat perfectly on the hud , rotating of centre causing tight/ sagging chain effect. I'm now waiting a reply from Supersprox, for a replacement. Mean time a new Renthals 51T is on the rear, causing the rear wheel to be slightly further back to take up the chain length, so a longer wheel base and standard size rear doesn't lift as easy.
Anyone else experienced an ill fitting rear sprocket (egg shape Centre hole),or possibly a 1-2mm oversize hole ?
Do all you JD owners hit the rev limiter?I wasn't expecting that.
 
Is this a common problem,I haven't read any thing about this, would a dyno tune eliminate it?Would the TXC air box cover help?
How would I reflash the ECU and why would that render the JD obsolete?
I didn't seem to hit this with a 53T rear, and it was livelier with this, which is what I'll be changing back to.
 
Ive never noticed a 7k flat spot in either my 511 or 449, but Ive alway run the JD and almost exclusively off-road where those sorts of rpms arent often needed on a bike this powerful.

The JD adds or subtracts fuel only from the ECU map. The #3 map set already adjusts the fuel and other parameters to optimize for "off-road" use. In most if not all cases that will render the JD irrelevant, of course you can keep the JD and use it to continue adjusting from the #3 maps if you happen to have the mad scientist gene that forces you to try to do it just "a little bit better".
 
Just spoke to a Husky dealer who will RE-Flash my ECU, for £40:00, he asked (email) if it was for bike running Akroprovic, so I assume this is the map 3#?, So this makes my £160 JD obsolete?
 
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