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 The previous version was outdated and no longer supported.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

Vacuum Hose

R

racer514

Husqvarna
AA Class
Ive been having problems with my 08 TE450. Backfires and flames out. In the summer is would get better as I ride but the last ride was cold all weekend and it seemed to be worse. I decided to check the fuel pump for the fix and found that it was fine and in place where it should be. While clenaing the area under the tank I found the vacuum line from the intake side of the head just hanging there unplugged. On carb bikes Ive worked on, this would go somewhere or get plugged up. Something tells me this should not be open and causing a vacuum leak and should be plugged. Strange thing is, this should cause a lean condition and the plug I took out of it was still a little rich. Any ideas?
 
Update... I started the bike and feel no vacuum at the hose. Nor does it change anything when I block it off??? Strange?
 
Just remembered I had a vacuum gauge and it does pull vacuum. 6 inches. Ill try to plug it and see how she runs.
 
Nice, huh? lol. Strange why it didnt change the way it ran (in the garage) but i guess thats the beauty of fuel injection... Hopefully that plus the throttle stop tweak I did tonight makes me a happy rider tomorrow.
 
Man, a picture would really help me understand where exactly you're talking about. Was it from the fitting on the left side of the throttle body that was part of the full emissions setup or something?
 
It is from the fitting on the left side of the throttle body (actually in the head but on the left side of the throttle body). I believe it originally went to something form the emission set up that the dealer removed when they did the power up kit. It reminds me of the vacuum hose that used to go to a vacuum operated petcock on a carburated bike.
 
See a lot of these plugged with a vacuum plug, or hose just doubled over and crimped together The best way to do it is to use a 5mmx10x.8 allen bolt with 5mm copper washer and red loctite.
A proper fitting screwdriver is a must also some patience, as the small brass fitting slots will tear off easily then it's small vice grips and 15 min to get it out. Take care replacing it with bolt because the threaded hole is on an angle and will give a false feeling when trying to start the bolt. Will and can crossthread easily.
Reason vacuum plug is not good enough if have Intake backfire can blow it off and wouldnt even know it. Also they will rot out with our new gas and not know it also.
If LH intake valve tightens up usually because it has injested fine dust into the intake and it is on the lh side causing the valve to lap itself.

Later George
 
George,

Awesome answer. The short easy ride was successful with the hose plugged (and the throttle stop tweak). Now I will go ahead and make a permanent repair and go visit Ferracci for a remap. Thanks again to all.

Keith
 
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