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 The previous version was outdated and no longer supported.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

TC450 problems after warm-up.

Kyleot

Kyleot

Husqvarna
AA Class
I have experienced a problem with my 05 TC450 this past weekend and thought maybe someone could help steer me in the right direction. After starting the bike and warm up (engine sounds normal,) the bike stalled and wont restart. I first thought this might be a battery issue, so I bump started it. The bike ran very poorly with a lot of blue smoke and very hard to keep running. Needless to say, I packed up and hauled home. After the bike cooled off and I was home, it started up again just fine and sounded normal, but after a few minutes - it stalled again and wouldn't restart.

I think maybe I have an issue with one of the exhaust valves. Maybe after warm up, the expansion of the metal is just enough to cause one of the valves to quit moving properly. I checked the fuel - found no problems here. Does anyone out there have any ideas before I tear apart the top end?
I have never had any problems with the bike before now, and there was no warning of an issue that maybe had developed over time, so I am kinda surprised to have this problem spring on me... especially so close to getting some nice weather again! I check the valve clearances regularly along with the normal oil changes ect...

Thanks in advance!
 
Pulled the hoses off the radiator and found hole in right side bottom hose near exhaust. Very little coolant in radiator. Then drained oil and found lots of coolant. This is going to be bad.... Almost have the engine pulled tonight. Will start disassembly tomorrow thru the weekend. Please let me know if anyone has any tips or suggestions. This is the first rebuild I've done on an engine this size. Thanks...
 
Oh man what a drag!!! But, fortunately none of the bearings in these are "plate type" they're all roller or ball bearings, and not as susceptible to antifreeze. Fingers crossed for you that it's not as bad as you're probably thinking it is (though you should of course very thoroughly flush the engine with a couple of "throw away" oil changes). Worst thing I can think of in terms of coolant damage would be the clutch plates.

Just like any other engine that pops the head gasket, you'll want to make sure the head and cylinder mating surfaces are true, and that neither is cracked.

It sounds like the temperature safety was doing its job and cutting the ignition...
 
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