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 The previous version was outdated and no longer supported.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

First valve check. .25mm and .18mm. Should I shim?

AndrewS

AndrewS

Husqvarna
AA Class
I did my first valve check at about 250km. One exhaust valve is at .25mm and one intake is at .18mm. The other two valves are within spec.

Should I shim them both? Reading other threads, it sounds like they tend to tighten over time. I'm not sure how much is reasonable to expect them to change, given that others have had them not move at all.

Also, I'm guessing I should shim them to the upper limit (i.e. .20mm and .15mm) with the expectation that they'll tighten up?
 
I think I would go ahead and shim them because I dont think they will move much more and I doubt they will move enough to put them in spec. I have about 100hrs on mine and shimmed it once at about 20hrs and they havent moved since.
 
It's been a busy day, and honestly not everyone thinks in metric :doh:

So I dug out my manual... for my 2006 TE250...

Intake: 0.004 to 0.006", or 0.10 to 0.15mm
Exhaust: 0.006 to 0.008", or 0.15 to 0.20mm

The shims come in increments of 0.002", or 0.05mm

So the exhaust is too loose by 1 shim size, and changing 2 sizes would make it on the tight end of spec.

Changing that intake by 1 shim size would you perfectly in spec.



If it were me, I would seek out the different shim sizes to be in spec. As slow as the valves move, compared to other brands, I really would not worry about loose vs tight end of spec too much.

I certainly would not miss an opportunity to go on a ride with the valves the way they are now though. :)
 
Looks like shimming is the way to go. Thanks both for the responses.

Dean, you anticipated my next question... that I can ride in the meantime. :)
 
You could spend the time shimming, but if it was my bike, I'd leave it and go riding.

Being a bit too loose(ie. .001 or .002") won't hurt anything & they're going to tighten up over time anyways.

If they were loose by a bunch, more than say.010", then it would start to affect power output and would be a bit hard on the valvetrain.
 
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