• 2 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
     WR = 2st Enduro & CR = 2st 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 The previous version was outdated and no longer supported.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!

250-500cc WR250 Post Mortem

Kevin Sorce

Kevin Sorce

Husqvarna
AA Class
Well if you read my other post on my WR250 failure yesterday, I tore down the top end today (see pic). So the rear skirt is cracked, pieces of metal everywhere. The cylinder actually doesn't look too bad and MIGHT be reuseable with a honing, but it will need close inspection and measurement. I just read the Piston Problem Troubleshooting guide from Eric Gorr's site and this excerpt is EXACTLY the symptoms that occured before my bike died.

"A cracked piston skirt happens when a piston is allowed to run too much piston to cylinder wall clearance, or when its simple worn out. Cracks appear on the intake side of the piston, and the engine makes a rattling noise, especially at idle. If the piston runs too long sometimes the skirt can break off and cause catastrophic engine damage".

It just seems weird that the bike ran pretty well shortly before all this happened. I will still look for other possible causes. In addition, I will split the cases and do the crank too. No sense in investing in the top end even if I believed the bottom was cleaned out and within spec.photo.JPG
 
The up side of this is you will probably have it like new for less than $400 rather than $2000- $3000 if it was a 4t.
 
firecrotch said:
how many miles you think?
Click to expand...
Remarkably, everything inside appears to be the original piston, and the bike is a 99". Can't tell miles, but I'm sure lots of hours since 99", and 2 owners before me. If this failed just due to wearing out, the moral of the story is its much cheaper to replace the piston and rings every so often, even if the bike still runs pretty good!
 
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