• 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 The previous version was outdated and no longer supported.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 Should have knocked on wood

lankydoug

lankydoug

Husqvarna
Pro Class
Last week I was saying that my WR250 had 300+ hours on it the very next ride I noticed having to use the clutch more often like if riding a 125 also it kicked over easily, not like it's old self which would make you whimper if you weren't wearing good boots. I took it apart today and the piston still looked excellent as did the cylinder but the rings were worn out. An .015 " end gap and little to no tension. Here are some pics
View attachment 62053 image.jpg image.jpg

I did not clean the combustion chamber I simply wiped it with a paper towel. The cyl.had no signs of wear and a perfect cross hatch. I'm replacing the piston just because it owes me nothing and it's showing slight signs of wear on the intake sideimage.jpg image.jpg image.jpg
 
Reading the title of post I thought you'd had a catastrophic failure Doug! That's a good run outta that piston. Stick a wossner forged one in there n it'll be good for another 500+ hours!:)
 
Doug you ride it like a girly....where's the signs of 4 corner seizures or heaps of carbon crud on the top of the piston!!! No good mate, giving 2 stroke riders a bad name esp Husqvarna riders, showing us a 300hr bore a piston with very little wear:naughty:.........:D
 
ohmygewd said:
Doug you ride it like a girly....where's the signs of 4 corner seizures or heaps of carbon crud on the top of the piston!!! No good mate, giving 2 stroke riders a bad name esp Husqvarna riders, showing us a 300hr bore a piston with very little wear:naughty:.........:D
Click to expand...
Ya I guess I could have at least turned it into an Amsoil/VP110 fuel infomercial. Truth is I ride like an old man because I am an old man but I still keep up with some of the youngsters in the technical stuff.
 
300 hours aint bad, and the lack of four corner seizures is why its gotten to 300 not 3!
Jettings spot on by all accounts so thats the carbon build up idea ruined.
Those are good looking components for them hours, your right about piston ive seen them shatter just where the lower mark is on the intake.

You did measure across there too see if its still in spec? The bore below intake not piston.
 
Ok, I got it put back together and it is back to it's old self. I didn't miss the mid-range power until it was gone and now that it's back Woo-hooo! :banana: The Wr250 really has a solid and fast engine, it's true that it's a bit heavy but for the dependability and power is worth it.

I ordered a piston from Halls at the beginning of the week and probably would have had it by Friday except for a mix up I caught when they emailed me my receipt... they had me down for a 300 piston which also explained the sticker shock (the 250 piston is about $40 cheaper). It's all good now and thanks to Halls for stocking parts for our Huskys, they are much better than my local YamaKawaHonda dealer.
 
What piston did you get? I'm thinking I might freshen the top end too. Did you experience any low rpm lug noise before the rebuild? Like a piston slap /knock?
 
Huskynoobee said:
What piston did you get? I'm thinking I might freshen the top end too. Did you experience any low rpm lug noise before the rebuild? Like a piston slap /knock?
Click to expand...
I ordered the stock factory piston, my cylinder was stamped "C" so I ordered the "C" piston. I didn't have any noises and actually I could have just bought rings because the piston wear was minimal but rings would have probably only got me another 100 hours and I didn't want to risk a blow up. For a factory piston, rings pin & bearing, head "O" rings and a base gasket it was $272.00 which still seems high compared to a Weisco kit for my yz125 @ $150 with gaskets but I guess I could have saved some money by going with a Vertex in the Husky. The reason I went with factory was that I'm hoping to get another 300+ hours out of this one.
 
That's not bad. Glad to know I have option of the factory piston still. I think I'll tear it down and have a look after this weekend.
 
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