• Husqvarna Motorcycles Made In Sweden - About 1988 and older

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 The previous version was outdated and no longer supported.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

1983 WR125 Cylinder Head Confusion

NYWR430

NYWR430

Husqvarna
AA Class
So I picked up a 1983 WR125 with a broken piston and damaged cylinder. Before disassembling, I picked up a brand new WR125 replacement cylinder with new liner and corresponding NOS piston. Upon disassembly, it was obvious that someone had installed a 175 cylinder and piston on the WR125 bottom end. The 175 has an equal stroke to the 125, but a larger bore. The metal ring at the top of the liner where the cylinder head seats against is significantly larger than the sealing ring on the WR125 liner. When I put the head from the 175 cylinder on the new 125 cylinder, there was significant lateral play (side-to-side) because the sealing ring at the top of the liner was smaller than the inner diameter of the cylinder head. I figured that this was a dedicated 175 head and purchased a head advertised for a WR125. Upon its arrival, it was identical to the one I already had that was larger than the 125 ring. My question is, does anybody have a part # sheet that shows the correct part# for a 1983 175? The standard parts sheet listed on this site doesn't even show a 175 as available for 1983 or 1984. Does anybody have a 1983 WR125 head available where they could measure the inner diameter of the combustion chamber? Does this extra "slack" between the ID of the head and the OD of the liner really matter? Maybe the head was used on both the 175 and the 125 engines, but I don't have a part number for the 175 to check against.
 

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Wow, thanks for the info Visiteur1948! That clears it up then, I guess I do have the correct cylinder head for the WR125 cylinder. Do you have a photo/measurement of the top of the 125 cylinders?
 
What year cylinder is that one? I was referring to the measurement across the top of that ring. Thanks for looking at this!
 
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