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 The previous version was outdated and no longer supported.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

125-200cc Wr125 head differences

rockdancer

rockdancer

Husqvarna
Pro Class
Some queries -

1) Whats the difference between 06 - 08 head and 09 on .
I know its has 5 ports but what does this mean ? Is it much better?

2) Can an older 144 head be used on the newer engine?
eg If i was to upgrade to 144 and take it of when selling can it be put on the newer bike

3) With the OEM 144 kit are they abled to be increased to 167 and how is this done ? Stroking or just bore size. ( I guess this is the advantage of OEM kit)
one more-
4)Do the modified powervalve spring kits work on the older motor?
Thanks :thumbsup:
 
Rock Dancer,

1) The heads are essentially the same. The cylinder on the older 125's has an extra bridge in the side transfer ports. I am sure there are small flow advantages to the more open transfers on the later cylinders.

2) Yes the older cylinder bolts right on and visa versa.

3) The newer cylinders can not be bored out to 167 like the older cylinders. The 58mm bore of the new OEM kit is about it for bore and you would need to stroke it to gain more cc's over the 144.

4) The power valve springs work for 02 and later 125's. One note is that it seems that the 125 likes stiffer springs than the 144 and I guess this should be pretty intuitive. My 144 likes the lower and slower opening power valve much more than a number of 125's that guys have tried them on. They still offer the ability to smooth out the hit on the 125 with the inner spring.

I also think that you need to adjust the sealing edge of the power valve when you do the 144 kit. It needs to only be about 2mm wide from the top and if they only regrind them for the extra bore the sealing surface will be much wider and actually lower. You will be stunned by how well the 144 runs on the low end and mid-range when you adjust the power valves sealing surface as well.

Walt
 
Thanks Walt - I was hoping you would respond - I am sure this is useful information .
Theres no stopping me from getting that 144 kit in the near future.
 
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