• 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 The previous version was outdated and no longer supported.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 Part of powervalve broke down...

Mr_X

Husqvarna
A Class
Hi,

This pic is taken from my SM125 2008. Apparently the yellow marked thing above the carb broke down, which result in super boggy-ness almost immediately after the valve open. Now my bike cant go on high RPM. Anyone know this electronic thingy can be repaired? or should i order a new one?

60233_163801126964084_144561882221342_572688_5553953_n.jpg
 
My guess would be ether a throttle position sensor or a device that makes it lean out on top like the YZ carbs have. If it shares a shaft with the slide actuator and moves when you rotate the throttle it is a throttle position sensor. This would explain why you have a bog when it is not working.

Edit...

Looks like a Deloto VHST carb with throttle position sensor...

http://www.dellorto.co.uk/merchandise/products.asp?CategoryID=2&PartsectionID=44
 
Thanks guys, yup its a 28mm dellorto carb. I fixed this problem by changibg to a keihin pwk 35mm. But another problem occurred... My piston seized, due to lack of 2t oil.
 
http://www.dellorto.it/prodotti.asp

a VHST 28 with optional TPS Perche??????

these are definitly not Husky problems...you may want to stick with OEM stuff or the carb set ups that are tested among riders on this site. 32:1 is a very safe bet. Hope you get her fixed up.

That thing on your carb is a TPS (throttle position sensor) it talks electrically to the ignition module. The powervalve is the mechical device that changes the exhaust port opening in relation to rpm.
Hope you get her fixed up, Huskys need to be everywhere!!
 
The stock sm125 comes with the dellorto carb as OEM. Anyway, does a scratched piston and piston ring affect power loss?
 
salut oui nouveau tps,qu'il va falloir le changer et regler avec la procedure!
ton serrage doit venir de la
 
daxx;130870 said:
salut oui nouveau tps,qu'il va falloir le changer et regler avec la procedure!
ton serrage doit venir de la

welcome. This is what google translate thinks you said:

hello again yes tps, he'll have to change and adjust with the proceedings!
tightening tone must come from the
 
Mr_X;123179 said:
Thanks guys, yup its a 28mm dellorto carb. I fixed this problem by changibg to a keihin pwk 35mm. But another problem occurred... My piston seized, due to lack of 2t oil.

Did you mix the oil \ gas ratio incorrectly?
 
Yes, Scratched piston will indeed hurt power. You need a rebuild before you ruin cylinder if you haven't already.
 
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