• 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 The previous version was outdated and no longer supported.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 Knocking sound when slowing down

Mr_X

Mr_X

Husqvarna
A Class
My wr125 has a new piston and ring and the cylinder has been polished.
When i slow down the bike by shifting down gear, knocking sounds came from the engine, this makes engine braking not smooth as usual. Should i change cylinder? Or get a slightly bigger piston in the market or ...

Thanks for viewing
 
You said you have a new piston and ring for the bike? Where did this piston come from and was it not the right size?
 
Maybe you should check the clearance between the piston and the cylinder wall. you will need to know the manufacturer's specifications. If you don't know how to do this properly, have somebody who does know how do it for you. I'll bet that there probably isn't more than about two thousandths clearance required for such a small bore.
 
is this a mechanical knock or a ping/spark knock?

check your chain for excess play, it can cause a slapping on the buffers/block.

maybe your bike is running on- too lean on the slow circuit. reverify your pilot jet, maybe go up one and re-verify starting with the air screw 1.5 turns out.

the symptoms are kinda vauge so i'm reaching here...sorry. hard to diagnose a random noise over the 'puter.

best of luck sir and hope it aint serious.
 
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