• 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 The previous version was outdated and no longer supported.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 sheared flywheel key

Scootskipper

Scootskipper

Husqvarna
AA Class
If you haven't already, you may want to check and make sure that your flywheel nut is properly torqued. I was riding today and my bike quit abruptly. I determined that it had no spark. I put in a call to my dealer, Ridersville in Berkley Springs, WV :applause:and spoke with Harold for a bit. He talked me through a few checks and then asked me if I had wrecked the bike any time recently. I was embarrassed to have to admit that I had pitched the poor thing a couple of times but nothing huge. He asked if I had hit any trees or had any abrupt stops. It was then that the now hazy memory of a recent hare scramble where I used a tree to turn my front fender inside out started coming back to me. :doh:He had me remove my flywheel cover and have my buddy kick it over. The shaft was turning and the wheel didn't move! Also, the nut was so loose that I could back it off with my fingers. What we don't know was if this was possibly an oversight by the factory or not. Harold told me that it is rare, but sometimes a hard hit or sudden stop can shear the key. I now have a puller and two keys on the way. :thumbsup:
 
Mine was so tight that it took heat and some "Persuasion" taps from the dead blow hammer to get it loose.

Walt
 
My 94 WXC250 did that. Came out of a ditch jump and when i landed it stalled and rolled to a stop. I was like :excuseme: Checked everything and could not get it to start. Spark, gas, compression... every once in a while it would start and then idle and die. Left it on the track and walked back to my truck happy i was not 40 miles out in the mountains.
 
OMFG****************************************!!

at least im not the only one thats had this happen! thanks for sharing Skoots!
 
Follow up

I called Ridersville and learned that my puller was on back order. I had them send the keys on anyway. If something is already falling off, it's fairly intuitive that you shouldn't need a special puller to remove it. I installed a new key and because I couldn't find any torque specs in the owner's manual I decided to torque the nut to 25 ft.lbs. The bike lit up on the first kick and I was feeling pretty smug:thumbsup:ten seconds and a few blips of the throttle later it died:thumbsdown:. A quick inspection confirmed that I had stripped half of my key supply (2) I called Harold and he told me that he had never heard of this happening with a 125 and suggested that I call George Earl of Up-tite and get his opinion. I had the good fortune of being able to reach Mr. Earl right away :thumbsup: and he told me that I had a miss-fit. He explained to me how use lapping compound with the key removed and lap a perfect fit between the flywheel and the crankshaft. He also instructed me to torque the nut to 50 ft.lbs. It turns out that this was a common issue in the old days, but is rarely seen on modern bikes. In a rare instance of me actually following instructions, I performed the above mentioned procedure and once again the bike lit up on the first kick:thumbsup:I ran it for a moment and stopped and checked the torque on the nut. It was fine and I replaced the cover and went for a little ride. So far, so good...tomorrow we head for the trails. :applause:
 
That's good news David glad you got her up and running again. Good luck with the trail ride tomorrow.
 
Been riding huskys for over 20 years NEVER have had it happen, but did see it happen to a 2000-2001 wr250. The guy stalled it real hard and thats what happened. I will take my chances with my wr125.
 
Hi All, I posted this issue last year as it happened to both of my son's 07 WR125's.
It actually happened to my oldest son twice, the second time as he was leading the 200 B class at the Hixton WI OMA race. He was also third overall B at the time.
He was not happy to say the least.
I did not realize that a sudden stop could cause this, but it makes sense.
 
A sudden stop shouldn't do this. The tapers (in the flywheel and on the crank) should provide such an interference fit that it should be a struggle to get the flywheel off - even with the correct puller.

The Woodruff key is there only for alignment. It is not designed to transmit torque.

On all the multitudes of knackered 2-strokes I've had over the last 25+ years I've never seen a flywheel nut come undone on it's own. However, it may conceivably work loose if the flywheel is not a secure fit on the crank taper.

Older bike riders may remember using a little fine lapping paste to bed tapered parts together. However, this shouldn't be necessary in the modern world.

Perhaps this could turn into a warranty thing?
 
When my kid raced gokarts we didn't use flywheel keys. Offset keys
were available but it was kind of gray area with some tech. inspectors. So we used to leave them out and use lapping compound, then it was the inspectors fault for loosing the
key during tear down.
 
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