• 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 The previous version was outdated and no longer supported.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 Head shake and speed wobbles

Parh 474

Parh 474

Husqvarna
AA Class
I took my '06 Cr125 to the MX track Saturday and almost got spit off from a violent speed wobble. Also got head shake on the fast straight. Now, I'm old (according to my kids) and know next to nothing about modern-ish suspension. Where do I start looking to fix this?
This bike has 45mm Marzocchi dual-chamber forks with some valves from a Canadian guy and .38 springs, and an Ohlins shock with the stock soft spring.

Thanks
 
need to do all the steps or at least some. tire pressure, well balanced tires/wheels, steering bearings, suspension settings=sag and clickers, chain
 
Is the bike sprung correctly for your weight? If the forks are too soft, they will ride lower in their travel and you will get the death wobbles....
If sprung correctly, try going in on the compression. 2-3 clicks at a time. Going out on the fork rebound may also help...
 
Good god I shudder at the thought of .38 springs for ANYTHING, let alone for moto. I would have to guess that the front end is riding low in the travel, especially if you are heavier. This will aggravate headshake.

Anyway, What RT said, with special attention to the head bearings. The top nut on my triple clamp will slowly back off on my bike, did on my older-framed Huskies also. I run a sharpie mark on the nut and tripleclamp so I can tell at a glance now. Before the mark, I used to always know because I'd get a scary warning and my normally rock-steady front end would give me a tankslapper and sure enough, the nut had loosened. Run the bearing nut (under the top clamp) on the tight side, you'll have to experiment to find the right tension as locking down the top nut increases bearing pressure. You want the front end to still self-center while riding with no input, but it should feel sluggish with the front end in the air on a stand. Also don't overlook tire pressure.
 
You might also check how far your forks are up through the triples...I pushed mine up through to much and got a scary high speed tank slapper.
 
Yeah definitely check out the steering stem area for potential loosening. If the nut on top of the steering stem that's right under the top clamp gets loose, at all, you will have some issues. Especially under heavy front breakage... I use a dab of fingernail polish to spot bolt creep in that area especially.
 
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