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 The previous version was outdated and no longer supported.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

250-500cc Wierd Noises From Top End

Bench Racer 117

Bench Racer 117

Husqvarna
A Class
Oops. I spelled WEIRD wrong and can't fix it. Oh well. Anyways.

I have an 07 WR250. I recently had to ride a ton of slab to make it back to camp before running out of fuel. This meant a lot of consistent higher RPMs . It wasn't ideal and took a toll on the motor. Well after a while the motor started to have a clicking/grinding sound following what the piston was doing in unison. So we stopped and cooled them down for a little bit and then continued. It started doing it again after a few minutes but I babied it back to camp.
The next day we rode a loop with no strange noises.
What could the this have been? Do I need to replace the top end?

Suggestions please.
 
Sounds like it was running lean and almost seized. It was good to stop and let it cool down. I heard people putting the choke on to richen the mixture during long high speed road runs.

You could pull the exhaust pipe and look at the piston through the exhaust manifold. If it did seize, then you should see scoring on the piston.
 
Might be a good idea to pull the jug and check to make sure, check wrist pin clips. Clicking and grinding sounds are not something that I would ignore the next day...
 
It may have just been "ping" from low octane as it heated up and leaned out. But, pull the pipe off and look at the exhaust side of the piston.
 
I had to take the pipe off anyways since it's all jacked up now too. The piston and rings look great. No scoring or signs of any issues. If I were to pull the jug would it be to inspect if the clips are not in place? I'm thinking its the lean ping at this point. But should there be a reason to change the piston with the info I've given?
Also, my friends 300 was doing the same thing. That makes me think its a lean issue and we both could have seized.
 
I'll bite...

I get confused, but recently read up on this...

35:1 because there is less gas to air, then the 100:1


Did i even come close?
 
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