• 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 The previous version was outdated and no longer supported.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 WR250 Crank Seals

E

EYY

Husqvarna
C Class
Hey guys! just picked up my first husky last night and need some info and advice on the bike. On start up, the bike smokes a lot and continues to puff more than I would consider normal for a two stroke. Do I need to split the cases to change the crank seals, or can I change them by removing the magneto and clutch side cover and gear etc.?

Also, what type of rear shock did these bikes have? and will shocks from previous/later models fit? The one on it now is a pogo stick and has chips along the shaft.. probably lost all its oil.

Cheers!
 
My 02 250 had the main seal go. Cases had to be split. I did the bottom end at the same time just because it was split. My bike has a Showa rear. Is yours a six speed?
 
Nah it's a wide ratio 5 speed, seems really good for cruising. I should probably split the cases to change all the bearings anyway so I'll start taking it apart soon. It smokes heaps when it's cold and continues to smoke even when it's been warmed up, so I just figured it must be crank seals. Will I need any special tools to split it?
 
Chef said:
My 02 250 had the main seal go. Cases had to be split. I did the bottom end at the same time just because it was split. My bike has a Showa rear. Is yours a six speed?
Click to expand...
How many hours were on the motor when you noticed the seal was smoked? Im at 50 on my 2012.
 
No idea...the factory cases had never been split up till last summer. I prob put 300 plus hours on the bike since 09. The bike just started smoking worse and worse. My buddy said put some gear oil in the tranny and you can really smell it coming out. 50 hours doesnt seem like much. I didn't do the work but I've been told you need case splitters to do it. I've got a wide ratio 5 speed in mine now ... Great for cruising. The cr250 motor is rebuilt and sitting as a spare.
 
i have similar problem with my 96 wr 250, if it was crank seals would it still have heaps of compression and still run? it was running but wouldn't hit band, would bog down and blow heaps of smoke. was trying to nurse it home and it started blowing black smoke and burning oil in the exaust. i stopped straight away. bike just recently had new cylinder, piston and rings, i think 300cc kit, when i recently bought it. is it crank seals or power valve?
 
EYY said:
Nah it's a wide ratio 5 speed, seems really good for cruising. I should probably split the cases to change all the bearings anyway so I'll start taking it apart soon. It smokes heaps when it's cold and continues to smoke even when it's been warmed up, so I just figured it must be crank seals. Will I need any special tools to split it?
Click to expand...

Only a case splitter,crank puller and flywheel puller...don't lose the woodruff key either!!

You can use other homemade techniques to split cases and pull the crank out but do yourself a favour and buy the appropriate tools, their interchangeable with any bike you'll have to split down the track except the flywheel puller as 4t and 2t's tend to be slightly different in thread diameter and pitch.
 
I doubt it is your crank seals. Also you can change them without splitting the case. The motors on these, especially the bottom end is VERY robust. Probably the type of oil you are using and the jetting is fat. I'd not be in a hurry to dive into the bottom end as I doubt there is an issue there. Could be but not the first place I would look. Does it idle erratically? Is there oil in the stator side (under the cover)?

Crank seals come out without splitting the case. Page 39 here...

http://www.halls-cycles.com/images/PDF/Husqvarna .PDFs/1998-2004/2000/00_250-360.pdf
 
Yup if the bikes not loosing gear oil or bogging down and dying then it could be oil spooged exhaust powervalve.
When seals go bad your bike may run for a few mins then wham the throttle open it dies.
 
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