• Husqvarna Motorcycles Made In Sweden - About 1988 and older

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 The previous version was outdated and no longer supported.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

Crankshaft right-side dimensions

Misha

Misha

Husqvarna
I have a 1982 WR250 with an SEM ignition that needs replacement.

I checked the Power Dynamo website and they have a DC unit with lighting capability so it seems to satisfy my needs. However, there is this whole issue of 90 mm plate vs. 130 mm and small vs medium vs large shaft?

I am not sure which shaft my 250 has. It measures about 14 to 14.2 mm diameter at the beginning of the taper. The flywheel securing nut is a 12 mm thread. Is this a so-called "small shaft"?

I am pretty sure I have the 130 mm adapter mounting.
 
The small stub end likely shows up on CR models as there is a small stub end ignition side on a 84 250CR crank shaft I got on eBay a couple years ago. I believe the 82 WRs have the medium end while my 79 390WR engine has the large end.

You need to measure your mounting plate accurately as I checked the mounting of the SEM from my 82 250WR into the 390WR engine I am rebuilding and found the SEM has a smaller mounting plate than the Motoplat has that came with the 390 engine . The Motoplat plate diameter is 110.109mm. The SEM plate is smaller so I would have to say it would likely be 90mm diameter based on the adapter I am designing to put an SEM into it
 
jimspac said:
The small stub end likely shows up on CR models as there is a small stub end ignition side on a 84 250CR crank shaft I got on eBay a couple years ago. I believe the 82 WRs have the medium end while my 79 390WR engine has the large end
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The Power Dynamo website lists the 81's onwards as being small shaft but they do not show a medium shaft available so perhaps they are mistaken?
 
I may be mistaken but not likely. I do not have any 81 on CR cranks so I can not speak to them other than the 84 250CR crank I have. If I rob the rod, pin, and bearing from it I can sell you the small ignition stub end if will help you
 
On the old Huskyclub website, Craig listed the large shaft as .575 inches (14.6mm), small shaft as .540 inches (13.7mm). He also lists medium shaft on 82-87 models. He does not list the dimensions for medium shaft, but yours being 14 to 14.2 mm is right between small and large, seems to indicate you have a medium shaft. http://www.huskyclub.com/ign.htm

Hope this helps.
 
SteveJ said:
On the old Huskyclub website, Craig listed the large shaft as .575 inches (14.6mm), small shaft as .540 inches (13.7mm). He also lists medium shaft on 82-87 models. He does not list the dimensions for medium shaft, but yours being 14 to 14.2 mm is right between small and large, seems to indicate you have a medium shaft. http://www.huskyclub.com/ign.htm

Hope this helps.
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I think the guy on that Husky Club site is listing those shaft end diameters incorrectly. For example, the large shaft end is normally listed as 20 mm in other sources. When someone lists parts, originally manufactured in metric, in inches, I simply turn off. Especially when he uses the word approximately. Thanks for your post but in the end, I'm waiting on an answer back from the ignition supplier on this. The critical question is: will 70's flywheels fit 80's WR bikes?
 
Misha said:
I think the guy on that Husky Club site is listing those shaft end diameters incorrectly. For example, the large shaft end is normally listed as 20 mm in other sources. When someone lists parts, originally manufactured in metric, in inches, I simply turn off. Especially when he uses the word approximately. Thanks for your post but in the end, I'm waiting on an answer back from the ignition supplier on this. The critical question is: will 70's flywheels fit 80's WR bikes?
Click to expand...
no, the primary kick bikes use their own stuff
 
I'm confused. From the late '70's to mid '80's from the bikes I restored the 125'(85/86), the '77/'86 250's and 125/250/ 430/500 had the same shafts. The only different one was the 390 with the heavy flywheel. I put a 430 ignition in a 125.
 
Bigbill said:
I'm confused. From the late '70's to mid '80's from the bikes I restored the 125'(85/86), the 250's and 430's had the same shafts. The only different one was the 390 with the heavy flywheel. I put a 430 ignition in a 125.
Click to expand...

Finally a confirmation of what I suspected. The Husky Club website seems to leave this issue incomplete. I wonder if I should let them know, but I've seen their incomplete charts with missing shaft reference diameters for years now so perhaps it is intentional.

At any rate, thanks for your confirmation of the fact that most Huskys have the same flywheel mounting shaft feature - it is actually a 3.814 degree taper angle. They are virtually all the same with very few exceptions through the 70s and 80s period. The Power Dynamo website confirmed that the 70's shaft matches the 80's as well. This has been an elusive bit of information to find but I'm there now at last.
 
Thanks for updating the info. Husky Club is no longer in operation and the website has not been updated for quite some time now.
 
Too bad craig hung in there with the husqvarna 's a longtime. I gave up before he did. Chasing parts back then just got to me. It wasn't like it is now.

Too bad craig is missing out on the husqvarna talk here.
 
Bigbill said:
Too bad craig hung in there with the husqvarna 's a longtime. I gave up before he did. Chasing parts back then just got to me. It wasn't like it is now.

Too bad craig is missing out on the husqvarna talk here.
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I'm out of touch on this. I did not realize the Husky Club was no longer active as the website still seems to show. Too bad as it seems they had a lot of information via news letters etc.

What do you mean about parts being easier to find now? :) To me it seems trickier to get OEM parts to keep the old Husky in original condition. I am just getting one of my '82s running with a new ignition after 8 years in the shed. Every time I try to source a part now I get the feeling it may or may not fit. It is more an more difficult to find people in the know but this site sure seems to help.

Here's what I still need:

front fender
clutch and brake cables
basket and plates
17 inch rear tires
seat cover and foam

Looking forward to riding the old girl in the next vintage class enduro in May.
 
I think what Bill meant, was that it is easier to find parts now a days due to the internet. I wish we had that years ago.

Most parts you list above are easily available if you do a google search. The first three items are listed on the HVA-Factory site, and maybe the last item too.
They are also available from Phillip at Husqvarna-Parts and several others.
17" tyres are about. My favourite is the Trelleborg 644 Army Special (now Mitas). These are also road legal here in the UK.
 
Bigbill said:
I'm confused. From the late '70's to mid '80's from the bikes I restored the 125'(85/86), the 250's and 430's had the same shafts. The only different one was the 390 with the heavy flywheel. I put a 430 ignition in a 125.
Click to expand...
Got my replacement ignition from Power Dynamo, installed it and it started on the eighth kick. After gas was running through the carb and lines, and the engine was warm, it now starts at first kick. Finally success after 12 years in the shed. Thanks to all that contributed. With the expected exception of a few home made coil and regulator mounting brackets, the installation was pain free. I would highly recommend Power Dynamo (MZ) replacement ignitions. Order direct online and shipping from Germany is only $40 (2-3 days). A real good deal.
 
We are waiting for the new seat foams to arrive....

I am told - 'soon'

All the rest is in stock except the tyres...

Andy
 
grouty said:
I think what Bill meant, was that it is easier to find parts now a days due to the internet. I wish we had that years ago.

Most parts you list above are easily available if you do a google search. The first three items are listed on the HVA-Factory site, and maybe the last item too.
They are also available from Phillip at Husqvarna-Parts and several others.
17" tyres are about. My favourite is the Trelleborg 644 Army Special (now Mitas). These are also road legal here in the UK.
Click to expand...


I scoured the country for husqvarna parts. I had a dealer in Oregon for pistons and gaskets he imported the gaskets from the maker. I think he's no longer with us it's been over decades now. He kept my bikes running.

Now there were older husky dealers who went out of business I came across a few a while back selling there inventory. Back then it wasn't worth it but now with the online sources for selling plus the vintage racing and renewed interests in restoring its worth it.
 
grouty said:
I think what Bill meant, was that it is easier to find parts now a days due to the internet. I wish we had that years ago.

Most parts you list above are easily available if you do a google search. The first three items are listed on the HVA-Factory site, and maybe the last item too.
They are also available from Phillip at Husqvarna-Parts and several others.
17" tyres are about. My favourite is the Trelleborg 644 Army Special (now Mitas). These are also road legal here in the UK.
Click to expand...



I bought many trellborg 17" rim ten master tires years ago. Never wore them out. They were long lasting tires. The best I've ever used. I'm not sure what mitas offers today.
With tires being $100 and higher I prefer the best long lasting quality tire I can get.
We used a Cheng Shin tire on the cr125 it didn't last a few rides. Mid season the 125 wore it out. I could see the knobs wear on just a few outings. The IRC Tires held up good. I don't ride like you guys do.
 
There are three different Husky shaft sizes, the Femsa/390 20mm, the "Medium" 15mm and the "small" 13mm. The list on the Husky Club was not complete, but to say that they are all the same is highly inaccurate. The taper is the same, but the diameter of that taper is NOT the same. Various models used either the 20mm or 13mm up to '81, then in '82 everything went to the 15mm "medium" shaft.
 
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