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 The previous version was outdated and no longer supported.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

This can't be good

L

Larsa

Husqvarna
A Class
is what I said when draining the oil out of my 430 and looking at the plug (first pic)

Took the clutch cover off and looked at the primary gear (second pic). weep..must have been foreign object to have this kind of wear on this part... crush-damage..

..and then to top the evening off you realize that there are only 6 fibreplates in the clutch, (hence two metal on top of each other)...and look at the casing (third pic), what the heck is that ?

And the funny thing is that when I bought this bike I got receits from several shops where it had been in for service each year, including swapping the complete clutch

:cry:

Lars
 

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Probably the little needle bearing the kick start gear rides on broke into a bunch of pieces and that is what has got ground through the engine. What you show on the magnet surely is only the last time the oil was changed as much more is missing from the gears than on the magnet. The bike engines in the group which use that engine case design do tend to put chips on the magnet more than I like by now (20 years old or so?). Hey my modern 125 didn't even come with a magnet it is make or buy a plug with a magnet.

The two metal plates (Clutch) on top of each other wouldn't spin against each other as they are keyed to the same thing. Sure this indicates a bone headed mechanic but not much beyond that.

You probably are looking at a parts bike with this plus the rear insert issue. The primary drive parts should be surplus in a bunch of folks bone piles. [edit the drive part of the clutch gear is generally good though the little kick starter gear on the back makes the ones for my 430/500 bikes not surplus] The frame where the engine vibrated around I suspect isn't too healthy as well. You haven't even seen how many bad gears you have in the transmission yet, on mine there is a third (I think) gear that can tend to shed some material from the tooth faces as well. I have one, only one case with similar bubbling under the black coating like that.

I am just guessing it is a 250 from the size of the primary gear on the crank. If you put your location and the size of the hole in the insert for the swing arm bolt maybe someone has a surplus lower end.

Fran
 
Thanks Frank for the reply, its a 430, however the case might have been modifed for the 430 crank and hence could be a 250 as well.
..went out to look at the engine case number and the cases are 430 WR.

Yep, will be interesting to see the gearbox quality when it is dismatled. Thankfully the cylinder/crank seems to be in great shape from what I have inspected so far. Original bore.

This was so very disappointing. Good news is that I picked up the frame etc from powedercoating today and it looks great. Also picked up all steel parts from plating, also looks great.

Anyone able to help a sad guy out with a case and gears ?
Have many parts to trade with, unfortunately very little husky (many yamaha RD350, moped parts vintage beetle parts, pinball parts (!).

Any tips on the cases, or should I switch use of them to boat ancors due to the strange spots on them. Still haven't figured what that is.

:(
Lars
 
I spent a while in the tech_data_81-88 pdf file you can find on here in the vintage section. It really only has good data from 1984 to 1988. The 400 and 430 seem to have 33/72 primary reduction. I see the snap ring clutch in your pictures which to me eliminates 87-88. Which also would mean 400 was what was sold, Just basically bore difference though. The earlier air cooled 430/500 had larger engine gear. I also noticed 84 250 is 32/77 and 85 and on 250 is 30/79. Of course they reserve the right to change anything at any time. The pictures of the cases wouldn't give a clue as the the displacement as far as I can tell.

If you ask for cases and primary gears for a 430 without specifying what gear ratio and swingarm hole diameter there are parts which fit that description but not probably what you seek. I have my suspitions that set up with the more drastic primary reduction and the five spring smaller diameter clutch is over stressed for a 430 though I havn't ever rode with that combination.
 
Engine no. is 2087 352.
Bore is 86 mm so top end is 430cc. I assume for the cases to be anything but 430 the bottom end volume must be machined? Without knowing I am just assuming that there would be some sort of webs to reduce the bottom end cavity for the same casting to be used for 250 and 430 cc engines, as would be the case for similar engines?

Oh well, I shall break the halves apart to see what the inside looks like, as soon as I have found a puller that will work on the main drive wheel.

Thanks!
Lars
 
Gnerally the 400, 430, and 500 have the same cases. One can wander around in the parts sheets and gain some insight. It appears to me the ones that have the larger hole in the swingarm pivot have a bit more reinforcing in that area once you get them apart and examine side by side. The 250 has a reducing web in the crank cavity. I looked up that number you posted.



1982

250 MP

AM-0001

2087


Fran
 
Hey Frank, missed out on the last number it should be 2087 3521 (missed the 1 in the end in the post)
The website I looked at told me it was a 430 WR case, what do you get out of it?
frame is a CN, but the bike was road equipped and someone probably changed engines to a wr for a higher gearing.
 
I am guessing you are in europe. road equipped. Here is one place to look up numbers. the last digits I would think are just to seperate each individual engine in the group of the first four digits. That cn frame comes out to a 125cc around 1982 on below site.
http://www.husqvarna-parts.com/page/page/3895714.htm

I am pretty sure an 81-82 430 would have a 39 tooth engine sprocket and be higher ratio than what you seem to picture.
 
the CN frame numbers was equal on the 125:s and 430:s 1981 models as far as I figure, starting at 1001 and beyond? but nevertheless the frame is not an issue, I know it is an 430 CR. It was sold as a pure mx in 1981, but was later on manually equipped with lights etc, and engine was swapped to a 2087 wr engine. Again, not the expert on these bikes.
I shall investigate on the engine interior, worst comes to worst and I am unable to find replacement parts, I will make new parts. Decided to balance the crank/piston assy nevertheless, always a good idea it seems. Thanks! Lars
 
CN frame is an 81 or 82 CR of any size. USUALLY... CN-0xxxx is 81, CN-1xxxx is 82. xxxx is just the serial number off the production line.
2087-xxxx is the wide ratio trans 430, used in XC and WR bikes. But fran is right that the primary ratio is not an original 430 ratio. That should be 39/70 as stated. Somebody built that engine from a few different pieces! If they had done it right, that would be fine. There are many combos you can swap around. Unfortunately...
 
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