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 The previous version was outdated and no longer supported.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

430 AUTO, 4 gears and others PIZZA ( Bitza ?)

Michel Dufayard

Michel Dufayard

Husqvarna
Pro Class
Discussing with Paul Rooney several months ago, he told me that
one of the best auto was a 4 gears auto motor with a top end 430 AC ( + 430 crankshaft).
Has somebody tried that mixture or another mixture ?
 
No I havn't mixed and matched. One would have to use the drive stub from the 420 which seems to me to be the same as the 500 auto but havn't verified this. I would sleeve down the 420 to approach the less oversquare bore stroke ratio. The three speed has more one way clutches per gear what is best for a AA rider or one that the racing entities pay money for vs what is best for my purposes probably are different. I will say I like the design of the 420 best. It has ball bearings where the earlier have needle and thrust bearings and the way "drive" is engaged on the shaft has been improved from earlier. I like the bronze shoes with grooves better than the later one with the kits of new drum, shoes, and springs that I have gone through a number of.

Fran
 
Michael, have you experimented yourself? Years ago back in the windows 95, film camera, scanner on scsi card I had the engine out of my 83 xc500 and put the 420 auto engine in there. What happened was upon sticking in the swingarm pivot is that the engine wouldn't rotate to level the front was high and something hit in the rear. Strangely I saw what seemed like that combination for sale on ebay quite a few years ago. Are you able to say why you post pictures of what appear to be the last variant of the dual shock, the one that doesn't hurt my ankles when the foot gets forced back, the engine fits but as noted above mine didn't.

At a later date I put a 420 engine in the 1988 te510 frame and it seemed just a cut to the engine case kind of in the area of the squashed tube near the footpeg for the origional 420 frame and re shaped patch would make it fit as opposed to tampering with the frame.

What about that mono shock one pictured above. The 500 has a wider clutch cover and still puts the oil feed to the first gear assembly which got re done to accomidate the water pump. What is the mod there. As I have stated before the 500 is believed by one guy I know to be the worst lemon they ever made.

Maybe I have mixed and matched now that you post pictures of a three speed one. Origionally I had an auto engine in this creation. Maybe with a filed crank and third gear disabled the auto would do better than what is in it now. At least for the events it is designed for with the appropriate tire. The auto kickstarter is in a worse spot and hitting the swingarm end pocket had to be dealt with. They took this one at the northeast husky gathering a few years ago and had the nerve to mix kawasaki in the name of the picture nothing is kawasiki, there is some green and a pro circuit silencer and pipe re configured that was intended to go on a kawasaki.
 

Attachments

  • yard_francis_husqasaki_03.jpg
    yard_francis_husqasaki_03.jpg
    205.5 KB · Views: 24
Dave, which model of auto lower end do you have. I believe they imported 360.390,420,500, and water cooled 430 to USA. I believe the whole thing was kind of what we call pork barrel politics where the Sweedish government funded the first models which were 250's and might have got more 250 ones as time went by. You would need a stroke in your lower end to match that of the top end's design as well as the thru bolts being in the right place. I don't know the stroke for the 360 and 390 off hand but the others are 72,84,74 in mm.
 
I could be wrong but Michael's 250 is probably based on the Swedish Army 250, this is a picture of mine which I will put into a later chassis at some point. Great little bike and pretty quick too.

IMG_1714.JPG
 
fran...k. said:
Dave, which model of auto lower end do you have. I believe they imported 360.390,420,500, and water cooled 430 to USA. I believe the whole thing was kind of what we call pork barrel politics where the Sweedish government funded the first models which were 250's and might have got more 250 ones as time went by. You would need a stroke in your lower end to match that of the top end's design as well as the thru bolts being in the right place. I don't know the stroke for the 360 and 390 off hand but the others are 72,84,74 in mm.
Click to expand...


Fran..k, It is from a 500 AE air cooled, an '85 maybe, I can check the case #. No cylinder or head, just a piston and rod hanging out.
I have had the case apart, not sure what killed it but auto part looks OK. Having had an 85 500 AE, a smaller bore and stroke might be interesting to build.
Thanks,
Dave
 
The 1980 and 1981 250cc cylinders have the same stud spacing as 1979-1982 390 and 420 automatics
 
everfree said:
Fran..k, It is from a 500 AE air cooled, an '85 maybe, I can check the case #. No cylinder or head, just a piston and rod hanging out.
I have had the case apart, not sure what killed it but auto part looks OK. Having had an 85 500 AE, a smaller bore and stroke might be interesting to build.
Thanks,
Dave
Click to expand...

It would be intresting, that crank cavity surely is the largest so filling in that probably would be in order. I suspect that going to a 420 crank and top end would work but that is the same bore. There is a 250 air cooled with that reed cage which would/might fit on then getting a proper crank. The auto cranks from 420 on are narrower than their standard shift counterparts the difference between widths is in the wheels. I can see some earlier standard bikes have the same design crank wheels as the autos though. It isn't uncommon a bike "dies" because someone intends on getting the cylinder bored bigger and never follows through.
 
Now that would be something:busted:**************************************** ..... pity the recluse clutches have gone half way there now.
 
fran...k. said:
It would be intresting, that crank cavity surely is the largest so filling in that probably would be in order. I suspect that going to a 420 crank and top end would work but that is the same bore. There is a 250 air cooled with that reed cage which would/might fit on then getting a proper crank. The auto cranks from 420 on are narrower than their standard shift counterparts the difference between widths is in the wheels. I can see some earlier standard bikes have the same design crank wheels as the autos though. It isn't uncommon a bike "dies" because someone intends on getting the cylinder bored bigger and never follows through.
Click to expand...


fran...k,
Thanks for the info and ideas.
I have an 82 250. Could a new crank be machined? I'll have to think about this some more. Interesting.

I hope that's the reason it has no cylinder. If only we had a crystal ball, the stories these old bikes could tell us !
Dave
 
You must log in or register to reply here.
Back
Top