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 The previous version was outdated and no longer supported.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

1974 CR 400 Rebuild

tbh37620

Husqvarna
A Class
Hey guys. New to the forum but have always been a fan of the old Huskies!

Bought it for $150. Engine is frozen and whoever owned and raced it back in the day rode this thing hard and didn't care too much about maintenance.

20150703_115218_zpsv3zus3br.jpg


Thats how she looked as of Friday when I brought her home. Needs a lot of work but it will be worth it Im sure.

Heres the first hurdle in the tear down. The previous rigging masters welded what I would assume is an incorrect Motoplat ignition on.
20150706_085505_zpsquualusj.jpg


Am I correct in assuming this rotor is pressed on? I see threading but most Ive ever dealt with are pressed on.

I will post more pictures as I slowly piece this thing together. Cheers!
 
The flywheel fits to a taper on the end of the crank stub. There is also a key way in there to line up the timing. The shaft has a left hand thread with a nut to lock the flywheel. If someone has not realised this and used excessive force to try and remove the nut, the thread will strip or the end of the shaft breaks.
I guess something like this may have happened. So they just welded it ! You can just see what is left of the larger female thread in the flywheel that accepts a puller to pull it off the taper.
I am not sure what ignition the 74's would have had, but I guess it wouldn't have been the Mini 6.

Good luck with the build. It will be a blast to ride.
 
start looking for a crank stub and an ignition . then torch that mini6 off of there. you cant hurt it anymore then it already is. Grouty is correct about thet taper.
 
Yeah I am going to have it removed and will need a crank stub for sure. So what is the recommended ignition to replace it with? PVL, HPI? I will be racing it in AHMRA and at AMA vintage days so not sure if that dictates what CDI ignition I can run.
 
This era is one of my favorites. The 74 400WR was Huskys first big bore with a six speed transmission. Very applicable for desert racing.

It looks like the rear of the frame was modified to lay the shocks down. All 74 400's had the MK frame where the shocks were almost straight up and down. It was 75 when they went to the GP frame with the lay down shocks. If you are looking to go original you may have some work to do in that area. I'm sure someone on Café Husky has an old frame that you could get the correct sub-frame off of.
 
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