Vintage CR OR WR 390's 78 79 80

PDF file made of the service bulletin but i'm no computer wiz, I don't have a clue on how to post it here but I can email it to you. my email is maxq2244@yahoo.com. Do you have a owners manual for a 79 or 80 390? looking for a copy of the tool page, as I have some Husqvarna tools that I have not been able to id yet. Looking for pic's/part numbers. Them fine parts/service bulletins/work shop manuals on disk from flebay have a lot of missing stuff in them.

1979 cr 390

Here is my winter project. Next is cables and controls, then rebuild forks and shocks.

Tuning

i have a 1978 390 and i can not get it to idel right or run right for the life of me i can get it close to a idel but it is rough. when im riding i can't open it up or it bogs down. i can give it very very little throttle only but if i find the perfect spot it screams... can some one give me any help!?!? thank you

That's one tough looking bike ! I love the twin shockers of the late 70s and early 80s. Basic yet brutal.

Don't remember offhand, but I think their was a chart or graph that showed it in the service bulletin.

I had a 80 390OR, loved that bike. It was the most versatile bike I ever owned. My good friends dad owned the Husky shop here so I was lucky to have good access to info/help. I put the big bore 420 kit in mine. If I remember right it came with instructions/bulletin on how to do it and also jetting tips. We ported mine at the same time and added some length to the headpipe-1 1/2" maybe. What a torque monster! It broadend the powerband and seemed to add half again more power, but I was also 15-16 years old! We used to ride the old Bad Rock Trials route- just a few miles out of town here. Great in the woods and all around improvement. Wish I could find that bike again, last time I saw it around 86-87 leaning against a duplex carport with no barrel and short chrome shocks-nice.

looks like an ACERBIS vented NOST fender.

Uh oh! It's the "details police" again

While staying down in Los Barriles with my uncle I found this '79 WR390 in his garage. He's keeping it at his place for a friend. The original tank is back in the states in the owners garage. We've been looking into what it'll take to get her running. Not an OEM restoration or anything, just to have fun.







On the list thus far is:
- Throttle cable.
- Throttle lever and assembly.
- Fork seals.
- Sprocket cover.
- Carb.


The sprocket covers over at husqvarna-parts.com say they're for 81-88, anyone know where I can find the right one?

Thanks.

I have just bought what I thought was a 1979 OR390 off ebay, but I am now not sure what I have got. I did ask the guy for engine and frame numbers and I am pretty sure they agree with what I would expect for that bike (according to the HuskyClub website), but I now think the engine is not correct because it has a square ignition cover, and have been told that the square cover was last used in 1976.

I appreciate that the forks are set up very low in the yokes, but are these the right forks on this bike? I am also curious about the rear shocks. This bike was imported from the US a number of years ago, so do any of you guys recognise these shocks and can you tell me anything about them (ie are they rebuildable)? I have measured them on the bike and they are about 16.5 inches in length. Is that right or a bit short?

Thanks for any help you can give.

View attachment 3595

View attachment 3596

View attachment 3597

Murph- the shocks are Works Performance (Chatsworth. CA) Magna's. Not sure why the square cover is on an engine series that's (confirmed) '79 but to answer your question HVA went to round style in '78.

Thank you for your reply, it is useful info. I have been told that these shocks should be rebuildable, so hopefully I can use them because I like the look of them on the bike.

The engine number begins 2067 and is on a small plate riveted to the right case in the correct place. It may have been changed at some time, who knows. But I am not bothered about it, just curious really. I am looking forward to restoring it back to a raceable state, I don't intend to do it completely original or anything like that, so hopefully I can keep you posted on it's progress.

Thanks again