390 OR on the way

[Bigbill]

I'm picking up a 390 or.

 

[kanur]

Sweet, a 390 OR was my first good dirt bike.

 

[Bigbill]

The engine has compression I was told. I can't wait to get it here. The 78 250or I had was a awesome bike. The 390cr was a flier. Now the 390or should be awesome too.

 

[Crashaholic]

I got a new 390 the first year they came out in 77. It was a good bike just remember wishing that it had more power.

 

[ptkatoomer]

I got a new 390 the first year they came out in 77. It was a good bike just remember wishing that it had more power.

Back in the day I was able to get the cylinder and head off of one of Goat Brekkers bikes and put it on my OR. That was a sweet setup!

 

[Puckerbush]

My son had a 79 390 OR and I have a 79 390 CR. His was sold recently but I still have mine. I always thought his had much more power than mine for some reason.

 

[Bigbill]

I sold one of my 390cr's to a local kid he was beating newer 250's climbing hills.

The OR tranny has 1st - 3rd wr ratio, 4th -6th cr ratio gears.

With my 250OR it kept the rpms up in 4th -6th without over revving it or winding up the WR tranny to keep the rpms up.

 

[justintendo]

wheres this bike at? any pics?

 

[jimspac]

I got my 78 390ACC in 1981. I thought it had no lack of usable power but then I was training for enduro on it. My only wishes were for a shift lever and clutch lever. Only reasons we parted company in 1984. Now I am building what I really wanted back then... the 1978 390WR with the same suspension the ACC had. 9.5 inches front and rear

 

[Bigbill]

I'm trying to build,,,

'80 250cr
81 390or
82 430cr
84 250wr complete
84 430wr

I have most of the parts. New rear shocks.

Next
78 250 wr
85 500cr

 

[fran...k.]

I'm trying to build,,,

'80 250cr
81 390or
82 430cr
84 250wr complete
84 430wr

I have most of the parts. New rear shocks.

Next
78 250 wr
85 500cr

On that 85 500cr I would suggest using the 87-88 chassis.

 

[Bigbill]

Thanks, Fran k. I need to start assembling now.

 

[justintendo]

On that 85 500cr I would suggest using the 87-88 chassis.

i can agree with that. i even have a frame in my stash where someone modified the frame to accept the 86 tank in order to use the next years rear suspension. i like the look of the 85-86 bikes but i like the 87-88 better, the black tank, airbox, and sidepanels are certainly easier to maintain. the rear suspension works much better as well..
its easy to swap around but the 87 started using the dual piston brembo and solid rotor, a massive upgrade over the previous brembo

 

[ray_ray]

Good to hear you are still ticking bBill...
--

After I parked my '76 CR250 Husqvarna ... I almost purchased a OR250 Husky .. Seems they had 3 low and 3 higher ratio gears on top ... Hard to remember exactly what I was thinking about way back that long ago ..

 

[Bigbill]

Still gathering parts. Going to start on one 390or first. The OR tranny has three wr gears first then three CR gears follow.

This allows the last three gears to keep the rpms up. There's no lag or bog after third gear at and rpm/speed she stays flying. It stays pulling hard.

Still here had the steroid shots on my left side of my lower spine. Was feeling better till I climbed on the big tractor to mow. No suspension I hurt on the right side now. I should of put my two belts on. I was feeling so good.

Pain or not I'm riding. I'm not giving up.

 

[84scrambler]

The pics.