83 250wr

Let us know what you find out today, this is interesting . Does any one know if the wr cylinder was ported differently than the cr and xc cylinder in these years ?

The stock pilot jet is a #45, main jet #450, needle position #4, air screw opening 1 1/2. If your jet change doesn't workout try the stock setting. Which is a starting point.

The WR/XC cylinders are the same I believe the cr cylinder has two extra ports intake inbetween the carb ports and side transfer ports.

this will be tough to figure out perhaps, as it will be hard to tell if you have an actual issue or are just not liking the 83 motor. my 84 lugs around fine, i wouldnt say bottom end is any weaker than a kdx, and certainly runs alot harder above that. with mild clean up porting and a good silencer, my 84 really pulls well through the mid into a nice top hit.

My '84 250wr air cooled runs awesome. But they say these have a cr cylinder with the extra intake ports. It's no power valve engine or water cooled engine. Being water cooled it's allowed to have different port timing which creates more heat which the water cools.

id lift the needle as well just to see if its on the rich or lean side.

The bike started with a 40 pilot and a 410 main, needle clip in top groove. I went to a 45 pilot and it help. Probably 50% better than it was. I raised the needle one groove and I think it hurt it a little. I'll move the needle back to top groove and I might try a 50 pilot to see what happens. At the start the plug was a chocolate brown so the jetting is close. Runs pretty strong mid to top. Hopefully I'll get to work on it tomorrow night. It's great to get this help and info on what each year had, thanks all.

Thanks for the stock setting Bigbill

If it runs good with the clip in the top groove, that is the same as the next leaner needle jet with the clip in the middle groove. Take your needle jet out and see what it is, get the next leaner and you should be set.

So do you put the clip back in the middle if he goes with the next leaner jet ? I am thinking so, just trying to make sense in all this jetting stuff. I'll probably be next. lol

yes, when going to the next leaner (or richer) needle jet go to the middle clip.

Yes, exactly. Ideally, you want the correct needle jet to allow you to use the middle groove, that way you have maximum adjustment either way.

With all the changes back and forth your making write it all down. You can then chart the changes. It might give you more direction. Messing with the needle jet sounds good. A move to a leaner one, then raise the needle.

Like I said once before the first 90% of jetting comes easy that last 10% is the tough part.

So I did a little research and I never gave it a lot of thought that carb size moves the power. I went from a 38 to a 36. Low end is the best it's been so far but not like my 78. But it is close enough that I like the bike. I just need to adjust my riding style a little. I'm going to an enduro this weekend and see how it goes. It's a lot of tight trails so it will be a good test for both me and the bike.
Thanks for all the help!

Don't forget to get some pics for us. I really like the looks of the 83 bikes too but have never rode one .

There is a pic on the 1st page of this thread. It's the day i got it. I have another tank that's getting painted now. Other than that the bike is in decent shape.

The '83 Husqvarna 250wr has a special spot in my heart it was my first real dirtbike after our '71/'72 Suzuki TS 185's that was decades ago. The '77 Suzuki 185 was my first street legal dual sport. But the Husqvarna 250wr was a monster sized bike when compared to the smaller TS 185's I could understand John Pentons theory about a small
Nimble bike for the woods. But the '83 250wr brings back lots of memories.

I put a lot of miles on the '77 Suzuki on the street looking for new places to fish.

My 2nd bike was a 73 ts185. I loved that bike. I would like to have one again but I need a 250 to haul mt fat arse around.

I has a ts 125k as my first road registered bike and I slipped the motor into an rm 125 s frame for a cool trailbike

I had a '71 Suzuki TS-250 nice bike. Street legal. My best street legal bike was my 98 Husqvarna wr250. When I heard the popcorn noise getting more intense in the pipe I knew the front wheel was coming up. It was a fun ride. I got caught out riding when a micro burst was approaching. It got dark and I was aways from home. I never went that fast on the street in my life on a dirtbike. This micro burst is heavy rain, heavy winds and hail stones. Sometimes a tornado can occur. But I really miss the '76 ts185. I was all over on that bike.

So I was thinking this could be the same reason that Andy at HVA came up with his 300 engine ?

So I rode a modern enduro yesterday. I rode the 83 wr250 to see how it ran in the woods. It was a little soft on the low end which I knew, but it ran great! I think I'm liking this bike. A little more power would be nice but it really rips on top. Right off the start was a 1 mile grass track. It really handled well and the power was good as long as I kept it in a lower gear than I normally would.I think it's a keeper. Finished 2nd in 50+A. The rest of the class was on new KTM's.