Unadilla 2018 Vintage rewind

Yes, as the 82 XC had a CR cylinder and I imagine the same held true for the 1983 250XC. I am sure the 1983 250WR had the same cylinder as the 1982 because Dirt Bike did not care for the 83 250CR cylinder used on the 1984 250WR. They wished it was like the 83 as they did not like the loss of the strong low and mid range when their comparison group hit the woods.In that test group was a KTM, KDX 250,IT250 and XR250

The cylinder swaps husky played with - is and amazing puzzle in early to mid 80s. 83 wr was not an 82wr different porting it was changed. Just as the 84wr was not the 83 250 CR The 84wr was a revised to match the early wrs with a much lower WR exhaust height and then added the behind cylinder transfer ports and the eyelet side by side export ports. It was a one year cylinder , but it was based on the earlier tech bulletin for better even powerband that Husky released for that all complained about on all the 83 wrs and Crs Yes all this happened, been tracking it But mag tests all did not like it. So of all things the 82wr is a much sought after cylinder for its powerband.

And Yes this has been debated on cafe before. And yes I also believe that husky had some mid year revisons on porting for 250s to even more confuse all - or we just keep finding owners modifying their own porting and we keep finding these.

Yeah, then one of the bike I bought to restore had the older late 70’s 250 cylinder on 81-82 bottom end with an adapter plate. I asked guy and he said it went back to someone from Michigan. Heck if I know if it or how it ran?

Sure could use a magician to unlock some mid range. Maybe I'll get lucky at Mid Ohio.

The 250s received only slightly more attention than the 125/175 models in the 80's. Husqvarna focus was on the 500 class. The 250 really became a desirable engine after it became long stroke and power valved. Before that, with the oversquare engine, the best you can do is play with porting more, intake flow, longer and fatter headpipe on expansion chamber(shaped exhaust flow). After that, you will get some results but not what you would have with the variable export port you get with a power valve

One thing on the build for Franks bike ! That pipe combined with that silencer just has a real great strong
sound ! Picked up silencer in package of husky parts and trade. Of all things we had a bike and rider next to us from Oregon. He had a LED custom pipe and Silencer on his 250 Husky, that silencer looks almost the same as on Frank s bike. Must be a LED. Dallas , not city but the Husky rider was riding his very fast and got a hole shot too. I thought I had a long drive. Did i get a picture no ! But you can find a pic on LED s facebook page of a Husky 250 pipe

My 84 250WR is an early 84 that still has the replaced 30.5° rake and what I was told is an 83 250CR cylinder. Dirt Bike had verified that themselves but their test bike had the 28.5° rake. As their test was published in the 1st quarter of the year, their test bike was one of the first 'true' 84 models. I have heard the mid season update brought the power characteristics back closer to the desired WR powerband but to my knowledge did not update the already sold bikes. The riders that rode ISDE qualifers would have loved the bike the way it was initially released. The riders that rode the tight eastern enduros would prefer the true WR powerband