82/83 Husqvarna cr500 test/stats

Some cr500 stats,

https://yeoldecycleshoppe.squarespace.com/roadtestlibrary/2017/2/28/1983-husqvarna-500-cr-road-test


I notice this 82/cr500 uses the side access door air box. One I seen in a pic uses the 83 style air box.

Seems there are some errors in that article. Steel gasoline tank? 530 chain? Note 17 inch rear rim as opposed to 19 today. I think a modern 250 4 stroke makes the same hp as that graph shows.

I see my 390cr was listed in a test of having 43bhp. I don't know who to believe but the rear wheel never stopped spinning on the 390.

They mention a 12T front sprocket on the four speed that gives it more bottom end. I think a six speed cr or wr tranny is the way to go. With a larger front sprocket. I think it's easy to over rev the 500. Can't wind it out like the smaller cc engines. It's all torque/ power.

Everyone says the 500 is a beast that most couldn't handle.

My cr390 didn't like smaller sprockets when I set it up. The orginal front sprocket was fine but the 390/430 have more revs and a higher top speed.

My crankshaft for my 82/83 cr250 just went out to be assembled with the new hva rod kit. The cr500 crank goes out next for its new hva rod. After using used loose cranks I purchased some that are tight like new. No rod twist or rattle. I didn't know. I can't wait to hear what these engines sound like. Now I'm on top of my game. I'm a perfectionist anyway.

The production '82.5 500CR used an '82 frame. The '82 factory bike ridden by Billy Grossi used a pre-production '83 frame. The Husky 500 is not a beast at all, much like the 430 is like the 390 just more everywhere, the 500 is similar to the 430 just more everywhere.

silver streak vibrates too much for me. I like the 83 XC or best still the 84 WR.

I prefer the 400/430 over any of the 500s.

Same here, i have a few 500s and they sit.

What year was your 390? I have a Dirt Bike test for the 78 390CR and it went to 38hp on the dyno they normally use, hp at the rear wheel. Hp at the crank means nothing after power is lost through the clutch and transmission.

that test has been mentioned here many times but it doesnt matter apparently.

Yeah, but you didnt have a 390 that the rear wheel never stopped spinning...so there's that.

my tire used to never stop spinning too but i let some air out..

Lol, you guys

Trust me the brand new 510:17 trellborg ten masters on my 390 only stopped spinning when I let up to shift.

The Trelleborg was a horrible tire. It spun on my skateboard.

I had the 82.5 and then an 83 and they were both paint mixers. Shook so bad the grips were a blur at idle and the rear fender was 2" thick.

http://www.cafehusky.com/attachments/img_20170119_2140396_rewind-jpg.75756/

Read the 390 hp. Right above the cylinder it's husky tests results. Where's my popcorn with butter please.

Do you think by balancing the crankshaft/ lower rotating assembly will take some of the vibration out of it?

Yes. Done it. Find a meticulous crank builder, have it trued, and it makes a very noticeable improvement. I've also done it to KTM's 500/540 two strokes, too, although they are not that bad to begin with.

Truing the crank is one thing, static balancing the complete rotating assembly should remove some vibration too. It's not cheap to do but the improvement should be there. My first 500cr will be balanced.

No popcorn this time. Post 3 "I see my 390cr was listed in a test of having 43bhp." The link you put in post 16 says that number was supplied by the manufacturer. "Listed in a test" in my estimation is misleading. Back then dirt bike did put bikes on a dyno like post 8 indicates.

I am fairly confident that picture is a camera not a scanner image. (post 16 link)