1987 CR 250....rare?

[bower100]

I've located a 1987 250 motocrosser and was wondering how many of these bikes were made. Were they not the last year built in Sweden ?
Seems it was Husky's first, (maybe only),offering of a variable exhaust port motor ..... an electric solenoid controlled guillotine. True?
Was it well engineered? Effective ? Reliable?

Thanks, dave

 

[justintendo]

if it does have the powervalve and its a swede (left kicker), yes, pretty rare steed! theres a few owners on here that will fill you in. you are correct in that they were the last of the swedes. i have an 88 xc250, but being an xc, it has no powervalve. it was a new style engine, long stroke/smallbore and has a great all around powerband. all the previous 250s were shorter stroke and bigger bore and were more pipey.

 

[2premo]

they are not a common bike, worldwide production/distribution was 350
the reliability of the power valve was not the solenoid but the rod breaking off
unlike the modern slow moving adjusting with RPM there was a point in the RPM it just OPENED,,, BAMM
George at UpTite will tell you of the troubles
of the 350, how many are left???
of the how many are left what is reasonably left alone
of the reasonably left alone how many have a functional "power valve" ??
oddly years ago I bought one and it pretty much just sat around, still has the original rear tire, "power valve" works
after riding my 87 XC250 the "power valve" really does make a difference
by the way have not even started it for 5 years, like I said, just sits around
but to the last part, Was it well engineered? Effective ? Reliable?
the idea was good and a common way back then
effective,,VERY
reliable,,, these were made for ONE purpose,,, COMPETITION

 

[2premo]

 

[hva-factory]

We have some parts for these including the ignition systems and some power valve parts...

Andy.

 

[auto]

I have a 87 cr250 that I am thinking of letting go.It was featured in VMX.If interested shoot me a PM
Joe

 

[everfree]

they are not a common bike, worldwide production/distribution was 350
the reliability of the power valve was not the solenoid but the rod breaking off
unlike the modern slow moving adjusting with RPM there was a point in the RPM it just OPENED,,, BAMM
George at UpTite will tell you of the troubles
of the 350, how many are left???
of the how many are left what is reasonably left alone
of the reasonably left alone how many have a functional "power valve" ??
oddly years ago I bought one and it pretty much just sat around, still has the original rear tire, "power valve" works
after riding my 87 XC250 the "power valve" really does make a difference
by the way have not even started it for 5 years, like I said, just sits around
but to the last part, Was it well engineered? Effective ? Reliable?
the idea was good and a common way back then
effective,,VERY
reliable,,, these were made for ONE purpose,,, COMPETITION

A friend bought a 87 250 WR as a parts bike.
He just pulled off the pipe and found "3-90" and "UP-TiTE" scratched onto the cylinder.
There are other UP-TiTE touches like a really neat support bracket tying the rads together and an aluminum "Y" in the cooling system with Up-Tite markings. Was this one of George Erl engines and Baja style prep improvements?

 

[justintendo]

sounds like it...would be interesting to know the port dimensions or have a peek at them, lol

 

[everfree]

sounds like it...would be interesting to know the port dimensions or have a peek at them, lol

I've sent George a note asking about it.
I'll let you know if I hear something.

 

[everfree]

... i have an 88 xc250, but being an xc, it has no powervalve. it was a new style engine, long stroke/small bore and has a great all around powerband. all the previous 250s were shorter stroke and bigger bore and were more pipey.

Was this "new style" engine new for 1988? Wondering if the 87 250 has it?

 

[justintendo]

87/88 250 is longer stroke, 86 and earlier all had the shorter stroke going back to early seventies.

 

[2premo]

Was this "new style" engine new for 1988? Wondering if the 87 250 has it?

the 87 and 88 XC are basically identical
there was no 88 CR model

 

[86 400 XC]

Looking at some old posts about the wonderful power valve motor.
I found 1 in Michigan and was easy to trace it back to the owner/racer.
#721 Ethan Goodrich from New York.
Going to freshen it up and set it up in a bike for a test..

 

[auto]

I finally sold mine.No one really cared that it was the last Swedish Husky. It was just a clean 250 Husky. I'm sure by now the power valve has failed on him. Just a poor actuation design. If you like the motor you will have to some how beef up the engagement arm to the valve. The vibration just destroys the slots on the valve.