• Husqvarna Motorcycles Made In Sweden - About 1988 and older

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    As you all know, Coffee (Dean) passed away a couple of years ago. I am Dean's ex-wife's husband and happen to have spent my career in tech. Over the years, I occasionally helped Dean with various tech issues.

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1982 WR250 Boost ports

A

Action Jonny

Husqvarna
AA Class
I have a 1982 250XC and I'm planning to try a WR cylinder to see if it helps with bottom end power as I ride a lot of technical trails. I noticed my XC cylinder has the two boost ports while the WR cylinder does without. I would really appreciate if anyone could tell me if it would be worth putting in the boost ports to the WR cylinder. It doesn't look like it would be a difficult job but I'm not sure what effect this'll have on the power delivery.
 
I have an 82 WR 250. Boost ports are for top end I think. Better low end would be from lowering the exhaust port. One option would be to resleeve your cylinder with a WR sleeve. WR cylinders are very hard to find.
 
Not so much boost ports on 82 xc and CR. these are for mid top
the 82 wr exhaust port is like 3mm lower than on the xc cr. this is why and where the low snap on the 82 wr comes from
one year only cylinder and getting tougher to find every day
 
Joe Chod said:
Not so much boost ports on 82 xc and CR. these are for mid top
the 82 wr exhaust port is like 3mm lower than on the xc cr. this is why and where the low snap on the 82 wr comes from
one year only cylinder and getting tougher to find every day
Click to expand...
After much searching I managed to find a WR cylinder, I can definitely notice the difference. I've also fitted a slightly thinner base gasket.
 
Thank you for following up. Almost no one does that.
For others, I have talked to LA Sleeve about this. They have specs for the 82WR porting, and say they can make the sleeve.
Base gaskets are available from Cometic in many thicknesses.
 
Picklito said:
Thank you for following up. Almost no one does that.
For others, I have talked to LA Sleeve about this. They have specs for the 82WR porting, and say they can make the sleeve.
Base gaskets are available from Cometic in many thicknesses.
Click to expand...
No problem! Just for the record I used 1mm gasket material and made my own.
 
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