• Husqvarna Motorcycles Made In Sweden - About 1988 and older

  • Hi everyone,

    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.

    When he passed, I worked with his kids to gather the necessary credentials to keep this site running. Since then (and for however long they worked with Coffee), Woodschick and Dirtdame have been maintaining the site and covering the costs. Without their hard work and financial support, CafeHusky would have been lost.

    Over the past couple of weeks, I’ve been working to migrate the site to a free cloud compute instance so that Woodschick and Dirtdame no longer have to fund it. At the same time, I’ve updated the site to a current version of XenForo (the discussion software it runs on). The previous version was outdated and no longer supported.

    Unfortunately, the new software version doesn’t support importing the old site’s styles, so for now, you’ll see the XenForo default style. This may change over time.

    Coffee didn’t document the work he did on the site, so I’ve been digging through the old setup to understand how everything was running. There may still be things I’ve missed. One known issue is that email functionality is not yet working on the new site, but I hope to resolve this over time.

    Thanks for your patience and support!

Compression ratio

J

Joe Bleau

Husqvarna
C Class
Hello,

What is the compression in PSI if i have à compression ratio of 15.0:1?
This is for WR 240 LC 1985 with a double ring piston and a new sleeve.

Thanks
 
my high mileage 88 250 is listed at 15-1....this year the compression was 210-215 psi after about 4 kicks...i would say you should see 200
 
Then i have a big problem. My compression is 150-160 psi. The engine cost me 600$ (new piston and new sleeve) and i don't have the full compression... What do you think is the problem?
 
are you sure its 15 to 1? i thought only the 87-88 long stroke 250 had the higher compression....the earlier 250s were 12 to 1, and if is the case, you compression is spot on....maybe someone else can offer some insight...the 85-86 had bigger bore, shorter stroke..much like the early 80s 250s...with a fresh piston in my 84 it sat about 155psi..
 
have you broken it in to seat the ring?
about 15 minutes should do the trick to get an accurate number
 
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