• 2 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
     WR = 2st Enduro & CR = 2st Cross

  • 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 The previous version was outdated and no longer supported.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!

250-500cc How many hours on a WR 300 piston?

I found out compression test only test ring seal not condition of piston. I just put ome 144 kit on my 08 cr125 and had ran great for about ten hours and had about 165 psi comp still on compression test after last ride so I figure I was good till mid next season. Wrong. Took pipe off to do some work on powervalve and looked in exhaust and seen major scrapes on piston so I took top end off and found ring was stuck and major wear on piston and cylinder. Looking at piston I can see there is still not any blow by rings but what cause ring to stick is still unknown. I sent piston and cyclinder to Scott to see what he can figure out. I was running a 32-1 mix on Yamalube with a premium VPc12 mix to around 96 octane. The plug looked good light tan and jetting seemed close if not little rich, spooge still out of silencer a little and bike took couple turns to clean out good when starting laps. I always warmed up bike while changing into gear. So do not rely just on compression test to get idea what shape piston is in. I got lucky and found it before more damage was done. I only ride motocross but I am only c class rider.
 
Johnnymannen;134513 said:
HRC 630 here at the forum has done 100 hours on his 300 which is tuned to over 50bhp on the standard piston, and comp is unchanged=). And he rides it hard!
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Not bhp... WHP my friends :thumbsup:
 
Also dont forget that a big bore 2 strokes need quality mix oil and more oil than a small bore 2 strokes.
 
I use at least 3%, especially on the ice. No spooge, works perfect! There is no reason for me to go under that as it works without problems.
 
Johnnymannen;134918 said:
I use at least 3%, especially on the ice. No spooge, works perfect! There is no reason for me to go under that as it works without problems.
Click to expand...

For me, 40/1 or 2.5% with Mothul 800.
 
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