• 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 The previous version was outdated and no longer supported.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 Spark plug issues

jmetteer said:
I had a similar issue on my 125, I changed every electrical item on the bike, changed pre-mix and the crank seals.

It ended up being low compression, changed the ring and stopped having issues. I think leaning out the jetting would have acomplished the same thing. I was fixated on electrical and was sure it couldn't be jetting.

This is what my plugs looked like...
2012-10-02_19-05-13_627-L.jpg


Later,
Click to expand...
More than a few times I have seen guys lean out a bike that probably had low compression. The bike would run pretty good for a ride or two and then blow up. I started doing a compression check as soon as the top end was broken in which gave me the highest possible reading. Then at a later date if I suspected a compression loss I could do another compression check with the same gage and compare. The thing about the WR250-300 is that they can have good compression but wear the intake side of the piston with a deep enough groove to cause the piston to break. After learning this I take the reed block out once a year and have a look. My 2009 WR250 has the original piston and rings and as of last month 205 psi cranking compression so they are pretty tough and dependable but everything has it's breaking point.
 
lankydoug said:
More than a few times I have seen guys lean out a bike that probably had low compression. The bike would run pretty good for a ride or two and then blow up.
Click to expand...

Yep, that is why I didn't. I figured the jetting was fine for almost 100 hours at that point so I wasn't going to mess with it.

I did the same thing, tested the compression after break in and have been monitoring it. With the lectron I doubt I would notice the a difference as the compression drops.

My issues were all back in the mikuni days, I don't miss that carb one bit.

Later,
 
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