• 4 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
     TE = 4st Enduro & TC = 4st 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 The previous version was outdated and no longer supported.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!

Cough, pop sometimes when accelerating

oldskool63

oldskool63

Husqvarna
AA Class
Looking for some help. I have an '04 SM450 with the Mikuni TMR41. I'm getting an occasional hiccup/pop when grabbing a big chunk of throttle coming out of a turn. I can hear and feel it. I bought the bike back in the fall and it runs and starts great other than this. Idles good. Always 93 octane.

I put in a new UNI filter. Checked the valves and @ .007" exhaust. .004" @ intake.

The plug looks right on. It may be a tad on the rich side. The insulator has a nice mocha color though. I'm assuming it's all stock jetting.

My intake boot has small cracks (age?) and am wondering if that would be the best thing to change? Maybe try to lean the needle one position?:confused:

If I hammer through the gears it doesn't do it, runs great. It's when I chop or hold the throttle steady into a turn and then crack it open on the exit.
 
Well I talked to the man today, George @ Uptite. He recommended getting the valves set to specs and replace the intake boot. I also learned that this symptom is a result of a lean condition. That makes sense. I'm still learning, new to the single 4 strokers. They sure are alot of fun
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