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 The previous version was outdated and no longer supported.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

All 2st Throttle mod from Mikuni nr4 to nr5.

Johnnymannen

Johnnymannen

Husqvarna
AA Class
Hello guys. My son has a WR 125 2008 and he has my Mikuni TMXX from my 300 on it. We use the CHY needle in it, and it,s a bit rich in the middle, and it cuts out the sparkplug if he doesn,t clean it out every now and then. I have needle in leanest clip so i have thoughts of modify the throttle to a number 5. Does anyone know how deep the cut is on the nr 5 throttle compared to the nr4?
 
number 5 is leaner 0>1/4 throttle you can grind back using a small flap sander in a drill press, but will not effect 1/2 throttle for that you will need smaller main or fatter needle.
 
jo360 said:
number 5 is leaner 0>1/4 throttle you can grind back using a small flap sander in a drill press, but will not effect 1/2 throttle for that you will need smaller main or fatter needle.
Click to expand...
Yes, i know the jetting principles, but when he is using very light throttle in the woods it clogs up. i would prefer to use a needle that is slightly less tapered likeCFY16-62 instead of CHY that bludders at middle throttle too. The question is how much i should cut off from the throttle.

Johnny
 
ok, i thought your prob was mid throttle, i would try a number six or grind out your number four approx 1mm all round as per above you can always raise needle if you find it too lean.i have a 25 pilot in my tmx and wii be going even smaller but high temperatures here.when i get chance i am going to do some experiments with needle profiles in relation with pv and throttle opening positions.hope this helps, good luck .

john
 
Ok, so 1mm is the right amount then? I have the needle in leanest clip at almost zero degrees and it,s still too rich. I,ll try to file it a bit. Thanks!

Johnny
 
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