• 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 The previous version was outdated and no longer supported.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 wr 300 head mods

PC.;121934 said:
I agree about the klotz not being the easiest to burn oil.
I really like it in my dune and mx bikes, but they are seeing much higher combustion temps than the Husky. I have no issues with it on any of my bikes though. My 4 stroke lawn mower doesn't like it too much though as it builds up and clogs up the exhaust :doh:

I like sharing gas between the bikes though and not having to worry about mixing different oils for different bikes, so I'll live with it.





Please do.
Is the race head from a different mold or is it the same as the stocker with different chamber specs?
Click to expand...

Finally got a chance to bolt the head on yesterday. Huge difference in the volume. Just rode it around the neighborhood so I can't really report on any changes. Engine sounds a little different and certainly seems snapper down low. Of course this could have been from the cool day and lower humidity. couldn't tell any difference on the kickstarter effort.

One big caution - if you order the head also order two new fittings for the water lines where they come into the top of the head. Mine had some kind of pipe dope on them and it nearly stripped all the threads off the fitting when I took them out. I got them back in the new head but it's temporary fix until I can get new ones.

Headed to Brushy Mountain this coming weekend, will post up when I get back
 
The race head is in the Husky powerparts catalog.
The carb is the Keihin PWK 38MM Air Straker.


Begin with the Keihin carb, 175 main jet, EEL needle in 2nd notch (from top) pilot 42 and air screw 1 1/2.
Just that will help you a lot:thumbsup:
 
Back from Brushy Mtn.

Rode everything from some hi-speed fire road to a XXX nasty single track.

First impressions, bike seemed to start easier, although that could e attributed to the cool dry air, low end seemed a lot stronger with the big hit smoothed out, it did seem like it lost a little bit of the over rev it had before and liked being short shifted.

all in all for a $100 and an hour to bolt it up I think it was a very worthwhile investment.

Carb is Keihin 38mm PWK AS 165M CEL middle slot 35 pilot running VP C-12 and Motul 800 @ 50:1 (please no more ratio lectures, Motul says 50:1 and they know what they put in their oil) Stock pipe

PS - it didn't make it any harder to kick, I can't tell any difference.
 
Thanks again Rob.

Did you do both mods at the same time or seperately to see which one made the most difference?
 
Rob578;124206 said:
Back from Brushy Mtn.

Rode everything from some hi-speed fire road to a XXX nasty single track.

First impressions, bike seemed to start easier, although that could e attributed to the cool dry air, low end seemed a lot stronger with the big hit smoothed out, it did seem like it lost a little bit of the over rev it had before and liked being short shifted.

all in all for a $100 and an hour to bolt it up I think it was a very worthwhile investment.

Carb is Keihin 38mm PWK AS 165M CEL middle slot 35 pilot running VP C-12 and Motul 800 @ 50:1 (please no more ratio lectures, Motul says 50:1 and they know what they put in their oil) Stock pipe

PS - it didn't make it any harder to kick, I can't tell any difference.
Click to expand...

I would try the settings on the carb that HRC 630 suggests! That´s quite similar to what i use, and i think it,s a great combo!

Johnny:sweden:
 
Johnnymannen;124264 said:
I would try the settings on the carb that HRC 630 suggests! That´s quite similar to what i use, and i think it,s a great combo!

Johnny:sweden:
Click to expand...

I don't recall what fuel/oil mix HRC is using, that my be the difference.

I do have an EEL I want to try.

Sand,
I did both separately, I did the carb after the second time I rode it. That has made the most difference.
 
Hi guys
Can anyone help me with purchasing an EEL, or CEL, needle, or link me to somewhere that would ship international? If any of you could do it locally and mail it to me, I'll paypal up in front and for your trouble as well.
I just cant find it anywhere around here.
 
what do you guys think, would a gas gas domed piston be a better upgrade or the husky special parts race head?
 
hrc630;121882 said:
70H seem bad for a 300cc...
Click to expand...

I agree. Something must have gone wrong.

I normally go 150-200 hrs on a top end. I do this on my kx250, 200xcw, 250sx, my fiancee's (national class racer) 250xcws, and my wr300 is up to 93 hrs now, mostly aggressive riding or racing (i use my 200 for most technical mountain riding).
 
Rob578;124290 said:
I think I have an extra CEL, I'll look tonight
Click to expand...

Thanks
Also, if anyone knows which KTM needle would be the equivalent to the above that would be great, as KTM stuff are easy for me to get. Couldn't find any conversion table or just the KTM needles specs.
 
Damn... I can get any Keihin needle for $4 from my motor guy. And I only charge $25 shipping ;)

At least we still have some perks here in the states. Cheap needles!
 
Does anyone have the part number for this head. I will buy and try if I could order one.

I need to pop the head off of my bike for a peek anyway.


Thanks!
Tony
 
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