• 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 The previous version was outdated and no longer supported.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 race head short review

^^^ Yep. Your 250 already has higher compression and might not benefit as much as a 300 would though - not sure on that one? I race a same era WR and I've left mine stock. I can pass some 450's in the open if I am brave, so I haven't messed with it...
 
Johnnymannen;134496 said:
Sandgroper!

What jetting are you running, and at which temp? Elevation?

Johnny
Click to expand...

Current setup is:
Keihin Airstryker PWK 38mm
Jetted with a 45 pilot jet
170 main jet
Blue needle in the 3rd clip from top down.
________________________________
My current running conditons are:
Mix 40:1
Oil: Castrol Power RS TTS Full Synthetic.
Elevation 0-300mtrs
Temp - 15- 35 degrees C
Humidity 40 - 60%

Type of riding desert, soft sand (fast trails)


I will take the helmet camera out on my next ride so you can see how she goes :D
 
Ok, thanks for the info! There´s no desertriding here! We started our iceracing season today:applause:! Great fun with long powerslides on the ice:thumbsup:. I use 14/42 gearing on the ice, EEL needle in 3rd, 45 pilot and 182 main at about zero degrees. Humidity around 85-90%.

Johnny
 
Johnnymannen;134769 said:
Ok, thanks for the info! There´s no desertriding here! We started our iceracing season today:applause:! Great fun with long powerslides on the ice:thumbsup:. I use 14/42 gearing on the ice, EEL needle in 3rd, 45 pilot and 182 main at about zero degrees. Humidity around 85-90%.

Johnny
Click to expand...

I dont think we could find more contrast than that :) Stupid question...
Whats an EEL needle?
Have you tried a paddle tire in the snow? wonder if it would work :)
 
Sandgroper;134855 said:
I dont think we could find more contrast than that :) Stupid question...
Whats an EEL needle?
Have you tried a paddle tire in the snow? wonder if it would work :)
Click to expand...

EEL needle is one of Keihin´s own needles. I´ve been trying out different needles to learn about jetting and to see how the needles affect the caracter of the engine. This makes a very big difference so now i have the possibility to jet my bike just how i want it depending on where i ride and how i want it to be. I have a bunch of needles to mess with! No, i haven´t tried a paddle tire, because as soon as you get down to the ice you have no grip at all! Our Motocross tires with 12-15mm long screws works wonders on the ice! Wheelies out of the corners and stoppies into the corners! :applause:
BTW: Blue needle in 3rd feels rich to me. have you tried it in lower position? I also think a 40 pilot would work fine. I use a 45 now and we have about zero and below at 1000ft! 1,5 turns out.
Johnny
 
fire1998;134630 said:
What's the # to RD Designs? Any idea on the cost for this mod?
Click to expand...

I think its around $70.

Best way to reach Ron is via email: rblack66@comcast.net
He's a one man shop and he will not drop what he's doing to answer the phone, so email or calling will yield similar response times and he prefers emails. BTW, he does superb work and is a super nice guy to boot.

I'm dropping off my 300 head today or tomorrow for the treatment. And since I cant even get a squish measurement with .125" solder I'm hoping for a nice gain, especially since I am going to ask for a substantial compression bump. I'm hoping this will wake up the soft bottom end.
 
PC.;134901 said:
I think its around $70.

Best way to reach Ron is via email: rblack66@comcast.net
He's a one man shop and he will not drop what he's doing to answer the phone, so email or calling will yield similar response times and he prefers emails. BTW, he does superb work and is a super nice guy to boot.

I'm dropping off my 300 head today or tomorrow for the treatment. And since I cant even get a squish measurement with .125" solder I'm hoping for a nice gain, especially since I am going to ask for a substantial compression bump. I'm hoping this will wake up the soft bottom end.
Click to expand...

PC
Cool, a local guy. Once you get yours 'just right' then I will take mine in. I am happy to let you be the beta tester.
 
My race cylinder head is now on it´s way to Sweden! It will be intresting to try it out when it arrives! All of you guys who´s using it: Does anyone having problems with pinging? What fuel are you running? We have 99 octane in the pumps at best here in Sweden.
 
On mine, no pinging on 94 oct. I have 165psi.
From all testing i have made with 2 strokes, 200 psi is the limit for pump gas. Over that i use VP C16.
 
hrc630;134914 said:
On mine, no pinging on 94 oct. I have 165psi.
From all testing i have made with 2 strokes, 200 psi is the limit for pump gas. Over that i use VP C16.
Click to expand...

:thumbsup:! Thanks, sounds good! I check my ignition too. Is it easy to adjust? Anticlockwise?
 
oregonsage;134904 said:
PC
Cool, a local guy. Once you get yours 'just right' then I will take mine in. I am happy to let you be the beta tester.
Click to expand...

No beta testing required. He's done hundreds, if not thousands of them.
He's not reinventing the wheel, just fixing the mass-production tolerances...


After this I'm going to look into the digital ignition. Anyone priced it out yet?
 
PC.;134917 said:
No beta testing required. He's done hundreds, if not thousands of them.
He's not reinventing the wheel, just fixing the mass-production tolerances...


After this I'm going to look into the digital ignition. Anyone priced it out yet?
Click to expand...

Do you talk about the Ducati ignition ???
If yes, its too expensive... for me.
$346 stator
$262 box
$174 wiring...

I think for $780 you can have better performance gain... My stock timing is advance 4 degres and the response is perfect. I dont think the stock ignition is a "bottle neck" in performance on the WR300...
 
How much do they mill off the Head? Would the 250 benefit from such a mod? I have two friends with the 300 and I have the 250.

Mike
 
PC.;134917 said:
No beta testing required. He's done hundreds, if not thousands of them.
He's not reinventing the wheel, just fixing the mass-production tolerances...


After this I'm going to look into the digital ignition. Anyone priced it out yet?
Click to expand...

If he has done thousands then he ought to list Husqvarna as an option on his website :-) I assumed he was also bumping the compression a bit in addition to cleaning up the squish band and may not know what the sweet spot is on our 300s.
 
Sandgroper;134855 said:
Have you tried a paddle tire in the snow? wonder if it would work :)
Click to expand...

If you were in all powder snow maybe but if the snow gets hard, the tire will be ruined quickly ...
 
Johnnymannen;134874 said:
EEL needle is one of Keihin´s own needles. I´ve been trying out different needles to learn about jetting and to see how the needles affect the caracter of the engine. This makes a very big difference so now i have the possibility to jet my bike just how i want it depending on where i ride and how i want it to be. I have a bunch of needles to mess with! No, i haven´t tried a paddle tire, because as soon as you get down to the ice you have no grip at all! Our Motocross tires with 12-15mm long screws works wonders on the ice! Wheelies out of the corners and stoppies into the corners! :applause:
BTW: Blue needle in 3rd feels rich to me. have you tried it in lower position? I also think a 40 pilot would work fine. I use a 45 now and we have about zero and below at 1000ft! 1,5 turns out.
Johnny
Click to expand...

15mm crikey that would rip ya leg open like a polar bear if it got a hold of ya :eek:
Being a newbie to 2 strokes I dont know how to adjust the needle:busted: I was happy with myself after changing the jet! :D
Hey if you get a chance post some pics... Im sure this is something not many of us get to see ;)
 
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