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 The previous version was outdated and no longer supported.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

449/511 Breather hose mod

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Damn you and your evans coolants! Glycol is the devil incarnate on tarmac tracks, would be nice to run it but alas :(
 
I know ethylene glycol is illegal on your track, hell you can't even run it on the motocross tracks here. But is propylene glycol illegal too?
 
I think instead of running a oil cooler on the left side of your engine, you should install an overflow tank and think about a second Spal fan.
 
Letter of the law (so to speak) says water only. I run motul mocool which is glycol free as my SMR serves as a street/track bike and I'm too lazy to continually change out coolant.

24.3.1.7 The only liquid coolant permitted is water.
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Tinken said:
I think instead of running a oil cooler on the left side of your engine, you should install an overflow tank and think about a second Spal fan.
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I have a motion pro coolant recovery thing which I'm looking at sticking behind the headlight shroud now I've removed the headlight for the track. Haven't tested if it'll even fit yet. A 2nd fan would be nice but so far even in over 35C air temps the bike's never overheated, although it spits some coolant if left idling for too long. I need to check the fan connections as I never see it spin up *shrug*
 
I took my te out on the tarmac today and even with the high speeds I was going up the highway, the fan was running hard
 
Where are the relay's and connectors for the temp sensor and fans? I'll have a look and make sure they're still plugged in!

Time to break out the WSM...
 
Not on mine, was relocated to fit those annoying braces! Everything's plugged in, fan has continuity. I need one of those infrared thermo guns hehe

At what temp does the fan kick in?
 
As inaccurate as they are I might stick one of the FX temp stickers on the radiator, if I can find a visible spot... The one I have on the cylinder doesn't seem to go near 95C unless I'm stuck in stop/start traffic.

EDIT: Not the most ideal place but it was the only one visible, temp sticker now on the top of the right radiator next to the intake snorkel.
 
Rearwheelin said:
Interesting that when I had 2000cc in I couldn't get oil to come out the breather, seems like the oil shuffles around between compartments with different fill amounts and oil temps and viscosity might have huge roll. I think that the breather needs to be free'er flowing to help with these issues is why I'm going half inch on the breather box hoses.
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I had 0.5 inch hoses on my breathers as well.
I'm not too sure about oil shuffling, but the torque limiter actually uses centrifugal force to spin oil off so that just gasses come out the breather vent (in theory). But if you lay the bike over and oil does get past the torque limiter, then it creates a siphon effect and continuously pumps oil out.
 
Tinken said:
Nope. That's what Ty said to me and I didn't believe him so I hooked a quart of oil up to the breather and sure enough, it would not flow back to the case. Something to do with the gasses flowing through the torque limiter, it isn't just a straight hole. To combat this problem, Ty and I designed a whole new breather hole for the Kymco engine. Production run of new breathers will be done next week. Should have them up for sale on the website near the end of next week.
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Are you going to give your loyal followers a heads up just before their out? Ya know.....kinda like insider trading......without the jail time.:D
Does anyone have torque specs available for the chassis? Im in process of putting some of my bike back together but can not find the specs for torque. I ordered a shop manual on CD from my dealer but havnt received it yet.
 
On the bottle, will the inlet and outlet material be thick enough to cut some threads if desired? Looks like most want a slip or press fit. To mock it up and make sure I've got it set up right I'd probably run houses and clamps, but would like the option to put some sexy fittings on after a while.
 
Tinken said:
I had 0.5 inch hoses on my breathers as well.
I'm not too sure about oil shuffling, but the torque limiter actually uses centrifugal force to spin oil off so that just gasses come out the breather vent (in theory). But if you lay the bike over and oil does get past the torque limiter, then it creates a siphon effect and continuously pumps oil out.
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This is probably what I seen going on when oil was pouring out the breather with 1600cc
 
Tinken said:
I took my te out on the tarmac today and even with the high speeds I was going up the highway, the fan was running hard
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Tinken my fan in 100 degree weather on the highway will not come on , if it's on as I enter the highway it will quickly turn off.. Around town stop light to stop light it will stay on but turn of on the long city blocks. I never had issues with coolant seepage untill I leaned my idle out and started tuning out back pressure when I close throttle.. You might be running lean , I know you are if you can hit 115 with 15-43 :) I can lean my toP end out quite a bit still.
 
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