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 The previous version was outdated and no longer supported.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

OEM Fan

Anytime you get away with fixing something with zipties is a win in my boat.

These SPAL fans are OEM on a heap of bikes and they all seem to suffer the same fate. I sometime wonder if they were meant to be mounted on a dirt bike with he hub design being so delicate.
 
What rad caps are you guys running that are getting hot? I got a TC510 that I just put a 1.6 cap on. The OEM was a 1.1 which is very low pressure. I can't say if this thing boils over yet (just got it) but it is something to look at. I got an OEM fan mount just in case I want to put a fan on. Hoping the cap does the trick.
 
hmmmm.....


IMG_5141.JPG

my fan frame broke also- at about 1000 miles of reasonably aggressive 1st gear single track on my '14 TE310r. I removed the fan and the large metal bracket, but kinda balked at the OEM replacement cost ($70-$80 IIRC). So I went looking on eBay for a suitable replacement (I want at least 150CFM airflow; stock is 225 maybe?). I found a couple of candidates ($12-$28) that I'm pretty sure I could easily make work....

...but in the meantime I have been running without the fan- and without any cooling issues at all. Granted, the ambient air temps have been mild (45°- 75°F, uh, mmm, about ~10°-25°C) but I've been doing seriously slow, high power stuff.

But there's another part of this story: I had lost (! I don't know how) my stock 1.4 Bar radiator cap. I got a 1.8 Bar cap replacement from BMP (thanks Bill) thinking I'd eventually find the old one (nope). I was kinda nervous with that kind of pressure in my cooling system (1.4= 20psi, 1.8 = 26psi approx) but now I think my stock cap may have had a defect (and obviously I had some kind of issue sealing it). I used to boil over upon rare occasion (I had lost about 3-5oz of fluid in total over the months; seemingly not that much, except the total system only holds about 32oz.) but since using the new cap, I haven't had a problem with coolant loss- and it seemed that the fan came on less too... but I'm not totally sure about that. I do know that the new cap is easier to secure because it has two ears on it that make it easy for my big hands to grab- as opposed to the stock cap's tiny ridges all around the outside.

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As far as the replacement fan goes- I'm not in any big hurry now. I've started a project to install a LED, next to the FI LED, to indicate when the fan comes on (and later, this wiring will allow me to insert a switch to also manually turn the fan on or off). I also had been thinking about a super small overflow tank for the radiator (2-3oz) but I will definitely hold off until I see a bigger need.

I have been running stock coolant and replaced lost fluid with water. One more observation: surprisingly, the 20amp fan fuse blew- I assume when the fan stalled when the blades hit the side of the frame. It only draws about 2amps when running, normally. It also feels like the bearings are shot in the fan. The day my fan broke, my cousin's WR450 was blowing out steam like a locomotive on the same trails, hills... and i didn't lose a drop even with the bad fan.
 
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