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 The previous version was outdated and no longer supported.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

Iridium IX Spark plugs 449-511

ive used iridium plugs in my two strokes for years,as a matter of fact nealy everyone who races over here that i know uses them. just make sure the heat range is correct.
 
I have the iridium plug, not noticeable difference vs the stocker. Maybe it helps but who knows really.
But i had the cover off so why not upgrade? :)
 
Think of them as a higher quality spark plug. They give you a consistently stronger spark over a long period of time. It's like adding a standard plug in every time you ride. More hp, no, but smoother idle and easier starts, yes.
 
Have used the NGK Iridium IX for years in all my 2 strokes.
Never ever fouled a plug, they keep working for a very very very long time.
Actually never had a problem whatsoever with them, Can recommend to anyone.
 
Love NGK products!!
In over 30 years working with all sorts of mechanical things, I have only ever had 1 dead plug out of a box.
Can't say the same for any other brand I've dealt with.
 
Okay so I am changing my factory plug of my te449 out to an Iridium plug ( I seen a CR9EIX on the shelf in a part store and mad an impulse buy). I noticed that the plug that came out of it (CR9EKB) is a dual prong plug and the CR9EIX is a single prong. Does this have any effect? Why is the iridium a single prong?
 
I would think the twin earth standard plug has two prongs to extend the life of the plug.

Electricity is lazy, it will travel the path of least resistance.
When one electrode wears a little, the spark will shift to the other closer electrode until it too wears.
The spark will shift back and forth until the plug is worn out & replaced. (They don't fire both at the same time)
The Iridium plugs have long life electrodes, so a single set should outlast a conventional plug with twin electrodes.

That's how I see it anyhow.
 
Okay so I changed the plug out to the CR9EIX. The first thing I noticed was that the plug never seems to tighten? The plug screws in to the point where it feels like the gasket has bottomed out ( and should get another 1/4 turn). Unfortunately the plug seems to keep turning after this point and never snugs up.

After farting around with threading the plug in I tried starting the bike. It seems to run okay but almost sound like a tractor. Kind of a strange pounding/knocking noise. Throttle response was a little funny to. I swapped the plug back out to the factory one and it ran normal again. Also the factory plugs just feels much better when tightening it.

I tried this experiment once more and got the same results. I am a little leery to try threading the iridium plug back in as I do not want to mess up any threads.
 
coleman1495 said:
Okay so I changed the plug out to the CR9EIX. The first thing I noticed was that the plug never seems to tighten? The plug screws in to the point where it feels like the gasket has bottomed out ( and should get another 1/4 turn). Unfortunately the plug seems to keep turning after this point and never snugs up.

After farting around with threading the plug in I tried starting the bike. It seems to run okay but almost sound like a tractor. Kind of a strange pounding/knocking noise. Throttle response was a little funny to. I swapped the plug back out to the factory one and it ran normal again. Also the factory plugs just feels much better when tightening it.

I tried this experiment once more and got the same results. I am a little leery to try threading the iridium plug back in as I do not want to mess up any threads.
Click to expand...


Doesn't sound like it was all the way home then.... :confused:

Looks like you have the right numbers.... :thinking:

TE plug.PNG
 
coleman1495 said:
Okay so I changed the plug out to the CR9EIX. The first thing I noticed was that the plug never seems to tighten? The plug screws in to the point where it feels like the gasket has bottomed out ( and should get another 1/4 turn). Unfortunately the plug seems to keep turning after this point and never snugs up.

After farting around with threading the plug in I tried starting the bike. It seems to run okay but almost sound like a tractor. Kind of a strange pounding/knocking noise. Throttle response was a little funny to. I swapped the plug back out to the factory one and it ran normal again. Also the factory plugs just feels much better when tightening it.

I tried this experiment once more and got the same results. I am a little leery to try threading the iridium plug back in as I do not want to mess up any threads.
Click to expand...
Isn't the part of the iridium plug that your socket fits onto slightly thinner (top to bottom) than the factory one? I think I read in another thread that some guys were having problems getting their sockets all the way into and past the gasket in the valve cover. You may be running out of socket before the new plug is tight. See if you can borrow a thinner, or spark plug specific, socket. My harbor freight color coded deep well sockets fit just fine. I'm running the iridium plug.
 
Cosmokenney said:
Isn't the part of the iridium plug that your socket fits onto slightly thinner (top to bottom) than the factory one? I think I read in another thread that some guys were having problems getting their sockets all the way into and past the gasket in the valve cover. You may be running out of socket before the new plug is tight. See if you can borrow a thinner, or spark plug specific, socket. My harbor freight color coded deep well sockets fit just fine. I'm running the iridium plug.
Click to expand...


Good catch, I've had that same problem before.
 
Okay slightly silly question but could I simply install the spark plug with the valve cover off? I have to remove it to put the Zip-Ty Oil Recirculation system on anyways.
 
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