• 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 The previous version was outdated and no longer supported.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

Tinken

Tinken

Husqvarna
Pro Class
NGK Iridium IX Spark plugs Husqvarna 449-511

For many years NGK spark plugs has been the number one choice for offroad enthusiasts. The company uses many composites from standard copper core to platinum core. The Iridium IX spark plug is made with precious metal which is in a white and silver color. With the natural elements of IRIDIUM, NGK was able to create the best spark plugs on the market.

The results are:
- Spark plugs that require less voltage to spark.
- Burns fuel more efficiently.
- Sparks at leaner air/fuel mixtures.
- Delivers higher horsepower and better gas mileage.

IRIDIUM IX Spark plug can be installed on any engine using Standard or platinum plugs.
A-New 0.6mm Iridium center electrode reduces voltage requirements and extends ignition system life.B-New metal shell plating has excellent anti-corrosion qualities.

NGK CR9EIX (3521) is the Iridium spark plug

NGK CR9EKB is the standard plug for 449/511
 
I have one in my 449. Iridium, it works great!
I heard that Lithium Crystals are even better :rolleyes: good luck finding that!
 
I've always run NGK in all my cars and vehicles. We always spec-ed them in our Mitsubishi EVOs and never had an issue. thanx for the part #!
 
Ha ha......a Trekie. Love it. BTW "The Next Generation" Best show ever......
I've used Iridium plugs in my 610 (NGK and Denso) with good results.
Tinken, are you using an Iridium plug in your 511 ? If so, did it make a difference and
is it a bitch to change on these bikes ?
 
W
fasteer said:
Don't use Lithium Crystals, they will cause your piston to melt.
Dilithium Crystals are the proper additive to achieve warp speed.
Click to expand...

WalMart was out of Dilithium crystals so I converted mine to a Flux Capacitor. If you want to do yours the part number is 4QDMV.

:)
 
They are the real deal. The electrode basically never wears out. If you look at one that has been in service for a long time, the electrode looks great, but the underside of the groundstrap is eroded.

I'd be "shocked" if you can feel the difference on a stock/lightly modified motor, unless the plug you are replacing is already used up.

Whaat is the standard issue, CR9E or CR9EK?
 
MotoMarc36 said:
They are the real deal. The electrode basically never wears out. If you look at one that has been in service for a long time, the electrode looks great, but the underside of the groundstrap is eroded.

I'd be "shocked" if you can feel the difference on a stock/lightly modified motor, unless the plug you are replacing is already used up.

Whaat is the standard issue, CR9E or CR9EK?
Click to expand...
I don't know Marc, 610's always seem to suffer from a midrange flat spot/stumble that you just can't tune with jetting, adding a iridium plug makes the flat spot almost imperceptable.
 
Radar said:
W


WalMart was out of Dilithium crystals so I converted mine to a Flux Capacitor. If you want to do yours the part number is 4QDMV.

:)
Click to expand...

I hear that there are folks in the desert who make their own cystals... never heard of them being used in a motor though.:p
 
rajobigguy said:
I don't know Marc, 610's always seem to suffer from a midrange flat spot/stumble that you just can't tune with jetting, adding a iridium plug makes the flat spot almost imperceptable.
Click to expand...

Really ? Cool, that's fabulous that there is such an easy, cheap fix! There are some odd combinations out there that favor one plug over another.
 
NGK Iridium IX Spark plug was placed into my SMR 449 (mine is for race only) and first thing I noticed was how quick it started from cold!
I've just installed one into my inverter generator as well(cheap china one) and same deal, starts heaps easier but also runs lots better!
 
They are also helpful in 2t engines. Because they get to their self cleaning temp much faster than the heavier elctrode type plugs so they don't foul out as easy. My 250 used to foul plugs pretty regularly and the fine wire plugs made it a none issue anymore.
 
rajobigguy said:
They are also helpful in 2t engines. Because they get to their self cleaning temp much faster than the heavier elctrode type plugs so they don't foul out as easy. My 250 used to foul plugs pretty regularly and the fine wire plugs made it a none issue anymore.
Click to expand...

VERY good point also. Because of the mentioned temp, and the lower firing voltage required they are less likely to find an easier ground path (FOUL!:doh:!).
 
rajobigguy said:
They are also helpful in 2t engines. Because they get to their self cleaning temp much faster than the heavier elctrode type plugs so they don't foul out as easy. My 250 used to foul plugs pretty regularly and the fine wire plugs made it a none issue anymore.
Click to expand...
They are Not recommended to be used in 2T. There is a reason why & I will find it. I can tell you its not good.
 
MotoMarc36 said:
They are the real deal. The electrode basically never wears out. If you look at one that has been in service for a long time, the electrode looks great, but the underside of the groundstrap is eroded.

I'd be "shocked" if you can feel the difference on a stock/lightly modified motor, unless the plug you are replacing is already used up.

Whaat is the standard issue, CR9E or CR9EK?
Click to expand...

CR9EKB is standard for 449/511

I replaced a new plug and noticed a difference starting cold and smoother running across the powerband. No noticeable power difference.
 
Croc said:
They are Not recommended to be used in 2T. There is a reason why & I will find it. I can tell you its not good.
Click to expand...
I have heard that rumor also but I cant find anything to back it up. I know that I never had a issue and that they made my bikes easier to start, run cleaner and never fouled.
 
rajobigguy said:
I have heard that rumor also but I cant find anything to back it up. I know that I never had a issue and that they made my bikes easier to start, run cleaner and never fouled.
Click to expand...

I can't find the reason why, but part of it is they run to hot for 2t
 
Croc said:
I can't find the reason why, but part of it is they run to hot for 2t
Click to expand...
The actual heat measurement of a spark plug is determined by the amount of thermal conductivity a spark plug can release to the out side of the cylinder. As long as you match up the correct heat ranges, the iridium should work really well in two stroke engines, especially for firing through oil mixtures.
ColdvsHotPlug.jpg

http://www.sixity.com/catalog/produ...k-plug-trailblazer-2-stroke-platinum-iridium/
 
You must log in or register to reply here.
Back
Top