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 The previous version was outdated and no longer supported.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

Spark plug Experts?

fasteer

fasteer

Husqvarna
AA Class
My 'other' bike is a Scorpa TYS175F; a bit of an oddball bike.
It has a TTR125 engine stroked to 142-cc.
It's a cold-blooded little bugger, can take a lot of kicks to fire up when cold and then likes to stall until it's warmed up.
This morning I pulled the plug; it was black with oily carbon.
Cleaned it up and put it back in.
This plug is a NGK CR7HSA which may have been installed by previous owner.
The manual specs an NGK CR4HSA, which I think is a hotter plug.
Would it help the cold starting if I can get a CR4HSA?
P1010318-M.jpg
 
I would definitely put the hotter plug back in it, just doing that MAY NOT help the hard starting, unless the hard starting is being caused by the fouling. Does it have an enrichment circuit? If so, I'd check that circuit for being plugged up as well as the pilot/idle circuit, or go up a size on the pilot/idle jet.


Carbon fouling occurs when the spark plug firing end does not reach the self-cleaning temperature of approximately 450°C (842°F). Carbon deposits will begin to burn off from the insulator nose when the self-cleaning temperature is reached. When the heat range is too cold for the engine speed, the firing end temperature will stay below 450°C and carbon deposits will accumulate on the insulator nose. This is called carbon fouling. When enough carbon accumulates, the spark will travel the path of least resistance over the insulator nose to the metal shell instead of jumping across the gap. This usually results in a misfire and further fouling.
http://www.ngksparkplugs.com/tech_support/spark_plugs/p2.asp
 
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