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 The previous version was outdated and no longer supported.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

Mikuni TMX 38mm carb question

H

Husky125SM

Husqvarna
hello, i have a husqvarna 125sm, that i have bought with a mikuni tmx 38mm carb on. It has killed a few plugs, and releases this real sticky oil out the powervalve overflow . I understand this is from bad jetting, and the jets were changed by the previous owner, with the main jet being 420, which is way too big as standard is around 370 i believe. I was just wondering, does anyone have experience with this carb, and could i get this carb to work on the bike, after down jetting , or is it just too big ? cheers
 
Not a lot of people have experience with the sm125 on this forum, but perhaps you might get lucky. You may want to state what year your bike is.
 
I would recommend running maxima formula k2 as your oil premix. It leaves no carbon residue in the engine and rarley fouls plugs. If you have the owners manual, it should state in there jetting specs for specific elevations and such. What year is it? Also I would start with a 400 main.
 
try the 370 which was as per a wr125 2006 and a 30 pilot - look in photos of 2t bikes there is a guy in the Uk who knows these bikes
 
HiI
I had a same problem.

does you spark plug tells you you're OK with your jetting?
or at least in the neighborhood?

the bike still runs OK (maybe not perfect but it's not sputtering or bogging)?

my bike was eating plugs and the plugs indicate that I was not to far out with the jetting.

when I changed my piston the piston looked clean with no blow by marks what so ever.

the piston ring was gone ( way out of specs)

I changed the piston and it's all fine

I still have some (not much) sticky oil in the power valve overflow but I can live with that (i would be worried if nothing came out of it)

run a compression test or just change your piston right away when it is near the changing time and than see again I would say.

Robert-Jan
 
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