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 The previous version was outdated and no longer supported.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

Needle valve size for a 250CR?

NicoV

NicoV

Husqvarna
AA Class
I just bought an 85 250CR the other day, and it seems to be having some trouble keeping the correct fuel level in the carb (stock TM38). Idle rpm is all over the place, anywhere from 0 to about 4000 rpm, have to give it a bit of throttle every now and then to keep it going. My first thought was a leak somewhere between the carb and the cylinder so I inspected everything on the inlet side and it all looks fine. No cracks in the carb rubber, good seal between the rubber and reed holder, and same between the reed and the cage. Even though it all looked fine I added some liquid gasket to make sure there are no leaks. The problem remains though..

When the engine is running, the carb is spitting fuel all over the place through the evac hoses. When not running (vibrating) it all works fine. I lowered the float level a bit but to no avail, it spills just as much.

So next thing on the list is to replace the needle valve and seat. But I can't find anywhere what size it's supposed to be. The parts manual just says "needle valve" and it's not listed in the carb specs either.
Will a 1.5 or 1.8 do or does it need to be larger?

I couldn't get the holding screw out so I don't know what's in there now but I suspect it may be too large, causing it to overfill whenever it opens.


Other theories are welcome too, I seriously doubt it's supposed to spit like that though so fixing that would probably be a good start :)
 
try reposting this in the vintage/left kicker section and there will be some help for you...this in wrong section
 
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