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 The previous version was outdated and no longer supported.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

Athena 300cc Kit for 2009 TE250

E

Eoin

Husqvarna
AA Class
Anyone fitted one? My TE has one fitted (83 mm bore) and now I'm looking at reassembling the engine, the deck height is nowhere near that suggested in the workshop manual. I've found the Athena instructions and no mention of deck height. Any feedback appreciated.
 
OK, so I've sent the head away because of a burned exhaust valve and a bit of marking on the face from the old gasket(s). The skim was 0.1 mm. The head guy did a chamber measurement for me after skimming, 13.4 cc. I've done multiple deck height measurements at 4 points round the piston, 0.6 mm seems the best measurement. I've also done the piston chamber measurement, the best I can get is 5.65 cc.

Add it all together and I get a 12.14:1 theoretical CR. I'm guessing that the barrel will squeeze up a bit when the head is on because all I can do is push down on it manually while measuring. A bit of googling gives a 30% comprssion on the 0.4 mm base gasket, so 0.12 compression which would make the deck height .48 mm.

That gives me 12.4:1. Reading some old posts, the original CR for the 250 was 12.9:1 and the Athena kit lowered it a little to 12.5:1, so I'm in the ball park. 0.1 mm gives .25 on the CR, so even if I've got something wrong, I'll be going from 12.5 to 12.75 CR, which is OK.
 
You might give Feracci a call, he's still selling those 250 big bore kits (I think they're really a 285cc?) and can authoritatively tell you everything you need to know about it.
 
JonXX said:
You might give Feracci a call, he's still selling those 250 big bore kits (I think they're really a 285cc?) and can authoritatively tell you everything you need to know about it.
Click to expand...

297 cc is the stated volume. I checked the CR because the deck height was not as the Husky manual, which must be to compensate for the smaller combustion chamber on the 250 head.
 
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