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 The previous version was outdated and no longer supported.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

449 convert 511

Super5onic88

Super5onic88

Husqvarna
AA Class
Hi guys,
Just thought I'd ask the brains trust before I throw down some cash.
Is it perfectly fine to machine out the 449 cylinder to suit a new 511 piston?
Or should I pay the big bucks and purchase a brand new 511 cylinder?

Do these bikes have a special cylinder coating?
 
Super5onic88 said:
Hi guys,
Just thought I'd ask the brains trust before I throw down some cash.
Is it perfectly fine to machine out the 449 cylinder to suit a new 511 piston?
Or should I pay the big bucks and purchase a brand new 511 cylinder?

Do these bikes have a special cylinder coating?
Click to expand...

Sorry, I don't have a 511 (although my son did... but he moved away) but IIRC, there is only about a 20cc difference. IOW, 449cc vs 470cc (?). And like you suspect, I have no doubt there is some kind of super duper coating/ electro-plating (ie, Nikasil) that'd make punching it out expensive- because of re-coating (if at all possible).

do some research- you may not be getting what you expect.

I wish I had more solid info for you.

(edit: I just looked it up: a 511 displaces 477.5cc's by having a bore of 101mm vs 98mm for the 449. The strokes are the same at 59.6mm)
 
Yep, that's what I'm thinking.
I know the increase in bore isn't that big but that is the only option out there for these bike as far as I'm aware.
No Athena kits :(
 
And unless found on some ones shelf you know about already the 3mm larger big bore kits are likely still on back order.
 
gillies said:
Why?
Click to expand...

I'm guessing it's because he races supermoto- where every bit of hp counts on the asphalt sections.

I wonder if the TC header or throttle body buys you anything.

Like you (guessing) I thought my son's 511 (with a JD, FMF pipe... I estimate maybe 52hp) was actually TOO powerful for my taste- my 310 is about all I can handle (WAG: 40hp, maybe 42 via my butt dyno; thanks to ZTR reprogramming my ECU)

The motor on the 449/511's is a good design and really responds well to tuning. I bet 60hp is easily attainable. I also believe BMW gave up on 'em too early.
 
60 ponies is easily had with the 511 with PCV, pipe, etc. If was i to grenade mine that's what I'd do.
 
What do you consider overdue? I'm just curious. I'm sure you could find some used cylinders in good shape.
 
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