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 The previous version was outdated and no longer supported.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

  • 2 Stroke Husqvarna Motorcycles Made In Austria - About 2014 & Newer
     TE = 2st Enduro & TC = 2st Cross

TE/TC 16 TE 300 porting / Cylinder

cbr929

cbr929

Husqvarna
AA Class
Did a search on the forum couldn't find anything.
Doing a top end this weekend, anyone ever do any porting or clean up on the ports/casting?
Are the surfaces coated with anything special that i wouldn't want to remove?
(I don't intend on opening / widening any openings)
Never opened it up yet so dont know what to expect if any clean up is needed.
Back in the day on my 2000 Cr250 use to rough up and make swirl marks on the intake surfaces and remove any casting and polish up exhaust ports .
Don't know if i'll encounter any of that this time around been awhile since i own a 2 banger.
Any recommendations would be Great.. thanks
 
Cleaning and matching is a great idea, I've found a smoother running engine by doing that on an older model KTM. On that model EXC the transfer ports had a big step from the crankcase ( I assumed the MX model cylinder was probably closer matched) I used the base gasket as a pattern, it matched the case perfectly, so I put it up onto the cylinder and tooled the material to match the pattern/gasket. Can't say the 300 had more power but it was quite a bit smoother from bottom to top. truth is I increased crankcase volume by removing that transfer port material and it really was a good amount, for sure blending the ports and shaping and sharpening the port webbing. So yes we agree a clean up is never a bad thing for that personal touch, but like Tim said be careful at the cylinder ports. Enjoy the ride.
 
I agree with Robert on concentrating on good clean-up porting and a good gasket matching.
Spending any time trying to change or alter any of the port timing or just generally hogging out any of the port passages may end up increasing the ports volume but at the same time it will reduce port velocity.
That would not be good on a 300 cc power plant that is already known for having such a broad range of power output and plenty of low end grunt.
 
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