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Workshop => Engine and Bottom End => Topic started by: johnbeton on April 21, 2014, 03:57:07 PM

Title: Mugen ported cylinder ?
Post by: johnbeton on April 21, 2014, 03:57:07 PM

Hello Guys,

I'm new to this board, I'm from Belgium by the way...
I have a question about a cylinder, I have it for a couple of years and bought it in a partslot, I don't even know which one exactly, because I bought lots of stuff over the years from differtent people.  Any way, I never took a close look at this particular cylinder, but while I was searching through my parts this weekend, I took this cylinder of the box and noticed an engraving in it, when I looked closer, I noticed it is the Mugen logo :confused:.

I never, ever have seen this before, I also searched the net, and cannot find any other cylinder like this.  It's definitly a stock cylinder, but it has been ported.  Does any one know if Mugen actually did portwork on stock cylinders ?

I have a couple of pictures, but I will take some of the inside next weekend:

(http://forums.trx250r.org/vbulletin_imports/791_1706_2017-04-18_3180.jpg)(http://forums.trx250r.org/vbulletin_imports/791_1705_2017-04-18_43.jpg)

Title: Mugen ported cylinder ?
Post by: fearlessfred on April 21, 2014, 06:26:48 PM

welcome to the forum,I don't have an answer for you but I find this very interesting .Thanks for posting

Title: Mugen ported cylinder ?
Post by: udontknowme on April 21, 2014, 10:08:02 PM

ive seen mugen cr125 stuff but never a 250

Title: Mugen ported cylinder ?
Post by: 250 on April 22, 2014, 09:37:24 AM

Mugen and Honda have always gone hand and hand. I unfortunately don't know anything abou it, but it's a cool cylinder. Throw a piston in, and see what it's like.