Vintage Dirt Bike Q & A

Hi folks,
does anyone have one of these or know where I could get one or any info as to this item or other reed valves?

cheers people

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1976 Yamaha TY80 X 2, 1977 Yamaha TY250 X 2, 1976 & 1978 Honda CR125 Elsinores, 2013 Harley Davidson 48 Special.
Range Rover Vouge Black Edition, a Little Smart four two and a shed load of other shit!!

That looks like a G.E.M. reed valve to me, but I could be wrong. They pop up on eBay from time to time.

The setup below is way better, and probably way more $$.

http://richstaylordporting.com/intake.html

Ray

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'74 CR125M (175cc), '75 MR175, '82 RM250Z, '08 YZ250F, '14 Zero FX electric, '14 Zero MX electric, '18 Alta MXR electric

Is this one?

_________________
1976 Yamaha TY80 X 2, 1977 Yamaha TY250 X 2, 1976 & 1978 Honda CR125 Elsinores, 2013 Harley Davidson 48 Special.
Range Rover Vouge Black Edition, a Little Smart four two and a shed load of other shit!!

That looks like a DH reed kit.

If you're installing from scratch, I'm sure you're aware there's a lot of work involved to correctly install this kit (intake passage mods, adding piston-skirt windows, boost port cut, etc.). If you're going to go to all that trouble anyway I'd suggest using a modern reed assembly instead, but that's just my opinion.

On page 2 of the .pdf link below is a DH installation diagram for the Hodaka 125, which gives a general idea of what's required.

http://www.strictlyhodaka.com/v/vspfiles/assets/RV.pdf

Ray

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'74 CR125M (175cc), '75 MR175, '82 RM250Z, '08 YZ250F, '14 Zero FX electric, '14 Zero MX electric, '18 Alta MXR electric

Top oneis a GEM (that pic is of my old one actually)
the bottom is a DH.

Don't forget you WILL need to put some holes in the piston for any reed to work.
I have the diagram for a 123 somewhere if you need I will look for it.

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1994 AHRMA National Champion Sportsman 125 Intermediate.
1996 AHRMA National Champion Classic 125 Expert.