Maintenance & Technical > KX500 Original

Interesting read

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Motorrad:
Short but interesting what gorr was saying.  Especially about devoul's bike
http://www.dirtrider.net/forums3/showthread.php?t=31667


"In 1990 Ted Devol had a KX500 with dual manifolds exiting off the sides of the cylinder head. He bolted expansion chambers with closed ends, adapted from radio controlled airplanes. It was the coolest lookin thing"

sandblaster:
Hey Motorrad.
That was an interesting read.
Thanks!

martinfan30:
Be interesting to see if they ever built that head!

kaw rider:
qoute from eric gorr from that same thread.  qoute: If I had some spare time and a slab of billet to widdle upon, I'd build a head for the KX500 that looks like this.
Removable and can be shimmed for piston clearance. Shaped with a 2-4 degrees divergent squish.

Roostdaddy, he need to read this thread to see what he also was recommending, maybe that 15-18 degree squish was for pump gas.

RoostDaddy:
I've read that before and he's got me baffled.   :?
The only reason I could think of for the 18* is to try and take away compression and put you in a certain cc. range in the chamber.  Or maybe it is for pump gas, wish we could get him to participate along with Rich and Wes.  Things would be pretty crazy with the stuff they have tried or saw.

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