The Hodaka Club Forum

I finally aquires a250 ED head to modify for 250SL use I just had to cut the corner of and trim some fins. Now it has a head with a centered combustion chamber much less prone to detonation . I haven't has a chance to ride it yet it toooo hot here .

Rich

Compared to what I remember is required to adapt a Suzuki TS250 head this looks like a path of lesser resistance.

I suppose the engineers meant well when they gave the SL an offset spark plug and combustion chamber. I guess they were hoping to keep the temperature down on the exhaust side of the piston.

Thirty views so far -- and nobody has wondered why the combustion chambers are grooved?

I wondered about that also. For those that are now interested they are called Torque Grooves and you can see a picture and an explanation on Rich's (racerclam) website http://www.richstaylordporting.com/

Nice job Rich! How was the cutting done without causing fin breakage? ; D Victor

easily done with die grinder and cut off wheel

Rich