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
250 SL head swap
Re: 250 SL head swap
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 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?
Re: 250 SL head swap
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/
Bill Chapman, Monument, CO
Raced and Modified Hodakas in Statesville NC back in the day.
Raced and Modified Hodakas in Statesville NC back in the day.
Re: 250 SL head swap
Nice job Rich! How was the cutting done without causing fin breakage? ; D Victor
1978 175SL
1976 03 Wombat
1975 99 Road Toad 2
1974 98 Super Rat
1974 97 Super Combat
1973 96 Dirt Squirt 2
1973 Wombat Combat
1973 Combat Wombat
1972 94 Wombat
1972 Super Squirt
1971 92B+ Ace
1970 92B Ace 100B 2
1968 92 Ace 100
1966 Ace 90
Re: 250 SL head swap
easily done with die grinder and cut off wheel
Rich
Rich
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