what would be the best class to race in i have a 1976 stx chassis . I have a 76 340 motor and a 76 440 motor. The 340 would race in e stock and the 440 would race in d stock.
Thx
Thx
Yamaha Nutz
New member
go with the 440
was 76 stx/exciter a piston port or reed motor. the motor that came in my 76 340 stx was a piston port no reeds.
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Yamaha Nutz
New member
yes all 340 exciters 76-78 are piston port not reed like the 440