YAMMIEGOD3:16 said:SEEMS THIS QUESTION COMES UP ALOT. 76 440 AND 77 SRX USE A .40 mm POWER JET CARB. SSR USED A .44 mm POWER JET CARB. NOW, YAMAHA STAMPED THESE BECAUSE THEIR PER MODEL AND THERE WAS A LEFT AND RIGHT. 77 SRX WAS 8F2. SSR WAS 8H0. 76 SRX WAS 8A7. THEIR WORTH ALOT IF ANY OF THESE #s ARE ON THEM. 3:16 (yammie tony)