How much can you find by these letters on the Jugs. 433cc S,SB,SD,WB,SC. SPEC WISE?
YAMMIEGOD3:16
Active member
WELL THE 433 cc IS PRETTY SIMPLE SPEC WISE. YAMAHA USED LETTERS AFTER THAT TO I.D. ENGINES PER MODEL. 3:16 (yammie tony)
Hey, maybe I have a diamond in the dust!!!!! never know unless I ask..YAMMIEGOD3:16 said:
Snojet Steve
New member
W is a generally more reliable, lower compression, double piston ring engine. S is a fan cooled sport engine with single ring pistons, more RPM and compression. X is free air stock engine. R is racing. The widest range of lettering is in the "S" series. There are usually just minor porting and piston differences between these engines.
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Would SF be correct for a 78 Exciter. I'd be interested if anyone new the S's by year model
Tx,
Would SF be correct for a 78 Exciter. I'd be interested if anyone new the S's by year model
Tx,