ORIGINAL: MJD
Cool!
That engine is certainly no slouch. I wonder how my older blue head ringed version compares. Good finished weight too, it ought to go like a raped ape.
MJD
I think the blue head X serise engines were more of a pattern engine. For some reason there is almost no information on vintage Super Tigre engines. Highly recomend the X45 its VERY Light and runs great. However the ST card kinda sucks I swaped it out with a perry carb.