Hi ,
I need some help from some SuperTiger aficionados ...
I have three ST G21/.35's .
The best of the three is a brand new (never run) G21/.35 with flat piston . # under the exhaust port motor lug reads " B29 / 8 and has a balanced crank .
The second of the three , is in good shape and like the first has a prop driver that extends back over the aluminum casting (bearing fit) . It hasn't got the wrist pin hole and screw in the rear of the case , though .
Flat top piston , liner with two odd shaped intake ports . Wrist pin with hollow brass pads .
Bronze bushed con rod . No writing undermotor lug . The crank has a circular counter weight and this confuses me somewhat .
The third engine , only the crank (balanced) and the crankcase seem to be of any use and has a flat piston ... No writing under lug .
The prop driver only extends about 3/16" past the front bearing housing .
What I'm wondering is what the second mentioned engine has a circular fly wheel ?
Would it be advantageous to swap it forthebalanced type ?
Thanks