RE: OS 70 Ultimate w/pump
the saito 82 has a spot where it runs rough. the os 70 ultimate has the power where the saito can not touch it. i use saitos and they are great engines. but the 70 ultimate will run circles around the 72 saito. the os has more power verticle in a hover. but the saito is hard to beat. i have had a saito 220-180 several 150's a few 72's and 1- 82 they are the best engines with out a dought. but the os 70 ultimate with a pump has more power. it is a sweet engine. i have two friends that have them. I went with a 72 saito on a profile omp edge, they have more power than I do. I also have a os 55ax with a ultrathruse muffler.
no one needs more power than that has.
good luck I THANK I WILL GET THE OS 70 ULTIMATE NEXT IF YOU HAVE ONE LET ME KNOW. BECAUSE I LIKE A 4 STROKE TORQUE. BUT THE 55 WITH A PIPE IS SWEET.
HOLLYWOOD