2 or 4 Stroke?

[kz1000st]

Nope Borg. I had the real deal. A 1974 Kawasaki H-1 KH500. It was an awesome motorcycle. Even then it was only marginally slower than a Kawasaki 900cc Z-1 which was only a toss up in speed with an H-2 two stroke triple. The difference was that a Z was more civilized.

"Your right on that a 4 stroke oil pump can fail, but most 4 strokes have low oil pressure kill sensors."

Maybe on some engines but I can tell you that somebody on another forum fried his GY6 motor when the oil pump ceased functioning. He heard a strange noise when the chain fell off the pump, rode like 10 miles home and it smoked like a fiend. Yes, of course, pre-mixing the fuel on a two stroke is the only safe thing to do but many mixing pumps compensate for load and throttle position for more efficient use of the oil.

On my Kawasaki the pump had a cam shaped cable actuator that poured more oil in at bigger throttle openings. You should have seen it smoke when I blew past Harley Sportsters. The Japanese must have been inspired by WWII destroyer smoke screens.