Red, white and smoky: 1985 Kawasaki KR250S

The 1985 Kawasaki KR250S was a street-going version of a two-stroke road racer that took home four championships in the 1970s. They weighed less than 300 pounds, made 45 horsepower and packaging was kept tight with a weird “tandem twin” engine design. The mill was essentially two singles in a line with a unified crank.…

Ringer: 1984 Yamaha RZ350

I know that the RSBFS reader loves a good two stroke. And what better to post than a well-kept Yamaha RZ350? The last of the true factory street bike smokers, the RZ was successfully imported into the US – and even California! – for a short while. And so while these are not grey bikes…

Minty Fresh: 1984 Yamaha RZ350

The RZ350 is a special sort of machine in the annals of RSBFS. The last of the 50-state factory two strokes, the little parallel twin that could utilized liquid cooling, a computer controlled adjustable exhaust port (YPVS), and catalytic converters. Even with all of this tech it was short lived on US shores, and even…

Featured Listing: 2Moto 2M400R-SP

If you are thinking that you haven’t heard of the 2Moto 2M400R-SP, you are probably correct. But I’m sure you have heard of Yamaha’s wildly successful two-stroke, the TZR-250. And knowing RSBFS readers, you probably wished for something like that – but with more horsepower – for your street ride. I mean, imagine the wild…