[Honda Africa Twin News]

Maybe, maybe not, but Honda did just recently publish new patents that show they're at least thinking about 2 strokes in some capacity.

Development of 2 strokes has slowed considerably alongside tightening emissions regulations. The brappers as most know them are famous for their blue black belches of smoke and unburned fuel, but they also go like lightning, are far lighter, simpler and pack a whole bunch of power into a compact package.

The patents were discovered by Morebikes.co.uk on July 17th 2015, originally filed by Honda on October 15, 2014.

In Figure 1, numbers 71, 70 and 74 delineate a fuel injection system "mounted on the engine main body so as to inject fuel onto a back side of the piston and/or part of the side wall of the cylinder bore". Mounted low in the cylinder and angled upwards, "located under the piston via the open end of the scavenging port or via the open lower end of the cylinder bore". The fuel is sprayed as a mist over the scavenger port and "deposited on the surfaces of the piston and the cylinder inner wall promoting the cooling of such parts"

Honda believes that they can eliminate most of the complexity that has dogged other fuel injected 2 stroke efforts.

However its not all joy. This design may not be for motorcycles. The diagram seems to show a long-stroke engine, including pushrods, in Honda's opening statement they say "the two-stroke engine is often preferred over the four-stroke engine in the field of general purpose engines because of the simplicity in the structure.". Further on they mention elsewhere that "the fuels that may be used for this engine include gasoline, diesel, kerosene and utility gas"

It's starting to sound like a fixed RPM generator...

Of course it's also possible that this is the general makeup of Honda's next generation 2 stroke technology, its believed that Husqvarna/KTM are sitting on their own clean 2 strokers, biding time until either the market is ready or costs and complexity are able to be reigned in.

Wouldn't anyone like to see a redux of the old fuel injected EXP-2 Dakar winning prototype?

 

[Paige]

But does anyone think that 2 strokes can get over their perception? V8's are currently suffering from the same stigma. Honda might not do it simply because some EV owner is too dense to understand the coal he charges his car with is far worse then a bit of blue smoke

 

[Adventurer]

But does anyone think that 2 strokes can get over their perception? V8's are currently suffering from the same stigma. Honda might not do it simply because some EV owner is too dense to understand the coal he charges his car with is far worse then a bit of blue smoke

Too bad there are many more like that which have bought into the marketing

 

[Paige]

Too bad there are many more like that which have bought into the marketing

I'm surprised there isn't more effort and money going into making 2 strokes 'clean'. With the current push to downsize engines (in the auto industry at least), I'd imagine the far more power dense 2 stroke might start getting some love...