Self styled- Game Changer?

Something new and quite radical! the needle shown in this view of a modified Mikuni TMR 4t carb is at the heart of this concept. It is hollow with multiple side jets spraying fuel, the tiny holes are proportioned to the position of the slide opening as is the relative pitching of them for mixture control.Take a look on Pops Yoshimura`s sit it is all explained there, nice photograph though.

Cheers, Trevor

Fascinating pic, Trevor...

I often wonder whether there wil be direct-injection into the cylinder head *** in a production motorcycle...?

Way back in the late '60s early '70s the system of spark plug alnogside injector was used by Texaco running on diesel fuel . It was a system that gave very low exhaust pollution before someone decided
that diesel exhaust particulates (soot) were the diesel's problem ...
... which is killing off the diesel now....


***Or is there a such a system in production now -- I ask because I have lost touch with Auto Engineering.....

Cheers!

JayBee.........

Funny how things go around in cycles John, a few years ago we car buying public were encouraged to buy frugal diesel engine cars and manufacturers were encouraged to develop them. Mine has a 1.6ltr engine, it replaces the 2ltr one I had. The 1.6 is more powerful and produces more torque, and does more miles to each gallon of fuel than its predecessor, and when I stop in traffic so does the engine thus saving fuel and the environment and I am charged only £20 road tax for a year. But, I feel uneasy about its exhaust emissions that we now know to be so harmful. That is what can happen when politicians are allowed to make moral and ethical decisions they think are beneficial. They know best and we know nothing, and then continue to ignore the scientists who challenge the unreality of the stated beliefs of those same politicians.

Got absolutely nothing to do with Bantams of course, until that is, someone decides to analyse the muck that comes out of the end of an exhaust system? Funny how the officials get so sniffy about just noise, but ignore the potentially lethal cocktail of gases pouring out of a grid full of Bantam silencers, all of them running on leaded Avgas!

Trevor

Thanks Trevor...

I ought to have a bad conscience over my last job in Canada where I went into America telling them that diesels were cleaner than petrol engines and air-cooled engines were just as quiet as water-cooled...

... but I was being paid 6 times more than my salary had been at Ford Dunton R&D...

Actually the combustion system I helped to develope had lower peak combustion pressure so noise and pollution were better than many a petrol engine in series car production at that time...

To keep this Bantamwise, Derek Neil -- the brother of Bantam Racer Colin who worked for Dr Joe Erhlic on two stroke engines at de Havilland -- was the Dunton Dev Engineering Supervisor who became my Bantam engine tuner and chief instigator of my becoming a racing Bantam builder; and Les White, another Dunton Engineer was the one who found our 125 engine in a field -- was our machinist.

I know! I said it all before but I've gone all alla-keefick in my advancing years.

Cheers!