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If your single Mikuni is giving out at the top end here’s a

 
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norbsa48503



Joined: 07 Apr 2004
Posts: 995
Location: Flint, Michigan

PostPosted: Wed Apr 21, 2004 9:35 am    Post subject: If your single Mikuni is giving out at the top end here’s a Reply with quote

If your single Mikuni is giving out at the top end here’s a fix.


-To hot up a Mikuni, not for the fuel misers or if you lack patience. Start with a 34mm any bigger is a waste of time I tried a 40mm not good. So a buddy is into snow machines and he's reading these ads “turn your round slide Mikuni into flat slide performance "So we buy this thirty dollar piece of plastic that fits in the bottom of the slide smoothing out the recess there. It's called a "UFO" ultimate flow optimizer. Well now the air is undisturbed going in so follow the directions and than some all the way down to a 15 pilot jet or she chucks black smoke. Were the needle jet comes though the throat has to be carefully drilled per instructions, more fuel more air? Oh now the slide won't return to idle so file form plastic so it will. Fettle, adjust again and again. Oh my god it's working. So good is the response that the wimpy Mikuni spring can't hold her at a steady idle seems the air rushing in is lifting the slide. So add an old Amal spring inside the Mikuni spring, there "thanks" Stan at Rocky Point for that one. OK can it get any better oh yea more snow machine magizenes there this thing called a "Dial a jet" seems their motors run wild changes when the temp goes up and down and with all those clunky air boxes it's hard to change jets. So they have these nice big extra deep float drain plugs that you tap a ten thirty two hole into then another at forty five degrees on the top of the carburetor throat. You than hook these together with tubing and on the carburetor body you are given the means to dial the jet in. Now you still have to get your main jet right. But the possibilities are endless when you see that this can also be hooked to a remote float bowl with any thing your brave enough to carry. You see this rig delivers atomized fuel to the center of the throat only when it's moving lots of air and it's adjustable. Please don't ask your mechanic to do this for you because he doesn’t have the time and you don't have the beans. Norbsa48503
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norbsa48503



Joined: 07 Apr 2004
Posts: 995
Location: Flint, Michigan

PostPosted: Mon Sep 06, 2004 9:35 am    Post subject: Reply with quote

Just helped a man go though this with his carb and he was very happy with the pick up in prefomance. The UFO part is the main thing still playing with the Dial-A-Jet. norbsa
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The Unapproachable Norton Commando

At the end of 1967 the Norton Commando was announced.

The Norton Commando was greeted with a certain amount of scepticism because on first sight the commando appeared to comprise of the old Norton Dominator twin cylinder engine mounted at an inclined angle in a set of new cylinder parts.

It was not realized that the new Norton Commando Isolastic method of engine suspension damped out all engine vibration and produced a machine which had uncanny smoothness for a vertical twin. In due course the critics were silenced and the Norton Commando had the distinction of being regarded as the first of todays so called superbikes. There can be little doubt that the original design concept of the Norton Commando has proved correct, since comparatively few modifications of any real consequence have been made since production commenced during 1968.

Now nearly 40 years later Norton Commando riders like us are a breed of our own, and as far as we are concerned its still more fun to go for a blat on the old Norton Commando, and fast. As a Norton Commando owner and enthusiast, my goal here is to promote and give credit to those who keep the Norton name going.

It is more deserving to give credit to the Commando itself, for after all these years it continues to be respected. The original Commando designers like John Favill are those who deserve the credit for developing this incredible motorcycle.

The Norton Commando Roadster and Interstate of the late seventies, never died. Although the Norton Villiers factory dispersed the tradition lived on. Today Kenny Dreer in the USA is developing the new 952 CC Norton. What a great looking bike this is, and its engineering is still based on the original layout. It will be interesting to see how the new 952CC Norton does in todays tough motorcycle market. One thing is for sure, I would own one if I could afford it.