Good stuff Merv, I am fond of a nice bright blue spark that would sit a bull on its arse 😁

Ha! 58 miles first run this morning and only problem was a faceache from smiling! and it can only get better!

Wonderful news Merv.

They do grow on ya 😁

Nothing is ever smooth, it seems. New Q6 Emulsion Tube (needle jet) arrived, but about .008" too big to fit the carby body. Not a genuine Mikuni body, so have to accept what happens. Ideal solution would have been to put a reamer thru the carb body so it was compatible for future changes but there is a locating pin at the bottom of the passage and was afraid of breaking the pot metal outer by removing it. So, fill the holes with grease and into the lathe. Slow speed, small bits, it now fits and is soaking in a jar of petrol to get rid of the grease while I have a couple choc bikkies and a cuppa.

Could you post some on the road pics as time goes on? Be good to see the results of your hard work.

Bloody Norah, This thing will keep me broke with speeding tickets! I dropped the needle one groove from center and the difference is unreal. Totally smoothed the motor when pulling whereas it hunted a bit before. Doesn't seem worth changing out of second below 40 mph, and speed limit makes the change to 4th. way too early. Hit the M1 for a run, and at GPS 100 it pulls away like a steam train. Going to really love this old girl.

It's a rather distinctive bit of kit, would be hard to argue it's not you in the picture lol, I'm really looking forward to riding mine next week, I've had it 4 and a bit months now, hanging out! 

When I bought this trike, the first time I started it the missus said I'd have to do something about the noise, and both my little dogs must have thought the world was ending the way they took off into different hiding places. It was loud, with both pipes coming into one and a nice fishtail sticking out the back in bright chrome. I replaced a coupe 4" baffles with 8" ones, but it didn't seem to make much difference. And eventually, the guy directly across the street bailed me up out front one day saying if I started it up again he was going to buy it from me. Now, I wasn't sure if that was a genuine offer because he liked the sound it made, or a polite way of telling me to shove it. The other two or three neighbors poking their heads out with hopeful expressions did nothing to confirm his intentions for me either way.
So, I had to work out how to quieten it down a tad. There wasn't much room under the diff for a muffler, and I made sketches of all sorts of options, some having more pipes then a Scottish pipe band, but in the end the only way I could see was to fit an offset muffler, letting the rear pipe into the body of the muffler about a third of the way down. This caused me a good deal of worry, cause I wasn't sure if it might cause back pressure to either cylinder, and if it did what would be the symptoms and effect of that back pressure.
In any case, I hunted FB marketplace for a suitable muffler. Unfortunately I was not able to find a stainless one in 1 3/4" inlet so had to settle for one in chrome, which will eventually rust where its welded. Finding 1 3/4" stainless pipe with a flange was a problem, so I got hold of a bit of solid round of that diameter and turned an inch of one end down to a snug fit inside the pipe. Then with plenty of grease I was able to force that into a short piece of pipe with my press, stretching the tube to form a good workable flange. That took care of the fittings I needed.
I clamped the muffler under the miller at the right angle and using a holesaw cut the hole into the muffler body,  then put it all together and it fitted like a bought one. And first startup told me everything was going to be good, as the sound was still great without splitting the eardrums. And a road test removed any fear I had of adverse effects on the engine, because it goes like stink. You can see the way I did it in the couple of attached pictures. And now the wife is happy, the dogs no longer tremble, and the bloke across the road? He moved a couple of weeks ago (True story).

I have never seen one like that Merv, ever, necessity is the mother of invention as they say and you sorted it 😁👍

Hey Merv, I worked for a year with a stainless steel muffler and pipe manufacturer in Bulimba in the 70's. Looking back its amazing how low tech but cleverly thought out the machinery was, pneumatic swagers, a hand powered press to punch rows of holes in muffler cores, roller seam welders, pneumatic benders that bent by punching ripples into the inside of the curves.

Steve, you would know the makeup of the inside of what I used then. There was a front chamber with all the holes allowing the exhaust to get between inner baffle and outer body, then exiting thru similar holes into the rear chamber and out the hole at the rear. So about mid way down there was a solid bung I had to avoid, hence the steep angle of the entry hole. I made sure the fitting I welded to the muffler went down level with the inner baffle. I worried the angle may cause back pressure for the rear cylinder, and the gas hitting that of the front cylinder head on may have affected the front cylinder. But if any of this happened, it's not noticeable, and certainly hasn't slowed the old girl down in any way. Looks funny, maybe even a bit bodgie, but worked for me so happy with it.