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And how do you get a matching license plate? And the right paperwork?

Im working at the mo so no time to dig out pics or explain, but a quick google search has thrown up this, yeah its a 400 but i presume the principle is the same - http://www.400greybike.com/forum/viewtopic.php?t=42767

I haven't seen the switch on or off the bike so I don't understand how it functions. Is it based on resistance or something. Or is there a part that turns

As far as i remember the one i worked on had the modified neutral switch i to make the bike think it never got past 3rd gear, sounds like yours is the same.

If playing with carbs its likely the tank is off so looking down the wells should be easy enough + dark enough to see flame colour better? IMO the only engine they made sense with, was the original Mini's - plugs at front, directly behind the bonnet!

As long as pressure is high enough to fill the bowl its ok. tis not like efi where fuel pressure directly influences amount of fuel injected. In baron's case maybe the spot on the plenum was unlucky so he has pulsing problems. I did it before, worked fine. Converted to efi as well and like it a lot, although I have to say it also has its challenges.

Weird I didnt have that. Anyway you could make a separate pitot for fpu. Best that nothing interferes with the carbs dynamic pressure.

Wouldn't that give a lean miss? The pitot should always be a better choice as it acts faster to pressure change - that's its whole reason! I've no axe to grind here - carbs are hard enough without having to contend with pressurised air AND fuel . . . . . . . I prefer EFI!

I didn't, but Truls did. You can see the images in his build thread on this page

I had FPU pressure take-off from plenum when I first build this bike (a couple of years back) and it didn't work. I think there is too much pulsing, because it dropped fuel pressure and caused high idling. I fixed it by taking pressure from pitot. @Fredrik_Steenhow did you make adjustable pitot?

There is a mirror attachment on the top that gives you a crappy view down the tube at a 90 degree angle from the plug

How do you see the colour if the device is stuck down the spark plug well of an oil cooled engine? The colourtunes I have seen have all been aimed at the car market. Easy to see when used on a 1979 1600 Cortina.

Just take the pressure to the fpu from the plenum. Doesn’t need dynamic boost. @Fredrik_SteenIdea of adjustable pitot makes a lot of sense!

Never come across anything new fangeld like that in the sticks hear in North Yorkshire but live and learn.

Where did you take pressure for fuel regulator if you only had 2 pitots? With current setup I ended up with 142.5 main jets and now WOT AFR is 12.2. When I open the throttle all the way open at around 5k rpm, AFR drops to 10 (min. on the gauge) and bike is coughing for a second. I was told this happens because sliders are too lightweight and I should glue 8mm nuts on them. Is there any truth on this statement (mk1 bandit bst36)? Pitot is plumbed now like this. All tubes and fittings are 8mm ID. Yes, the "pressure reg" is a line to Malpass with a 90 degree fitting due to space constraints.

Would be interesting to see if it got past 86 on the way down

Lol. Seen it. Seen them filming it too. Brilliant film

You've been around for a few months / years / decades, so I can't believe you've never heard of or about the Colourtune device! Its from the era before EFI when carbs were fitted to everything - only good for idle tuning but perfect visual feedback immediately on adjustment.

i think we are all grasping at straws now

ah ive just got the one (14mm) you can buy a 12mm adapter but that takes the spark further away form the combustion chamber !!! just wondered if it'll still run ok ?

Are the brakes binding?

a movie so bad, it's good

Maybe so , but they get you a lot closer than just setting all pilot screws the same, quite a difference in the settings on each of my carbs, yet it runs noticeably smoother and the air/fuel reading ended up about where I wanted it

Yes, I’ve got a 12 and a 14mm colourtune, was so happy with the results on the bandit that it prompted me to do my gs1000, hadn’t done it since I rebuilt the top end and added the 1085 kit, and again a noticeable improvement

Yeah, I had good results years ago using them mainly on old British bikes. I've long since lost/sold mine however.