as good as Pat's site is for tuning our carbs i was having trouble with the bike hunting at cruising so had a search online,stumbled upon this site
http://www.triumph-bonneville.com/images/Jet6.pdf turns out to be a lot to read well worth it tho imho,turns out my problem was in the airmixture settings had a play with the setting while riding(i can do that with the thumb screws fitted Thanks Brent)

minor adjustment like a 1/3rd of a turn,rode for 5 minutes shut her down rolled to a stop and checked the colour of the plugs

all good for me
hope you guys fine it as helpfull as i have
Benny