I'm not technical but don't like to leave you hangin' for the weekend...
Basically a
Dynojet Kit is a set of needles & springs (+ something else of which I forget the name) which replace the standard ones in your carbs. This changes the fueling. Best results are had when you change the standard airfilter for a K&N filter (more air flows through) and fit aftermarket pipes/cans which help in freeing up the engine by letting it 'breath' more...
Now that there is a change in the Air & petrol flow you need to set up the carbs. This is when you get the bike
Dynoed. (put on to a rolling road)
A Mechanic will take the bike through the rev rang and set the carbs up for the best fuel/air mix to increase power, throttle response and even out flat spots...
All this knowledge can be bought for £4-ish every month - any bike mag will do
