map balancing

[garth russ]

using mj on a650 single the load needle jumped around a lot- maybe to the point of not being usable. tried several different methods to snub the needle including an orfice fitting, sticking a q tip up the vac line. not much room for anything large like a canister on the bike. found a real small 1/4 in airline regulator with a knob adjustment so i turned the knob in until the needle smoothed out but not too much that it didnt work then secured the knob adjustment with tape around valve and knob.