I have 2002 Nomad, E.F.I. At idle, and low r.p.m. engine misses, runs very rough. At higher r.p.m. runs smooth. Plugs black, changed no help. Dealer no help.
If it has sat for any length of time....or you possibly got some bad gas....try using some SeaFoam in the fuel. Add 4 oz's to a tank full and drive for at least 20 minutes to help get any "possible" water / moisture out of the tank. You can buy it at most auto parts stores like Napa or whatever you have where you live.
when was the last time your carbs were tuned up.....that could be the problem. My bike was doing the same thing becuase the fuel air mix was not right.
A forum community dedicated to Kawasaki Motorcycle owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, maintenance, off-road, touring, street bikes, and more!