honda 2002 225hp vibration issue

Okay Guys would like some imput,

I have twin 2002 Honda 225hp 1500 hrs on them.. Port motor has started to vibrate diiferent then starboard motor can feel it thru out boat . Only shakes/vibrates at idle and low spped in no wake zones once I go onto plan and and accelrate vibrations go away.. Almost think it might be a ignition issue ? Its not effecting any power issues just shaken more then other motor and more then it use to... Motor only not bracket ..... any thoughts if need be will make a video of it to help see what I am speaking about ?

thanks
Jamie

Jamie,

My first suspicion would be a plug, coil, or coil wire. The shop manual has a procedure for testing the coils.