Tohatsu 50 hp it has no power in gear but in neutral it will idle up fine but as soon as I put it in gear she won't get beyond 23 or 24 hundred rpm all plugs are firing any ideas?

It sounds as if the overheat sensor, or CD unit may be faulty. If the CD unit receives a signal from the overheat, or oil pump sensor ( if equipped ), the timing, or fireing will be affected, causing the engine to run at low RPM only, in an effort to save the powerhead.