Hi, look at this website, www.wingovations.com/repairing-the-neutral-switch could be the answer to your problem, good luck if you have to take the engine out.
Perry
March 2013
I can answer this question...
honda goldwing gl1100 neutral light on all the time?
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix motorcycles.