I need to know if i need to put out the engine to replaced the stator??

I can't talk to the 1500 or 1800, but for a 1200 the answer is YES
:(

hello and welcome to GWOF bigboy10, yes the engine on all 1000,1100, and 1200 wings need to be removed to replace the stator

You could have a conversion kit put on instead of replacing the stator and regulator.If you change the stator;be sure to change the regulator also.I am having a conversion kit put on my 1984 Goldwing instead of the changing the stator and regulator. The part cost $660;but if it goes bad again it will be a easy install.I have heard mixed reviews on replacing the stator.Some say it last a long time;others say that it last less than the first one.Good luck by all means.
Donald Lang-Smooth Thunder