[THEFERMANATOR]

Sounds like your carbs need to be cleaned, and possibly rejetted(I have yet to work on an old school looper that runs right on todays fuel with stock jets). And sounds like your voltage regulator is going bad. First thing is to put an accurate volt meter on it to make sure it is actually charging that much, if it is then the regulator is probably going out. It should stay under about 14.5-14.8 volts, anything more is going to do a number on your battery. And to rebuild the carbs, there I no easy way about it. Also that engine has some rather fragile plastic carbs on it that require extra care when rebuilding them(ESPESCIALLY when tightening them back down). And is your model number that you listed on the powerhead or the clamp bracket. Most of the early 86-87 200/225's have been upgraded to the later style 88-92 powerheads.