Appreciate the intel and advice Mcdroid and I will see if I can find the service manuals....I will need them. I believe the engine is the same as the carbeurated 1983 GPZ1100 and, if so, I can try and find the service manual for that. I am aware of the tank issue and understand that it was repaired. I have been riding it--vs. just showing it and intend to do more once I have the gasket repair done. I am the second owner and had been looking for one for a while but will keep you in mind if circumstances change.//Craig