No eBay APP ID and/or Cert ID defined in Kunena configurationGPZs are Ninja-type partially faired sporty bikes, like Tom Cruise's in Top Gun, with chain drives. LTDs are nice, comfy cruiser-style bikes. From your Avatar looks like a shaft-drive 550 LTD.
If the bike has no Kawa' manual, I agree your best first step is to hit eBay for one:
For me, another part of getting started in vintage bike ownership was to hit bikebandit-dot-com. They have a "My Garage" feature to narrow down the make/model of your bike, then look at nice exploded diagrams of the bike's parts with all the parts listed out and numbered too. Also, they do stock excellent Haynes manuals if you cannot get one on the eBay cheaper.
Also, for carbs that have been mouldering, I do find that a rubber or plastic mallet is a godsend for getting things moving. Drain the carbs, flush, very lightly tap the carbs to get the motion going, flush and drain again. Drain into a nice old canning jar to see if crapola is coming out or if they are totally stuck. If you can at least improve the situation, you may be able to get the beast to the shop for a proper carb cleaning this season if you have thrown up your hands.
In time, you ought to be able to rebuild the carbs yourself but that is a bit down the pike and will require synchronization tools, rebuild kits for the individual carbs including needles, floats etc.. You may want to do the easy stuff first like a good oil/lune job, check and grease the brakes, make sure the electric is up to par, take off covers and clean, inspect the shaft-drive.
Kudos to you for getting that bike on the road where it belongs! Shaft drive Kawas are awesome.
