Under the right side of the false tank there should be a reservoir you can add coolant to that is connected to the radiator.
Yes....Randall Washington in Chapel Hill, NC has a website www.randakks.com. He has put together the best manual and a DVD you can purchase from his website. He is the foremost authority on the GL1000. He has a lot of good information about those bikes. Hope this helps
http://goldwing.soylentgeek.com/Honda%20GL1000%201978%20to%201979%20Color%20Schematic.jpg
There is no dip stick on these models. So, with the bike on the center stand, start the engine, look down around the foot brake area, you will see a little window with a screw in the center, that's the place. Use a flashlite and have someone turn off the engine, you will see the oil settle. The level must be in between the lines.
GL 1000, 5 speed, with clutch. The engine oil is all you need.
According to the GL-1000 shop manual Cylinder head bold torque is 38-41 ft-lbs.
Honda Prelude was created in 1978.
Front - 3.50 x 19 Rear - 4.50 x 17
No.
A 1978 Honda Civic 1.2L engine, 2 dr hatchback sold new for $3,625.
1978
1978.
Just regular Prestone is fine.