battery to frame

[lobster]

Putting bike back together after pulling the motor and I can't for the life of me remember where to ground the battery to the frame. A little help.
Lobster

[kandrtech]

I believe that the 78 F put the ground in the "normal place" - top left rear motor mount.  I didn't search all of the manuals - but the F Supplement didn't have anything, so I'd say it is the same place.

http://manuals.sohc4.net/CB750K/HSMCB750_1.pdf

[Piute]

                                                  SEE IT THERE ON LEFT

   
   Was on the other side same area/bolt,But I like having it here were all the rest of wireing is.

[shinyribs]

As long as it's making good connection to the frame and the engine case you'll be fine. Painted brackets and such could insulate the engine from the ground. Sandwiching the ground between the frame and the engine case is pretty good insurance that you get a good ground to both. Without proper ground on the engine the plugs cant fire right. Splitting hairs,I know. But you can never be too careful.

[sgtslag]

Actually, Shiny, you are dead right:  floating grounds (bad, intermittent) are a nightmare.  The battery ground is absolutely critical.  As long as it connects to the bike's frame, bare metal, no paint, with a tight connection, you are golden.  Be sure to either torque to spec (70 lb-ft is good), or use a lock washer (nylon lock nuts will not make as good of an electrical connection, so a metal lock washer is a safer bet).  Cheers!

[TOOLS1]

Star washers are the best, for electrical connections.
TOOLS

[lobster]

Nice, and Thanks for the pics.
Lobster