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Newbie with no fuse box

P

portdave

Forum Mentor
Past Site Supporter
Awesome site!! I have learned so much in the last week. Just bought a 1978 GS750. Trying to read and learn as much as I can. Just ordered a service manual. Working thru some electrical issues. I have the charging issue. I need to do some more tests.

I can't find the fuse box. Looked right near the R/R stuff and I can't find it. Maybe someone else removed it? Trying to fix brake lights and turn signals. I am thinking of ordering a new main wire harness. I would like to fix this up as much as possible.

Also on the brakes I need new back pads. Rotor has some hot spots. I noticed that they are expensive compared to most cars I deal with. Can they be turned? I hope to find the right thickness in the service manual.

Thanks so much for the insights.

David
 
Some of the earlier bikes have a single fuse. Yours might be one of them.

"Hot spots" on the rotor might indicate that it is warped. They can not be turned like a car's rotors, but there is a grinding process that can be used if they are above the minimum thickness (which should be stamped on the rotor somewhere).

.
 
Steve said:
Some of the earlier bikes have a single fuse. Yours might be one of them.

"Hot spots" on the rotor might indicate that it is warped. They can not be turned like a car's rotors, but there is a grinding process that can be used if they are above the minimum thickness (which should be stamped on the rotor somewhere).

.
Click to expand...


Very possible. I think somewhere in mid-model year 78, they started putting the fuse block on the 750s, but by 79 they all had them im pretty sure. My 77 has a single main fuse...BIG suggestion for you, to save you HOURS of frustration later. ELIMINATE the glass tube type fuse, go to your local autoparts store, get a blade type and a blade type fuse holder, and install that in its place. After a while, the glass holder, which uses that spring steel holder clip garbage, starts to get loose, and no amount of trying to crimp it back together will get it tight enough. I had an intermitant open right there, and it drove me and a buddy NUTS for a couple hours looking for it, because when we would touch the meter to it to test it, that lil bit of pressure would close the circuit. Man i was angry that night.....
 
TheCafeKid said:
Very possible. I think somewhere in mid-model year 78, they started putting the fuse block on the 750s, but by 79 they all had them im pretty sure. My 77 has a single main fuse...BIG suggestion for you, to save you HOURS of frustration later. ELIMINATE the glass tube type fuse, go to your local autoparts store, get a blade type and a blade type fuse holder, and install that in its place. After a while, the glass holder, which uses that spring steel holder clip garbage, starts to get loose, and no amount of trying to crimp it back together will get it tight enough. I had an intermitant open right there, and it drove me and a buddy NUTS for a couple hours looking for it, because when we would touch the meter to it to test it, that lil bit of pressure would close the circuit. Man i was angry that night.....
Click to expand...


I will look for the glass type fuse but I don't remember seeing it. Might have already been changed. I have a lot to learn but I like the process.

David
 
portdave said:
I will look for the glass type fuse but I don't remember seeing it. Might have already been changed. I have a lot to learn but I like the process.

David
Click to expand...

There is a little clip mount to hold the fuse holder, it is in front of the starter solenoid, two little prongs. The holders seem to be gone usually. I just put shrink tubing around the fuse and it's wires, and tie wrap it in place as a temp fix until I can get around to putting a fuse block in with separate fuses for different circuits like the later bikes.
 
tkent02 said:
There is a little clip mount to hold the fuse holder, it is in front of the starter solenoid, two little prongs. The holders seem to be gone usually. I just put shrink tubing around the fuse and it's wires, and tie wrap it in place as a temp fix until I can get around to putting a fuse block in with separate fuses for different circuits like the later bikes.
Click to expand...

Just got home and looked and I don't even see a fuse anywhere other than the main fuse the guy added before me going to the battery for the dynatek system.

I need to take some pics and stare at the wiring diagram.

Thanks for the info.

Any brake recommendations? I need to search this...
 
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