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Electrical power but no go

Started by Gamut, April 26, 2025, 06:08:16 AM

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Pat Conlon

Quote from: Sparky84 on April 26, 2025, 06:33:41 AMHave you checked your kill switch ?

....and the the jelly donut goes to Alan for the win!

The 2 red dash lights for oil level and fuel are the key hints.
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

T Legg

Quote from: T Legg on April 27, 2025, 12:53:35 PMThe "flasher relay"  relay also contains the diode block which is part of the starting relay coil circuit. I have a picture of the wiring diagram from the factory repair manual but that diagram is incorrect. I have a corrected version I made back in Reno.I'm out of town up in Idaho right now but when I get back I'll post a copy of the corrected diagram. Actually I do have the copy I corrected so this picture is correct.

 I was wrong the flasher relay and diode block are two discrete components as can be seen in the diagram .
 I've had the starter switch problem before. Its easy to take the switch apart and clean up the contacts using the rubber eraser on the back of a pencil.
T Legg

T Legg

Here is a picture of the point connection wiring diagram from the owners manual.
T Legg

T Legg

Quote from: JohnnyTheCraneGuy on April 27, 2025, 10:57:40 PMI will say I've begun developing this issue as well, I'll go to crank the bike, no starter, oil light comes on. I jog the kill switch a few times and she'll fire up.

I too have my clutch, and sidestand switched bypassed (jumpered).

I'll try some contact cleaner on the kill switch, then maybe pull the relay and apply power to the coil and see if I can isolate it there.


It can be pretty dangerous leaving your kickstand switch bypassed. One senior moment of riding off with the kickstand  down can end in disaster. You shouldn't rely on the switch and should do a visible check before starting your bike every time but the switch might save you if you forget.
T Legg

Pat Conlon

I've been told that there were FJ's in Australia that never came with a side stand safety switch...
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3