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Discussion Starter · #1 ·
99 efi
Symptoms
Bike starts and runs fine brake lights work
No other lights work
No indicators either
Diagnostic done so far
1 replaced rhs switch assy no change
2 loom fix no change
3 main ground connector under rear tank mount cleaned
4 checked main connectors to instruments all are tight
Any thoughts are warmly welcome
 

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Horn work? If no, as this shares ground with lights, jump a ground to it and see if lights and horn return. Or add a jumper ground directly to a headlight.

Note: I assume all fuses ok?

Otherwise, there are (from memory) 2 more junction blocks hidden in the loom. 1st @ top of engine. 2nd close to headlight. I checked these on mine when I did conventional loom fix. They were pristine, so I let them be.
 

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It wouldn't hurt to take out the clocks and check for corrosion (dark marks on the tracks) on the flexible plastic that the PCB is printed on. Failed joints can be repaired with soldered in wires to bridge the corroded parts. Will have a look for some pictures to show you what to look for.

Usually it's the main loom plug used when the bikes being built that corrodes and the earthing becomes less reliable. The VFR800FI has the same issues and mine were solved when the earth block was removed, wires stripped and soldered into 1 big ball.
 
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