FZR died on the motorway!! Electrical help needed.

**pete376403** · 9th October 2009, 18:24

Its worthwhile mounting the r/r where it can get a decent flow of cooling air -excess voltage is converted to heat and it needs to go somewhere. On my GS Suzuki (which have notoriously crap charging systems) I mounted the r/r on the frame downtubes just under the steering head. Use decent sized cable and soldered connections with heat shrink insulation. Unless they are well made, crimps add resistance to the circuit, which causes heat. And there is no place for electrical tape as insulation as it it peels off over time and leaves exposed live connections.

**BASS-TREBLE** · 9th October 2009, 20:46

Good news!
Connected a charged batt, fuel pump primes, and she cranks over.

Last time that the TCI was stuffed, the fuel pump didn't prime. I didn't check spark but assume it's all good.

Now just need to organise a VR from ebay.

Probably mount VR by LHS rear subframe, I think there is sufficient airflow behind it from wheel arch etc .

I commute daily with my bike, will be using dad's BMW R11GS for now, I might need to change my riding style.

**mossy1200** · 9th October 2009, 20:53

Originally Posted by BASS-TREBLE

Good news!
Connected a charged batt, fuel pump primes, and she cranks over.

Last time that the TCI was stuffed, the fuel pump didn't prime. I didn't check spark but assume it's all good.

Now just need to organise a VR from ebay.

Probably mount VR by LHS rear subframe, I think there is sufficient airflow behind it from wheel arch etc .

I commute daily with my bike, will be using dad's BMW R11GS for now, I might need to change my riding style.

Disconnect the vr and the bike will run without it so you can check it out.
Battery will last 20mins without lights running if fully charged.

**BASS-TREBLE** · 9th October 2009, 21:26

She runs like normal, friggen tach doesn't though!!

Also the lights didn't work, not even in dash, fuses all good.

Edit: just checked, high beam works, so the lights that were on at the time were obviously blown.

**mossy1200** · 9th October 2009, 21:39

Originally Posted by BASS-TREBLE

She runs like normal, friggen tach doesn't though!!

Also the lights didn't work, not even in dash, fuses all good.

I have just looked at exup wiring diagram and your bike is most likely wired the same.
The brown wire from rectifier runs up to the isolator switch secondary contacts.This then feeds the tacho,main headlight,indicators and dash lights so what you have appears to be normal without r/r connected.It seems this is done so the lights etc turn off with the run stop and start switch rather than flatten battery