FZRSupport: the FZROnline Archive

Hi.

I own a -92 FZR600 with a slight electrical issue. My VR broke down on the highway causing the battery to boil and toasting some components of the electrical system.
I switched the VR to the newer one, replaced the battery and changed a total of 8 bulbs in the bike... The worst part however is that I have had a small fire in my ECU.
I'm having spark on cyl 1&4 but not the rest and my tachometer is not working. The missing spark should be an easy fix since the transistor for cyl 3&2 is broke. The Tachometer however is a different task. From what I've figured out so far some of the burnt parts in the CDI are dedicated for the tachometer. I will give it a try to change these parts, 4 resistors and one zener diode but I would need some help with identification. So if there is someone out there who has an open TDI/TID-box and would be kind to provide me with a picture where I can see the color coding of the parts inside the yellow circle, then I would be really happy .



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Top to bottom:
Br B R Gd = 1k, 5%
Zener, unknown, band left in your pic. "A2" marking on the side; no idea what the rating is. Logic suggests it's either 5v or 12v; try 5v first so you don't burn anything that doesn't like 12v!
Bl R Br Gd = 620, 5%
R R R Gd = 2.2k, 5%
Bl R Br Gd = 620, 5%

The tach signal is tied into the 2-3 spark signal. The earlier model tachs simply picked up the fly-back pulse from the coil, while the newer tachs want a 12v or 5v signal from the TCI (not sure which voltage; this will very likely be tied into the Zener diode rating).

The tach may come back to life once you replace the TO-220 ignition transistor. What were you planning to replace it with? For best performance, both coil drivers should be the same.

Thankyou. I've changed the components but it seems like the microcontroller has died as well. So I ended up with a new TCI.

AndersJ wrote:Thankyou. I've changed the components but it seems like the micro-controller has died as well. So I ended up with a new TCI.

A,
sorry you had no luck with the job but I have taken the liberty of adding your picture of the damaged board and DONTZ's answer to the WIKI for future reference
Both of you get the credits for your work see:-

http://fzronline.com/wiki/doku.php?id=tci-repair

Thanks Y-Geo.