IGNITOR SCHEMATIC

[Anonymous]

Does anyone have a schematic of the ignitor for a GS1000G? (part # 32900-45110) If not how about a source to purchase one at a reasonable price. I pulled it apart and it's only about 8 transistors, some diodes resistors and caps. Static checks show no obvious shorts but when connected to the bike, it pulls my coil voltage (orange/white wire) down to 11VDC with a 12.4 volt battery. I have spark but it's weak. The pickup reads 325 ohms and I do get a better spark when I use my DVM to trigger the ignitor, but only in the diode check mode, not in resistance mode. It is a auto ranging meter and may not have enough voltage in the resistance mode to trigger. Any feedback is greatly appreciated.

[SqDancerLynn1]

I have never seen a diagram for the ignitor
OK this is for a Yamaha but the idea is simillar

http://members.aol.com/ddenowh/TCI/symptoms.htm

[Anonymous]

Here's an ignitor diagram from a GS850G/1000G:

http://home.wanadoo.nl/kastanje/www/ignitor.jpg

I don't have any values for the components though.




From the service manual:

Pickup coils resistance = 250-360 Ohms.


Ignitor test procedure:

* Disconnect the pickup coils;
* Remove spark plugs #1 and #2; let them rest on the engine, with high voltage leads connected;
* Set a multimeter to the Ohmx1 scale;
* Set the ignition switch to "ON";
* Connect the multimeter test leads to the ignitor input wires - positive lead on blue wire and negative lead on green wire;

Connecting test leads > spark plug #1 should spark;
Disconnecting test leads > spark plug #2 should spark.
(Assuming that the coils are okay)

If you don't have a multimeter with an Ohmsx1 scale, I think that connecting a 1.5V battery to the ingnitor input should work too (positive to blue wire; negative to green wire).

Hope this helps.

[Steve]

Re: IGNITOR SCHEMATIC

Does anyone have a schematic of the ignitor for a GS1000G? (part # 32900-45110) If not how about a source to purchase one at a reasonable price. I pulled it apart and it's only about 8 transistors, some diodes resistors and caps. Static checks show no obvious shorts but when connected to the bike, it pulls my coil voltage (orange/white wire) down to 11VDC with a 12.4 volt battery. I have spark but it's weak. The pickup reads 325 ohms and I do get a better spark when I use my DVM to trigger the ignitor, but only in the diode check mode, not in resistance mode. It is a auto ranging meter and may not have enough voltage in the resistance mode to trigger. Any feedback is greatly appreciated.

Can you clearly see the values of the two smaller diodes within the ignitor? I am trying to find the values so I can attempt to fix a bad ignitor I have.

Thanx

[Anonymous]

Re: IGNITOR SCHEMATIC

Does anyone have a schematic of the ignitor for a GS1000G? (part # 32900-45110) If not how about a source to purchase one at a reasonable price. I pulled it apart and it's only about 8 transistors, some diodes resistors and caps. Static checks show no obvious shorts but when connected to the bike, it pulls my coil voltage (orange/white wire) down to 11VDC with a 12.4 volt battery. I have spark but it's weak. The pickup reads 325 ohms and I do get a better spark when I use my DVM to trigger the ignitor, but only in the diode check mode, not in resistance mode. It is a auto ranging meter and may not have enough voltage in the resistance mode to trigger. Any feedback is greatly appreciated.

Can you clearly see the values of the two smaller diodes within the ignitor? I am trying to find the values so I can attempt to fix a bad ignitor I have.

Thanx

Looks like the both diodes are just there to feed the base of the first transistor with either a negative or a positive pulse.
Any multi purpose diode should be able to do the job. Try a 1N1004 or similar.

[Anonymous]

When checking the diodes I found them OK. I removed the transistors one at a time and found them also OK. The two darlington transistors mounted on a heat sink didn't read like I expected so I called the local electronics supplier and ordered two. I also ordered the other 5 transistors since the grand total of the seven transistors was approx. $13. You can remove the diodes and look for a part number on most of them. I wrote all of this down but since I was missing lots of riding time I elected to purchase a Dyna 3 so I never finished the repair on the original ignitor. If you'd like I can look through my Suzuki information and get you the part numbers I have. Unfortunatly, this information is at home and I'm at work.

[Steve]

=If you'd like I can look through my Suzuki information and get you the part numbers I have. Unfortunatly, this information is at home and I'm at work.

I would be grateful.

[Anonymous]

1980 GS1000G ignitor.

No designations of transistors on PCB, but follow numbers on transistors.
Qty 2 - D977 - 2SD977 Darlington- use SK9431 - $3.95 each
Qty 2 - C1213 - 2SC1213 - use ECG 289A or NTE949 - $1.42 each
Qty 3 - C945 - 2SC945 - use ECG 85 or NTE85 - $1.02 each

All diodes checked good out of circuit. Only a few caps and check them out of circuit for shorts. No resistors burnt or overheated.

These are the transistors I found in my ignitor. I purchased them through a local electronics supplier for the cost above. I was unable to install since I already purchased a Dyna3 because of the dwindling "Prime Riding" time. This doesn't eliminate your pickup coils, but testing as per advice of this forum (search by ignitor) can tell you if it working.

Good luck
RockinGS

[Anonymous]

Check your connector. The ignitor may be OK. Excessive resistances in the connections will give voltage drops.

[Steve]

There are 4 diodes on the ignitor. Two larger ones, two smaller ones. I need to know what the two smaller ones are and what to replace them with. One is unreadable on this one and the other one is litterally "burnt".

Thanx for any info you can supply.

[Steve]

Does anyone know what these diodes are? Diodes are a dime a dozen, I should be able to repair this ignitor if it's only a diode issue as it appears, but I need to know what the diodes are. What the values are.

Thanks in advance.

[Anonymous]

Steve,

I didn't document this since they all tested OK. I'll take a look next chance I get to see if I can see some numbers on them. The next couple days will be tuff since I have to work OT

[Steve]

Just checkin to see if you had a chance to look yet?