1990 Ignition removal for a 750 Katana? - Motorcycle-Journal Forums

Papa · 10-17-2004, 10:31 AM

Bought a 1990 Katana 750 that needs to have the ignition (where the key goes) replaced and I have never done it on a bike before. I could just have a new key made, but I want make sure the engine is good before I do that since I have another Katana I can swap ignition and keys with. I bought the 1990 on the cheap without keys and not knowing the full extent of the engine (though they said it was very good).
I appreciate anyones help with this...or is there a way to start it without keys? Jumping something? I thank you in advance for your replys and the clearest detail possible. OR, If someone has a diagragm, please just e-mail it to me. dan.james@sbcglobal.net

BenchFalco · 11-19-2004, 11:25 PM

I've never done it before either but....

It would seem to me that since there's only a few wires coming from the keyholder, just rip them out (or cut them nicely) and then cross the wires til you get something that works, bypassing the keyholder completely, bad news is that you'll have to cross the wires to get the bike to run. Essentially you're hotwiring the bike as far as I can guess.......There aren't many wires there, so it shouldn't take much time. Then just reattach your wires once you've gathered all the info you need, and you're done. The worst thing that could happen is you blow a fuse or two...........but that's still cheap isn't it...

Simple.

St0nkingByte · 11-20-2004, 12:14 AM

Usually the ignition is on a pigtail with a connector about six inches up the wire so you don't need to cut it off.

BenchFalco · 11-20-2004, 12:27 AM

That's true.....skip the cutting if you can

Papa · 11-20-2004, 11:50 AM

Pulled the tank and found the connector. Found a wiring diagragm and cross connected two sets of 4 wires. Turned over immediately, then the battery ran down.. but it turned over. Since it turned, we had a locksmith make a new key... deep charged the battery... and we have lift off.
Thank you for your suggestions and help.

St0nkingByte · 11-20-2004, 05:29 PM

Sweet, glad to hear. I don't know much about motorcycles but I know that because one of the first things I did with my bike was lose the one and only key

Of cource once I had pulled the ignition and had an appointment with the dealer to take the ignition to them to get a duplicate key I found the original.

cappy1193 · 04-14-2007, 05:14 PM

Do you still have the wiring diagram? WHere can I get a copy?

10-17-2004, 10:31 AM	#1 (permalink)
Papa Newbie Joined: Oct 2004 Posts: 8	1990 Ignition removal for a 750 Katana? Bought a 1990 Katana 750 that needs to have the ignition (where the key goes) replaced and I have never done it on a bike before. I could just have a new key made, but I want make sure the engine is good before I do that since I have another Katana I can swap ignition and keys with. I bought the 1990 on the cheap without keys and not knowing the full extent of the engine (though they said it was very good). I appreciate anyones help with this...or is there a way to start it without keys? Jumping something? I thank you in advance for your replys and the clearest detail possible. OR, If someone has a diagragm, please just e-mail it to me. dan.james@sbcglobal.net __________________ Papa Grandfather of 4---3 are Katanas

11-20-2004, 12:14 AM	#3 (permalink)
St0nkingByte Sprocket Pilot Joined: Nov 2004 Bike: 2005 BMW R1200RT Location: Bellevue, WA Posts: 893	Usually the ignition is on a pigtail with a connector about six inches up the wire so you don't need to cut it off. __________________

11-20-2004, 11:50 AM	#5 (permalink)
Papa Newbie Joined: Oct 2004 Posts: 8	Pulled the tank and found the connector. Found a wiring diagragm and cross connected two sets of 4 wires. Turned over immediately, then the battery ran down.. but it turned over. Since it turned, we had a locksmith make a new key... deep charged the battery... and we have lift off. Thank you for your suggestions and help. __________________ Papa Grandfather of 4---3 are Katanas

11-20-2004, 05:29 PM	#6 (permalink)
St0nkingByte Sprocket Pilot Joined: Nov 2004 Bike: 2005 BMW R1200RT Location: Bellevue, WA Posts: 893	Sweet, glad to hear. I don't know much about motorcycles but I know that because one of the first things I did with my bike was lose the one and only key Of cource once I had pulled the ignition and had an appointment with the dealer to take the ignition to them to get a duplicate key I found the original. __________________

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11-19-2004, 11:25 PM	#2 (permalink)
BenchFalco Newbie Joined: Nov 2004 Posts: 22	I've never done it before either but.... It would seem to me that since there's only a few wires coming from the keyholder, just rip them out (or cut them nicely) and then cross the wires til you get something that works, bypassing the keyholder completely, bad news is that you'll have to cross the wires to get the bike to run. Essentially you're hotwiring the bike as far as I can guess.......There aren't many wires there, so it shouldn't take much time. Then just reattach your wires once you've gathered all the info you need, and you're done. The worst thing that could happen is you blow a fuse or two...........but that's still cheap isn't it... Simple.

11-20-2004, 12:27 AM	#4 (permalink)
BenchFalco Newbie Joined: Nov 2004 Posts: 22	That's true.....skip the cutting if you can

04-14-2007, 05:14 PM	#7 (permalink)
cappy1193 Newbie Joined: Apr 2007 Posts: 1	Do you still have the wiring diagram? WHere can I get a copy?

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