SuzukiSavage.com /cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Engine runs with key off /cgi-bin/YaBB.pl?num=1520472614 Message started by JWR4 on 03/07/18 at 17:30:13

Title: Engine runs with key off Post by JWR4 on 03/07/18 at 17:30:13 Have to use the engine kill switch to turn off the motor. Does this imply a failed igniter box? It's not the switch, as engine runs even with the switch un-plugged. Thanks, JR

Title: Re: Engine runs with key off Post by justin_o_guy2 on 03/07/18 at 20:06:36 Just started that recently? What work has been done before that started? Need more information than provided

Title: Re: Engine runs with key off Post by batman on 03/08/18 at 00:05:38 It's a Café conversion? Did you move the key switch? did you do the wiring yourself ?

Title: Re: Engine runs with key off Post by justin_o_guy2 on 03/08/18 at 05:10:37 Does this imply a failed igniter box? Not yet, but you better unhook it.

Title: Re: Engine runs with key off Post by Dave on 03/08/18 at 05:35:02 In your only other post you inquired about shorter cables for your RYCA Cafe conversion......so it appears you are doing a Cafe'. If this symptom showed up after you did the wiring changes - most likely you have done something wrong in the conversion process.  I am not sure how we can help with so little knowledge of what you have changed/altered/removed/added. Does any of the other electrical systems remain on after you turn the key off?  Does the starter, lights, turns signals, brake lights or horn still function with the key off?

Title: Re: Engine runs with key off Post by batman on 03/08/18 at 07:59:11 Justin-O -Guy2,  has raised a point , If there is power to the ignition module with the key off/or on but the bike not running, it can burn up. I'd be taking off the left side cover and unplugging it until you find the problem.

Title: Re: Engine runs with key off Post by JWR4 on 03/08/18 at 08:18:28 Per the Ryca docs: Decomp solenoid removed, ignition switch extended, start in neutral relay added. I've rechecked the IG switch extension - no crossed wires there, and the engine runs even with the switch disconnected. All other keyswitch functions are as expected. There are 12 volts to the coil when the engine is running - so there is a path from alternator to coil +. Reviewing the wiring schematic - one path would be through the igniter box.

Title: Re: Engine runs with key off Post by batman on 03/08/18 at 08:48:20 There should be only one path to the coil (pos.),and it should come from the kill switch, and branch off to feed the ignition module, and the starter button, but ONLY one! I don't understand your statement that power also comes from the alternator(it produces AC current) do you mean the rectifier ? It shouldn't be a source either. If it is ,that's why the bike continues to run , you've created a second supply route to the ignition not controlled by the kill switch or the key switch.( the power that goes to the ignition module ,from the kill switch does not ever go to the coil. It simply powers the module who's only connection to the coil is to interrupt flow( in the neg. lead from the coil) to the primary winding,  to create high voltage in the secondary and fire the plug. It may help post a pic. of the schematic you used.

Title: Re: Engine runs with key off Post by JWR4 on 03/08/18 at 11:23:44 I misspoke, I meant the rectifier. I'm using the schematic in the Chilton's manual. Oddly enough, it has a Ryca hard tail on the cover.

Title: Re: Engine runs with key off Post by verslagen1 on 03/08/18 at 12:03:59 Power to the TCI should come from the kill switch and should come through the ig switch. If the TCI is powered all the time, it could result in it being fried.

Title: Re: Engine runs with key off Post by batman on 03/08/18 at 16:33:05 You don't want power coming from the rectifier ,only from the kill switch. the power from the kill switch provides spark when your starting and running the bike ,why would you need it from the rectifier? it would only provide it when the bike is running ,which is why it's still runs when you turn off the key and or the kill switch . disconnect that supply asap before it causes major damage.

Title: Re: Engine runs with key off Post by JWR4 on 03/09/18 at 06:10:52 There are 12 volts to the coil when the engine is running and IG switch is off. I'm going to ohm the switch and see if the problem is there. Lighting is controlled by a second set of contacts and that works just fine.Obviously, there is a path from +12 rectifier to the coil that is not interrupted by the IG switch. With engine off, there is no voltage at coil+. As a test, I unplugged the neutral start relay , which had no effect on the symptoms, same as unplugging the ignition switch.

Title: Re: Engine runs with key off Post by batman on 03/09/18 at 08:44:12 First off ,unplugging components of the system with the bike running can do damage ,thus should be avoided. If your unplugging the key switch power can't be going to the coil in the normal route (key switch /kill switch) so you need to trace the coil positive back until you find the other source, and eliminate it.

Title: Re: Engine runs with key off Post by batman on 03/09/18 at 21:07:32 JWR4 ,when you place the key in the switch and turn it to the park position ,does the tail light work?

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