To: gts-1000 Subject: Mysteries of the GTS revealed! (to me anyways) Date: Sat, 08 Mar 97 07:59:52 -0500 From: Robert Wilson -- [ From: Robert Wilson * EMC.Ver #2.5.02 ] -- While going through the GTS Service Manual, in preparation to making a wiring harness to run, my new Air Horn, Handle Grip Heaters, integrate my existing two Widder heated clothing connections & any future electrical accessories, I've discovered a few things. Any of you with the list long enough will recognize a couple of discussions we've had: 1. What happened, where is, the "theft protection" features that were advertized with the GTS. Well it is there, quite simple & sneaky in fact. See page II-7 .auxillary functions under the EFI section; "Functions of Components" in the Canadian/US/AUS/NZ service manual. In a brief moment of lucidity, I examined the GTS wiring diagram & the Ignition Lock circuit (L-2 und under the ELECtrical section). Wo!, sneaky, here's what happens AS the key is being turned from the Off to On position. a) BRown/bLue and Red wires connected. b) BRown/Black wire shorts to BRown/bLue and Red wires momentarily. c) BRown/Blue and Red and bLue wires connected while cycle is in on positon, and running. The correct sequence, not just shorting some wires & cranking the starter, is required to input to the EFI computer to allow the Fuel Injection system to run. 2. The GTS has a fall detection sensor that will turn off the EFI when the bike leans over more than 45 degrees (EFI II-8). It says it will not shut off during cornering, so there must be some smarts in the EFI computer to make sure the bike is not moving. 3. The "Rev-Limiter" at Redline is accomplished by turning off the EFI when the bike goes above redline (EFI II-25, Over Revolutions fuel cut-off....I think a certain un-named middle eastern dictator had this operation:)). It restarts as soon as revs drop below the redline (I'll tell you this is very disconcerting the first time it happens when you don't realize you have a rev-limiter). 4. The nominal output of the alternator is 12VDC/34amps@3000rpm (SPEC 2-17) (if P still equals EI, that puts it at 408 watts@3000rpm. Someone else had previously shown the alternator output, but since I'm on the subject of loading up electrical accessories, I thought I'd repeat it. 5. This is just a thought, but, people with the engine dieing when warming up when the clutch is pulled in and the revs drop quickly might glean some information reading through the manual starting at II-22 where it shows the Cooling Water Temperature Sensors & the Intake Air Temperature Sensors are very proactive in EFI calculations during this period (after-start and warm- up enrichment). Just a thought since I'm spouting off all sorts of stuff. This stuff is all in the manual, but if you're like me, it's hard to find. I hope you-all find this interesting, I did. Robert -- Robert Wilson neelin@escape.ca