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Help starting 98 ev

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I am having difficulty starting my loving EV+ could use some direction before it accidentally catches fire.The bike displayed every symptom of bad air temperature sensor----so I replaced it! Then it gave symptoms of bad phase sensor control,I tested it as best I could it was bad soooooo I replaced it.Every wire is connected as it should be,charger on battery to stay charged,one+half new plugs replaced,valves ok. I could start bike before + after changing out phase sensor but not for long as I was playing with tps adjustment.Tps is set about 150mv,to continue I must have engine running.Engine will run without any tps wires connected,soooooo that should not be a problem??? I went the Vaseline route +applied liberally to every thing including myself---------never ever use that baby fragrance stuff------all I'm gonna say is that awful smell doesn't play well with bourbon----flywheel sensor was cleaned,the only thing I can think of left to do is KICK the tires,but I cannot raise my leg that high(it's on a lift)

                                                                                                        Thank you

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I'm relatively new at this FI tuneup, only done my Griso(very different), CalVin (very similar?), but I'll throw a couple of thoughts your way.

It sounds like you had a variety of symptoms, replaced a variety of parts and it still doesn't want to run, are you sure it's not something completely unrelated ie plugged fuel filter, line, fuel pump etc or an electrical connection short or bad relay, side stand, neutral ignition switch etc.

I thought the 150 mv TPS reading was for the baseline setting with everything disconnected and the throttle plates closed, then once reconnected TPS adjusted to 486/487? mv for idle, I remember adjusting the idle, TB balancing and going back and forth adjusting the TPS a few times to get it running sweet.

I don't understand your comment about the bike being able to run with the TPS disconnected, I would have assumed that if the TPS was disconnected nothing would run.

Fresh eyes in the morning may solve it for you, sometimes works for me,lol.

Good luck

Kelly

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Thank you for replying to my post Mr.80cx-----fuel filter was replaced,fuel pump works fine,relays+fuses ok, side stand disconnected ,strong spark to plugs. Tps setup 150mv/375mv all connected not running (remember this is a 98 model/different from 99+years). The rpm sensor on flywheel was cleaned (one chunk of debris ) but not checked for mvolts . I'm going to check out the ecu as best I can,the po had issues with this bike before he dumped it on me so I feel it necessary to dig deeper.

I would like to know more about a product from Australia called    My ECU  has anyone tried one ?

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You might try connecting using Guzzidiag (or even TuneECU) to see if the previous owner bricked the ECU.

Dont screw around, use these cables: https://www.lonelec.co.uk/Motorbike-OBD-Diagnostic-Cables/Guzzidiag-Melcodiag-Ducatidiag-Hardware

You should be able to see what ECU it is, what map it's running etc. If it cant connect, or show some kind of error, you may need a new ECU.

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A 98 EV can give fault codes, get the factory FI supplement manual for the codes ( on thisoldtractor.com ) there a red LED under the left side cover that blinks the codes, start or attempt to start it then turn off key but not all the way off to start the code flasher. The codes don’t cover everything but the crank, cam and temp sensors are included.

what does it do? Start and idle or not start at all and what does it do if not starting?

there is a fuel trim dial on the computer box, covered with a plug, if that were messed with it can cause a lot of bad behavior of the motor  if you decide to tweak it only go half turn at a time and give it a 10 minute ride to let cpu adjust itself to the change.

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I think the myecu is really expensive?.  And there's a learning curve but if your into that probably a good solution.. I wonder if there's a chance of borrowing another cpu to test before going that route. There's gotta be a few 98ev's somewhere around your location? Have you asked this question over at Wildguzzi?

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I did manage to start engine tho it will be a process to get it wright.The little red light does not work so I just wing it!The only electric tool I can use is a multimeter. Balancing the tb's is difficult with a manometer,regrettably I resort to the Twin Max till balance is somewhere near then I can use the manometer to get it right. Phase sensor was the main problem---then ecu connection+many many other problems that made this repair a night mare,all in all if I SQUINT I think I see light at tunnels end---thank all of you for your support.

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