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Showing content with the highest reputation on 10/03/2022 in all areas

  1. Just to recap on my original post with more detail , before i attempted to start the bike I fitted a NEW ODYSSEY PC545 Battery , NEW PIERBURG - 7.21287.53.0 fuel pump , NEW set of Bosch relays , checked the BCM air filter that didn't have a spec of dust on it , emptied the tank and filled with new fuel , checked the plugs were sparking , checked that there was fuel pressure at the injectors which there was then i attempted to start the bike, cranks over perfect but won't start as there is no fuel getting injected. MartyNZ - Been there myself with the old 6V bikes forever cleaning the terminals but the V11 although not the best connectors are fairly tight and well sealed but not to say i haven't had the odd wiring issue in the past as with all Italian bikes, also the bike has always been kept in underground parking so not a hint of humidity or oxidation to be found on it , what i've disconnected so far has all been really clean connections . As there are quite a few leads connected to the battery i thought i'd start at the source to check for faults so i removed the 3 negative leads and reconnected one at a time and found with one of the leads disconnected i had a constant 12V at the injectors with ignition on, when i connect the third wire it drops again to 4.5V. The wire in question is a bundle of 3 one of which goes to the ECU relay then the other two not sure as yet (maybe ECU also) but need to do more tests to verify.
    2 points
  2. It is helpful to distinguish, when a V11 "won't start", whether it *clicks/whirs, cranks, or that there is > nothing < at all. Both @LaGrasta and @milo's V11 crank, but don't fire (if I understand correctly). A V11 with a faulty Run Switch or bad Clutch Switch/bullet connectors doesn't do anything on start attempt? Also, just because the battery has been removed for storage = nothing electrical can go wrong? I would venture that connections can continue to corrode and degrade while rodents can change your wiring without asking. Rude little shits.
    2 points
  3. Open circuit voltage should always be system voltage. So if you measure the ground for the injectors (and whatever else) it should show battery voltage when disconnected but nearly zero when attached properly. That is, testing from ground wire to ground. Whatever voltage you see between the ground wire and ground is resistance, and to be eradicated as a connection fault.
    1 point
  4. The three negative ring terminals on the battery are: 1) the largest/ main ground to the back of the gearbox (be absolutely certain this connection to the gearbox is cleaned bare and sealed!), 2) the start/charge/lights harness, and 3) the (completely separate) Fuel/Ignition harness through fuses 1 & 2 --> Relays 4 & 5.
    1 point
  5. I'm no expert, but that kind of voltage drop smacks of "dead short." Could there be something awry with the four hidden spade connectors beneath fuses one and two (injection/ ECU)?
    1 point
  6. Sauce . For those that have posted , #1 sauce is just like women , what years me up , would turn your nose up . e.g. Bette Midler over Linda Carter . #2 do not add sauce . You eat it like it is served . #3 I have eaten the BEST BBQ in the back yard w/people of color . These folks are on a mission ! All day to make it , no problem .
    1 point
  7. My Rossi wouldn’t start when I first got it and gave it a wash. Ended up being the Stop/run switch wouldn’t make the start circuit up in the “run” position. I ended up buying a gently used switch from Curtis Harper. Installed & no more issues since.
    1 point
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