The Africa Twin XRV650 & XRV750 thread

Discussion in 'Land of the Rising Sun: ADV Bikes from Japan' started by iswoolley, Aug 23, 2004.

  1. lemovice

    lemovice Been here awhile

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    entre les deux c'est le camp militaire de carpiane,c'est peut-etre ça.

    est-ce-que tu vas à l'enduro du touquet !
  2. ZORBA

    ZORBA Adventurer

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    Need your help guys...
    My bike wouldnt start when hot, changed the fuel pump with a facet, still wouldnt start when hot and now it doesnt start at all, even when cold.
    Any help?
  3. Africa_Twin

    Africa_Twin Africa Twiner

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    Hoo, so much to look for... I suppose the battery and starter are good, and that you have gas in the tank so:

    Did you connect the Facet correctly (i.e., the Facet outlet to the carbs and the inlet from the tank? It wouldn´t be the 1st time people revert this...
    Also, is there a spark at the plugs? Check this by removing one plug on each cylinder and holding the plug tip real close to the engine head cover. Then crank the engine with the starter button and see if a spark jumps. If it does, then the coils are good...
    Check you didn't turn the fuel cock off... I'm just stating the obvious here...
  4. ZORBA

    ZORBA Adventurer

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    The bike worked with the facet properly, the tank is full and I guess the reg-rec is fine.
    I think I'll check the plugs first.
    Could it be a faulty CDI?
  5. Africa_Twin

    Africa_Twin Africa Twiner

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    It could, but the only thing I can think of that would kill your CDI (apart, from maybe using the wrong kind of plugs for a long time and at high speed and a faulty REG/REC giving off high charging voltage) would be a lighting bolt caused by a short circuit somewhere within the CDI circuit wires.
    The AT electrical system is protected by fuses, so that is unlikely, unless someone has been tampering with the fuses and changing them for higher Amps... So check the fuses for correct rating and for continuity with a multimeter... wiggle the fuse legs from side to side to make sure there are no micro-cracks in the fuse legs. I've seen that happening with a fuse for the tripmeter... If the fuses are OK, then look at the spark plugs. If you do have a spark jumping from at least one plug from each cylinder, then the coils are good and so is the CDI (at least the side of the CDI that governs the ignition coils).

    But the easy way to check for a faulty CDI is to borrow a good-known CDI from a friend's bike, a bike that you know is running OK and installing it on your bike and see if it now runs... Basically, before going nuts, try the obvious and easy things first... pump correctly hooked (don't forget to check the fuel pump relay located to the right side of the REG/REC - this relay is also commanded by the CDI), fuses OK, spark at the plugs... assuming as I said the starter motor runs... if it does, then the clutch and the side stand switches are OK and you don't need to check those...
  6. ZORBA

    ZORBA Adventurer

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    Im thinking that it could be the sparkplugs, but what are the chances that all four gave up at the same time?
  7. Africa_Twin

    Africa_Twin Africa Twiner

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    The chances are they being wrong plugs for the bike type, the two ignitions coils going dead at the same time or the CDI being faulty...

    But why do you think the spark plugs are the culprits? What makes you think that?

    You said you think the REG/REC is fine... Why you think that? Did you measure your charging voltage at 5.000 rpm with a hot engine and the low beams turned on? Did you measure something between 14-15 V at the battery posts?
    By any chance, did you install a new REG/REC recently? If yes, why did you install it? Could it be that the previous REG/REC might have given a "hot spark of high charging voltage" to your bike's electrical system that could have affected your CDI? Did you have any troubles with your battery?
    Battery liquid boiling, the battery spitting acid out, or its walls swelling, a strong smell of battery acid... did you notice any of this?

    Did the bike simply not start anymore, all of a sudden or did you notice some of the above symptoms?
  8. ZORBA

    ZORBA Adventurer

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    What happened at first was that the bike would start normally, I would ride it a bit, switch off and when try to start, it would not start again for 15-20 minutes. Then, it would start normally. No backfire or any strange throttle response.
    So, I changed the fuel pump for the facet one, went for a ride and the same symptoms happened. Then after another small ride, the bike refused to start completely.
    The starter cranks the bike properly and I also used another battery to test.
    The regulator was replaced a few years ago with a proven non OEM one, but I have a spare so, will change it over and see how it goes. I havent measured the charging voltage when the bike was running.
  9. Africa_Twin

    Africa_Twin Africa Twiner

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    OK.
    I was only trying to ascertain whether your REG/REG might have recently "killed" your CDI... that seems not to be the case.
    Ruling out any electrical issues, you are left with the fuel system.
    Do you feel a strong smell of gasoline when cranking the bike? Or is there no fuel smell? To rule the facet out of the question simply plug the fuel filter outlet (the part that connects to the Facet inlet tube) directly to the tube that goes to the carbs (facet outlet) with the tank full. While the fuel level inside the tank is above the carbs level, you can run the bike with no fuel pump, because the fuel will reach the carbs by the gravity force alone.
    Also, when the Facet is run dry, you can clearly and loudly hear it working... If you hear it chattering under these conditions (disconnected from the fuel line but still connected to the electrical system, when cranking the engine with the starter motor), then the fuel pump relay and the CDI part that governs this relay are also OK.
    By the way, when was the last time you replaced your fuel filter? I've seen bikes having starting/running problems due to very clogged fuel filters... You might as well rule that out by replacing the fuel filter...
  10. Johnnyktm

    Johnnyktm Been here awhile

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    Great thread!! :thumb

    Some years ago I found this bike near a beach in Spain, parked in the sidewalk, and I took some pictures of it, as I had only seen it in pictures and magazines :eek1

    [​IMG]

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    [​IMG]

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    I hope that you enjoy the pics as well :D

    By the way: I wish that Honda build this motorcycle again... What a great bike!!!!
  11. Ladder106

    Ladder106 It's a short cut, really

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    Step 1.....

    Remove one spark plug, ground to engine push starter button.

    You are randomly messing around with stuff with no logical sequence.

    Make certain you have spark first.

    ...............................

    My guess, based on the information provided so far is that the trigger coils for the ignition system located down by the stator on the left are bad.

    Some Hondas, particularly the Goldwings, have had problems starting when hot. This persists until the bike won't start at all. It's related to the igntion sensors. For some reason they begin to fail when hot first...then fail completely.

    This may not be the problem...it's only an educated guess.


    But, please, just pull a plug and make certain you have spark. Otherwise, you are just chasing your tail.
  12. 2old2Bbold

    2old2Bbold was 2bold2getold

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    One way you might want to check it is to....Pull a spark plug wire off and install another spark plug on the disconected plug wire. Hold the spark plug against a good ground/earth, turn on the ingition key and push the starter button. Watch for spark. If you have spark, loosen one of the carburator drain screws and see if there is any fuel in the carbs.
  13. farcall

    farcall Bike-a-holic

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    Bump... one more buyer needed now :thumb

  14. alexem

    alexem Adventurer

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    this is total porn!!!!!!!!!!!!

    I think, this is one of the very rare paris-dakar bikes for private-riders...........
  15. Squily

    Squily Squily

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    farcall

    You know if they fit RD07?
  16. mhouck

    mhouck Been here awhile

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    Great motivation for my RD03 restoration/Marathon Replica.....these classic Marathons are so cool....
  17. kitped

    kitped Adventurer

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    Yes, all Africa Twin fork caps a the same.
  18. farcall

    farcall Bike-a-holic

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    What Kitped said.

    C'mon man, risk-it for a biscuit, place your order with Kitped. ... :D

    Why am I so keen for these?? I'm gunna lose 20mm clearance under my front fairing when I fit my LED's soon and I have future plans for an 18" rear wheel conversion. These fork extensions will kill two birds with one stone. Errr... figuratively speaking that is... no dead birds here :lol3 :lol3
  19. teddy750

    teddy750 Adventurer

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    Hello everybody recently i am haviving a problem with my trip master. it doesn't hold any readings. No km, no time. It's like when you take of the battery. Since i dont't have any idea about mechanics (up until now i had my mechanic solving all my problems but he has retired now) i wonder if any of you out there had the same trouble and found out what it was. any ideasare welcome.Thank in advance.
  20. RiderMakis

    RiderMakis Adventurer

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    Check your PM :deal:deal