1. Some members were not receiving emails sent from XJbikes.com. For example: "Forgot your password?" function to reset your password would not send email to some members. I believe this has been resolved now. Please use "Contact Us" form (see page footer link) if you still have email issues. SnoSheriff

    Hello Guest. You have limited privileges and you can't "SEARCH" the forums. Please "Log In" or "Sign Up" for additional functionality. Click HERE to proceed.

starting a 750 with a drill battery

Discussion in 'XJ Technical Chat' started by paul.hardy, Apr 16, 2014.

  1. paul.hardy

    paul.hardy Member

    Messages:
    79
    Likes Received:
    2
    Trophy Points:
    6
    Location:
    Tasmaina - Australia
    The other day when I finished work and went to start the old XJ the battery was totally flat, left the ignition on, anyway I tried roll starting it to no avail.So I pushed her into the workshop at work and pulled out the battery to take home and charge and bring back in the morning. I was about to ring my wife to come get me when I had this stupid idea about trying a Makita 12 volt drill battery that we had at work, you know the small orange ones that push up into the drill handle. Anyway I held the battery wires on the appropriate terminals and hit the started and bugger me it started straight up.
    Put the battery back in and rode home.
     
    paul.hardy, Apr 16, 2014
    #1
  2. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

    Messages:
    14,841
    Likes Received:
    5,157
    Trophy Points:
    113
    Location:
    near utica, new york
    I've started mine with a little 9v battery, but the bike has to be warmed up good already. Otherwise, there's not enough ooomph........

    dave
     
    hogfiddles, Apr 16, 2014
    #2
  3. paul.hardy

    paul.hardy Member

    Messages:
    79
    Likes Received:
    2
    Trophy Points:
    6
    Location:
    Tasmaina - Australia
    All we need now is for some one to post in they started their bike with two mails and a lemon Ha ha
     
    paul.hardy, Apr 16, 2014
    #3
  4. paul.hardy

    paul.hardy Member

    Messages:
    79
    Likes Received:
    2
    Trophy Points:
    6
    Location:
    Tasmaina - Australia
    I mean nails !!!
     
    paul.hardy, Apr 16, 2014
    #4
  5. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

    Messages:
    14,841
    Likes Received:
    5,157
    Trophy Points:
    113
    Location:
    near utica, new york
    the starter doesn't take much to spin. If the engine is cold it takes a lot more juice to throw a spark. But if the engine is warm, all you need is enough to spin the starter, and the electrical system will throw the spark. I couldn't do that with my 650, but I could my 700. The 650 would spin but not fire. the 700 did, but only if it was warmed up good first.

    dave
     
    hogfiddles, Apr 16, 2014
    #5
  6. paul.hardy

    paul.hardy Member

    Messages:
    79
    Likes Received:
    2
    Trophy Points:
    6
    Location:
    Tasmaina - Australia
    My old bike has always started really easily even when dead cold. That's why I found it strange it would not roll start but I think with a dead flat battery the alternator will not generate enough power for a spark I think the bike has to be revving over a certain speed before it the alternator works ?? So it needs some juice in the battery even to roll start does this sound right?
     
    paul.hardy, Apr 16, 2014
    #6
  7. fordguy101

    fordguy101 Member

    Messages:
    44
    Likes Received:
    0
    Trophy Points:
    6
    Location:
    CT
    Very odd, My battery was totally dead after this weekend, 2 volts under load on my tester lol. I still poped it on a little hill at my house started right up. I got a new batt. the next day but I really am shocked that it would not pop start for you? Then again myn is a 550!
     
    fordguy101, Apr 16, 2014
    #7
  8. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

    Messages:
    14,841
    Likes Received:
    5,157
    Trophy Points:
    113
    Location:
    near utica, new york
    Ford... I never had trouble pop starting either..... Maybe you just didn't have enough speed up...... A guess--_
     
    hogfiddles, Apr 16, 2014
    #8
  9. tskaz

    tskaz Active Member

    Messages:
    1,878
    Likes Received:
    17
    Trophy Points:
    38
    Location:
    Saint Louis, Michigan
    It shouldn't take much speed to bump start it. I bump my 650R by walking briskly.
     
    tskaz, Apr 16, 2014
    #9
  10. Polock

    Polock Well-Known Member

    Messages:
    9,751
    Likes Received:
    2,097
    Trophy Points:
    113
    Location:
    Beaver Falls, PA
    Polock, Apr 16, 2014
    #10
  11. adrian1

    adrian1 Active Member

    Messages:
    1,818
    Likes Received:
    6
    Trophy Points:
    38
    Location:
    Australia
    I am amazed somebody could start a bike with a 9 volt battery!!
     
    adrian1, Apr 17, 2014
    #11

Share This Page