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Thread: 75/5 starter problem

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  1. #1
    rssllkaplan
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    75/5 starter problem

    When I insert ignition key, 3 lights in headlight go on. Plenty of battery. When I push starter button, click and all the lights go out. No cranking or anything. I must remove and reinsert key and lights go back on. I can kick start the bike OK.

    Is there an easy way to check whether problem is in the starter button before I go to the starter & solenoid, as that is a bigger job.

    thanx

  2. #2
    Administrator 20774's Avatar
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    You may have a starter relay issue...it's under the tank....I doubt the problem is the switch, but could be. Look through this website for a very thorough guide on troubleshooting:

    http://bmwmotorcycletech.info/startingprobs.htm

    It might be overwhelming, but there's good info on that site.

    Be sure and read the section on the /5 "cricket" problem...this might affect you.
    Kurt -- Forum Administrator ---> Resources and Links Thread <---
    '78 R100/7 & '69 R69S & '52 R25/2
    mine-ineye-deatheah-pielayah-jooa-kalayus. oolah-minane-hay-meeriah-kal-oyus-algay-a-thaykin', buddy!

  3. #3
    Registered User lmo1131's Avatar
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    When I insert ignition key, 3 lights in headlight go on. Plenty of battery. When I push starter button, click and all the lights go out.
    When you wrote "click" and the lights go out, do you actually hear a sound; a "light" tinny click (starter relay), or a heavier and louder click (starter solenoid)?

    Just because the instrument lights go on, and you can kick start the machine, does not necessarily mean you have "plenty of battery". Loading the battery with the starter may be enough to draw down the lights if the battery is failing, and you might hear the relay/starter click. How old is it?

    The easiest test would be to "jump start" the bike by hooking up to the battery. Be careful, and make sure to apply the ( - ) to the frame or engine/transmission NOT the negative battery anode. If the starter spins, it's more than likely that your battery is shot. It it just sits there.. . .. back to square one.
    "It is what you discover, after you know it all, that counts." _ John Wooden

    Lew Morris
    1973 R75/5 - original owner

  4. #4
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    A lesson learned

    If you haven't done so in a while I would make sure that all of your battery cables, ground straps and starter wires are in good shape and have tight & clean connections.

    I have in my stable 9 airheads and all of them had a loose starter cable at the starter when I got them at various times and conditions. I also chased and defeted a K-bike gremlin that was found to be a bad ground issue.

    The ground attachment to the speedometer anchor bolt is a weak spot.

    Also don't rely on your kick starter to much as it is necessarily designed for constant use.

  5. #5
    Registered User lmo1131's Avatar
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    Also don't rely on your kick starter to much as it is necessarily designed for constant use.
    (???) Perhaps you meant; Also don't rely on your kick starter to much as it is not necessarily designed for constant use. (???)
    "It is what you discover, after you know it all, that counts." _ John Wooden

    Lew Morris
    1973 R75/5 - original owner

  6. #6
    James.A
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    Quote Originally Posted by 69ZEFF65 View Post
    If you haven't done so in a while I would make sure that all of your battery cables, ground straps and starter wires are in good shape and have tight & clean connections.
    My first thought was that a poor connection has done this to me in the past. Start with the easy stuff first.

  7. #7
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    Thank you for fixing my Boo Boo

    Thank you Lew, I often surprise myself when I fail to proof read but your correction is correct I did mean "not" for constant use.

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