troubleshooting no electric start
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Thread: troubleshooting no electric start

  1. #1
    Senior Member f100owner's Avatar
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    troubleshooting no electric start

    One day it worked. Next day it did not.
    That is the story on my electric start.
    No clicks. No previous indications of something being amiss.
    Troubleshooting at this point has been:
    Verified all wires connected in headlight bucket;
    verified no wires disconnected at harness above front sprocket/underneath battery.
    So looking for some advise as to where to go to next.
    CL350K0
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    2018 Ford F150

  2. #2
    Sensei 66Sprint's Avatar
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    Bike in NEUTRAL...Unplug Yellow/red stripe wire at/from solenoid (under the seat on battery box rear)..... Key on, touch the wire (solenoid end) to ground (may need to insert a screw so bare contact exposed, I can't remember if its a male or female end)...IF starter cranks, solenoid is good and problem lies elsewhere (wiring to, or start button, possibly bad handlebar ground)...... or you get a click but starter does not turn, either starter is bad, wire to starter is bad, or internal solenoid switch contacts are bad.......IF nothing happens, bad solenoid....

    Larry....You CAN test with a multimeter....Phone for hints....
    "I have a mind like a steel trap.....Old and rusty, of antiquated design, and hard to get stuff back out of...."
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  3. #3
    Senior Member f100owner's Avatar
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    thanks for the tips, Steve. Will give them a shot while I wait for carbs to clean and replacement front forks to arrive (ka-ching).
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    CL350K0
    2016 Harley Ultra Limited
    1971 Ford F100 Flareside (project)
    2016 Ford Expedition
    2018 Ford F150

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  5. #4
    Senior Member DieselKrampus's Avatar
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    Quote Originally Posted by 66Sprint View Post
    Bike in NEUTRAL...Unplug Yellow/red stripe wire at/from solenoid (under the seat on battery box rear)..... Key on, touch the wire (solenoid end) to ground (may need to insert a screw so bare contact exposed, I can't remember if its a male or female end)...IF starter cranks, solenoid is good and problem lies elsewhere (wiring to, or start button, possibly bad handlebar ground)...... or you get a click but starter does not turn, either starter is bad, wire to starter is bad, or internal solenoid switch contacts are bad.......IF nothing happens, bad solenoid....

    Larry....You CAN test with a multimeter....Phone for hints....
    Steve, I had heard from other sources, that you could test the solenoid and starter by simply bridging the two contacts on top of the solenoid with a screwdriver or wrench... Can you explain if this method is advised or not? I'm thinking maybe not, based on your advice to unplug the one wire and directly ground it, perhaps the method I described could have some negative side effects?
    (Obviously bike in neutral and preferably on the centerstand for all testing)

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  6. #5
    Senior Member f100owner's Avatar
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    Diesel that would mimic how we test solenoids on older fords. The solenoids were pretty bad about going out. Well not just test, but sometimes get home.

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    DieselKrampus likes this.
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    2016 Ford Expedition
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  7. #6
    Sensei 66Sprint's Avatar
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    Diesel,
    Other than producing open sparks right next to a battery that produces Hydrogen gas. no problem....
    You are NOT testing the solenoid, just bypassing it..... It can act as a test for the starter motor however.....
    DieselKrampus likes this.
    "I have a mind like a steel trap.....Old and rusty, of antiquated design, and hard to get stuff back out of...."
    Contact info: E-mail; [email protected] Phone; 540-525-5199

  8. #7
    Senior Member DieselKrampus's Avatar
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    Yikes! Well I guess that's another good reason to run a sealed gel - type battery if I ever have a solenoid go bad in the middle of nowhere . (Never liked battery vent tubes)

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  9. #8
    Senior Member f100owner's Avatar
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    Starter worked when bypassing.
    Now it has started working normally. Guessing bad ground.


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    Last edited by f100owner; 08-31-2019 at 01:20 PM.
    CL350K0
    2016 Harley Ultra Limited
    1971 Ford F100 Flareside (project)
    2016 Ford Expedition
    2018 Ford F150

  10. #9
    Senior Member Alan F.'s Avatar
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    When I was having starter trouble with my CM400C it was very intermittent. It wound up that the starter motor was the failure point even though it would sometimes work.
    I didn't get sparks when bypassing the solenoid.
    Very frustrating. I feel your pain.
    CB250 Nighthawk projects 92,93,92.
    81 CM400C Sold
    93 CB750 Nighthawk Sold
    73 CB750K3 Long term project stuck in the 'parts collecting stage.'
    Fork Swap info: http://sites.google.com/site/alansdocuments/

  11. #10
    Senior Member f100owner's Avatar
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    Was curious as to where the switch get its ground. Not sure, but think only one wire come it.
    A thing going out vs a breakdown in that short wiring environment would be more straightforward to fix.

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    CL350K0
    2016 Harley Ultra Limited
    1971 Ford F100 Flareside (project)
    2016 Ford Expedition
    2018 Ford F150

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