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Electric Yamaha Electric Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles



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Old 04-20-2014, 05:25 AM   #1
kogieblack
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Default G16E jerking or "jumping"

As I step on the accelerator, the cart starts by jumping or jerking. Is it a controller, pedal switch or other issues? After "jumping" it moves and runs smoothly.
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Old 04-20-2014, 02:02 PM   #2
cgtech
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Default Re: G16E jerking or "jumping"

Do you have stock controller? Alltrax controller?
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Old 04-20-2014, 05:42 PM   #3
kogieblack
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Default Re: G16E jerking or "jumping"

Stock controller but repaired.
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Old 04-20-2014, 06:21 PM   #4
cgtech
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Default Re: G16E jerking or "jumping"

Repaired by who? Please not C.T.S.
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Old 04-21-2014, 07:31 PM   #5
kogieblack
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Default Re: G16E jerking or "jumping"

Repaired by a friend-mechanic. Reading some materials here, it appears that there could be a problem with the throttle sensor (JN4-85888-00-02). I am not familiar with electric golf carts. Is the throttle sensor different from the accelerator speed switch or just another name for it?
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Old 04-22-2014, 03:57 PM   #6
cgtech
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Default Re: G16E jerking or "jumping"

The pedal has 2 electronics attached to it. An on/off, and a position sensor (how far "on"). I rarely see the position sensor go bad on a Yamaha. There is a provision to adjust it in the pedal area, i would spray a little paint on the threaded rod, so if adjusting it goes wrong, you know where it originally was. If you pull up the rubber floor mat, there is a generous amount of room under the access cover.
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Old 04-22-2014, 06:30 PM   #7
kogieblack
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Default Re: G16E jerking or "jumping"

Thanks for the reply. Will do that sometime today. Actually, the "jerk' was not as "violent" after I tightened some bolt/nuts particularly the one attached to the controller. (Remember, the controller was repaired and some part configurations were changed, i.e. the connection nut).
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Old 06-27-2014, 08:12 PM   #8
steele
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Default Re: G16E jerking or "jumping"

Similar problem Check for private message. full throttle and off it goes .turn key off and back on and away you go.
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