09 King Quad 750 axi random stalling - Suzuki ATV Forum
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post #1 of 9 Old 11-28-2018, 12:09 PM Thread Starter
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09 King Quad 750 axi random stalling

Hello all any help would greatly be appreciated my atv is stalling mostly when going downhill when I’m off the throttle. It starts fine and idles good. When on the throttle runs good plenty of power. I’ve changed fuel filter six months ago and the stalling went away but now has come back. Runs good in 2wd and regular 4wd. But now when I shift in 4wd differential lock it has a terrible miss. Change spark plug and cleaned gas tank out again. Neither has helped the random stalling. Also adjusted the idle up slightly. No help adjusted it back. I tried sea foam and use Sta bil. I really only use it for hunting and snow plowing my driveway.
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post #2 of 9 Old 11-28-2018, 02:11 PM
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09 King Quad 750 axi random stalling

Did you try adjusting the TPS, (Throttle Positioning Sensor)..? Or at least check to see if itís within spec..?


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2000 Suzuki King Quad 300 4x4
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2300 lbs Superwinch
Kenda Bear Claws (Rear 25X10-12) - (Front 24X9-11)
Differential Lock Mod
14,000 + km/s
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post #3 of 9 Old 11-28-2018, 07:51 PM Thread Starter
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I did check TPS code says it’s in spec. Thanks
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post #4 of 9 Old 12-05-2018, 07:44 PM Thread Starter
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Could it be the fuel pump?
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post #5 of 9 Old 12-11-2018, 10:10 AM
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Check the small ground wire coming off the batt, mine kept stalling and it was a bad connector.
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post #6 of 9 Old 12-26-2018, 06:25 PM Thread Starter
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Changed both ground wire and positive wire. Had it out twice since hasn’t stalled once.
Thanks
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post #7 of 9 Old 01-09-2019, 07:05 PM Thread Starter
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Just a follow up. Had my bike out several times since changing the battery cables. Bike is running great! 👍
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post #8 of 9 Old 01-09-2019, 10:47 PM
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Thanks for the update

2002 King Quad 300
2001 King Quad 300
1997 King Quad 300
1997 quad Runner 250 2x4
2008 Kawasaki 250 Bayou 2x4
2013 TaoTao 110
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post #9 of 9 Old 01-10-2019, 12:35 PM
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It may be possible that its the rev limiter ( grey button) on the handlebar. Many believe these are just for reverse (including my own dealer) and they are not. Maybe its dirty inside. It is simple enough to try!
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