07 King Quad 700 sputter and stall
Jan 22, 2019 | 09:19 PM
#1
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Weekend Warrior
Joined: Sep 2018
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07 King Quad 700 sputter and stall
So this sputter and hard start has been an issue for me now for a while. Originally I cleaned the injector, set tps, checked all connectors, did the voltage reg mod, and it helped a bit. So I decided to change the fuel pump and filter, I bought a cheap aftermarket one. Pressure was 65 psi static, with just the key on and 90 psi at idle. So I modified the regulator o ring and got it now to 44 psi with key on, but it’s 60psi at idle. It will now start every time but it takes some feathering of the throttle, and when your driving, it sputters bad at low throttle and will stall. I really need some help, I researched the crap out of this, oh and it has a new plug. Only 4000km onthr bike too.
Jan 23, 2019 | 03:31 AM
#2
Elite Pro Rider
Joined: Oct 2013
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From: Lancaster England
There is something seriously wrong with a pump producing that sort of pressure, what was the original pump giving? Are you getting the C--- fuel settings correct on idle? I did have a 700KQ that wouldn't run right from new, finally swapped all the EFI bits from another bike, one at a time, until I found it ran right with the other bike's throttle body. So fitted a new TPS and that seemed to cure the problem.
Jan 23, 2019 | 05:33 AM
#3
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Weekend Warrior
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What do you mean correct fuel C—? Also is setting the iac after adjusting tps a must? Also is it possible that 60 psi idling is the actual pressure and when I just key the pump on, it doesn’t have enough time from the relay to get to 60?
Jan 23, 2019 | 10:23 AM
#4
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Weekend Warrior
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Ok so another opdate, i tried driving it today and it runs horrible, but i was backing it into my garage and i reved it a few times to keep it running and it puffed out a large cloud of black smoke, enough to fill my garage. So im guessing its still insanely rich and ill have to adjust my fuel pressure down more.
Jan 24, 2019 | 04:09 AM
#5
Elite Pro Rider
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From: Lancaster England
"What do you mean correct fuel C—?"
Sorry a few years since I did this, 500KQs don't have an adjustable TPS, and everyone buys 500KQs round here now, with fuel at £5 a gallon. I meant -COO settings on the speedo. See this video https://www.google.com/search?q=Sett...TF-8#kpvalbx=1 if you don't know how to do it.
Sorry a few years since I did this, 500KQs don't have an adjustable TPS, and everyone buys 500KQs round here now, with fuel at £5 a gallon. I meant -COO settings on the speedo. See this video https://www.google.com/search?q=Sett...TF-8#kpvalbx=1 if you don't know how to do it.
Dec 8, 2024 | 12:34 PM
#7
Weekend Warrior
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Have you figured out what was the problem my dad's king quad is doing the same thing?
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Dec 8, 2024 | 02:36 PM
#8
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Weekend Warrior
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the Aftermarket pump with modded oring would not work correctly.
Dec 8, 2024 | 02:40 PM
#9
Weekend Warrior
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