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2015 phantom 500 miles ran fin about 3 weeks ago now won't…

Customer Question
2015 phantom 500 miles...

2015 phantom 500 miles ran fin about 3 weeks ago now won't start checked plugs and has gas and spark sounds like it's backfiring

Mechanic's Assistant: How many miles are on the car? When did you last check the plugs?

500 and I just replaced today

Mechanic's Assistant: What is the model of your '15 Honda?

Phantom 750

Mechanic's Assistant: Are you fixing your Phantom yourself? What have you tried so far?

Checked for spark getting seems like getting gas.

Submitted: 9 months ago.Category: Car
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Customer reply replied 9 months ago
When I take off the air filter seems like it's backfiring but it's electronic ignition?
Answered in 18 hours by:
9/17/2017
Auto Mechanic: Pete, Technician replied 9 months ago
Pete
Pete, Technician
Category: Car
Satisfied Customers: 32,622
Experience: 17 years automotive training and experience.
Verified

My name is ***** ***** I am a professional here at Just Answer. I noticed that your question had not received a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.

Check the fuel for any water contamination or debris in it.I have seen water get into the fuel as well as debris and can cause the issue you see here as well as the back firing.If this is or was already checked let me know.

If more help is needed, use the reply tab to continue our conversation. If no further assistance is needed, kindly rate my service,your 5 star rating is appreciated ( should be a link to click on here or above).You can rate at any time and we can continue to work on your question as this will not close out your question.Keep in mind in some cases it can be difficult to fully diagnose or help repair your vehicle without seeing it and I work on delivering the best possible answer from what I see to work with.

Thanks Pete

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Customer reply replied 9 months ago
No water the bike is practically new. I sprayed starter in carb still no attemp at firing bu I checked spark it's there
Customer reply replied 9 months ago
They charged me for this so don't close as it's not resolved
Auto Mechanic: Pete, Technician replied 9 months ago

Are the plugs wet with fuel at all when checked now?

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Customer reply replied 9 months ago
they were I replaced them as well
Auto Mechanic: Pete, Technician replied 9 months ago

O.k.,do you know if they are still getting soaked with fuel or are they dry now?

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Customer reply replied 9 months ago
Let me check
Auto Mechanic: Pete, Technician replied 9 months ago

No problem let me know when your ready.

Thanks Pete

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Customer reply replied 9 months ago
still wet. And sprayed some carb cleaner in before putting plug back in still no fire
Customer reply replied 9 months ago
Getting spark and tuns over fine sound like a little backfire but not sure
Auto Mechanic: Pete, Technician replied 9 months ago

Are all plugs wet or just some of them?

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Customer reply replied 9 months ago
they are
Auto Mechanic: Pete, Technician replied 9 months ago

O.k.,the engine is being over fueled then.This is why it is back firing and not starting.

This can be due to the computer holding open the injectors with the computer needing replaced.It can also be due to shorted wiring leading to or at the injectors needing repaired.It can also be due to a fault with a faulty throttle position sensor needing replaced as it can send a false signal indicating throttle is applied which will cause this fault here.

All of these will need to be checked into to locate which is the cause and then repaired from there.This may require some special test equipment and tools to perform some of the testing and checks and may be best done by a repair facility with the proper diagrams of this model here.You might also check to see if your under factory warranty still as if so then this may be able to be diagnosed and repaired at no charge to you.

If more help is needed, use the reply tab to continue our conversation. If no further assistance is needed, kindly rate my service,your 5 star rating is appreciated ( should be a link to click on here or above).You can rate at any time and we can continue to work on your question as this will not close out your question.Keep in mind in some cases it can be difficult to fully diagnose or help repair your vehicle without seeing it and I work on delivering the best possible answer from what I see to work with.

Thanks Pete

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