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post #1 of 14 (permalink) Old 08-25-2018, 02:51 PM Thread Starter
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Engine hesitation/bucking feeling

Have 2012 road glide and have an issue when just starting out to ride motorcycle.

Motorcycle has hesitation/Bucking feeling until it is warmed up and I have been riding for about 10 miles.

I have replaced the following: Spark plugs, wires, air cleaner, cleaned out fuel tank, fuel check valve assembly, engine temp sensor, fresh gas (3 tanks).

Motorcycle has throttle response, starts fine, great idle.

I am at a loss here. Would like to be able to fix myself and not have to take it to the dealer $$$$.

Any help would be appreciated.

T.Davis
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post #2 of 14 (permalink) Old 08-25-2018, 02:55 PM
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Running premium fuel? 87 octane will do that to mine.


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post #3 of 14 (permalink) Old 08-25-2018, 02:59 PM Thread Starter
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I only run 91 octane.
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post #4 of 14 (permalink) Old 08-25-2018, 03:46 PM
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You might look for intake gasket leak and the other thing is to clean the IAC just inside the throttle body looking up. Use some Berryman carburetor cleaner with the straw on it. That should help

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post #5 of 14 (permalink) Old 08-25-2018, 04:08 PM
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You might look for intake gasket leak and the other thing is to clean the IAC just inside the throttle body looking up. Use some Berryman carburetor cleaner with the straw on it. That should help
His bike is a 2012 and has TBW thus there is no IAC.

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post #6 of 14 (permalink) Old 08-25-2018, 04:51 PM
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First thing pull the codes.


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post #7 of 14 (permalink) Old 08-27-2018, 03:57 PM
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His bike is a 2012 and has TBW thus there is no IAC.
Good point, didn't notice the year! Good catch Ken!
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post #8 of 14 (permalink) Old 08-30-2018, 08:27 PM
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Quote:
Originally Posted by 5150roadglide View Post
Have 2012 road glide and have an issue when just starting out to ride motorcycle.



Motorcycle has hesitation/Bucking feeling until it is warmed up and I have been riding for about 10 miles.



I have replaced the following: Spark plugs, wires, air cleaner, cleaned out fuel tank, fuel check valve assembly, engine temp sensor, fresh gas (3 tanks).



Motorcycle has throttle response, starts fine, great idle.



I am at a loss here. Would like to be able to fix myself and not have to take it to the dealer $$$$.



Any help would be appreciated.



T.Davis


Maybe check the wire connectors to the throttle body? Could be a cracked or broken one in the pins to the throttle body. Can be difficult to tell and not real common but not uncommon.

Just a thought!


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post #9 of 14 (permalink) Old 08-30-2018, 09:13 PM
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Maybe check the wire connectors to the throttle body? Could be a cracked or broken one in the pins to the throttle body. Can be difficult to tell and not real common but not uncommon.

Just a thought!


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Another thing to check is (not sure what the part name is) but the mass air flow sensor or air temp sensor at the throttle body.


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post #10 of 14 (permalink) Old 09-05-2018, 10:13 PM
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I would check for an intake seal leak. Not uncommon and they are just rubber gaskets. If you’ve messed with the throttlebody any time recently, loosened the bolts holding the throttlebody, it could have shifted.

Do you have any codes shown in a WOW test? If so; what are they?

Also, I’ve seen a rash here lately of bad O2 sensors. Just a thought but they will typically throw a code.

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