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Fuel Injected Harley Idles High


Jun 8, 2022

What causes a fuel injected motorcycle to idle high?

A motorcycle idles high when it is getting too much of an air and fuel mixture in a low speed or neutral position. This is usually caused by the idle screw on the carburetor being out of adjustment, an out of place throttle handle screw, a bad carburetor throttle spring, or a sticky throttle or throttle cable. via

Can you adjust the idle on a fuel injected motorcycle?

On some fuel-injected motorcycles, there is a knob sticking out the side of your bike near the engine compartment. You can just turn this knob clockwise or counterclockwise to adjust the idle speed. via

What RPM should a Harley idle at?

To ensure proper charging at idle, maintain an idle speed of approximately 950-1050 RPM. Insufficient idle speed may drain the battery in excessive idle situations, resulting in insufficient voltage to the ECM, ignition coil and fuel pump (which can result in a variety of operating problems). via

How do I reset my Harley idle?

Reset the TPS. Turn ignition switch on for 10 seconds, then off for 10 seconds (Don't start engine). Repeat a total of 4 times. DO NOT TOUCH throttle while doing it. via

Why does my motorcycle rev up on its own?

Extremely lean motors can also stall out completely when given some light throttle. Another sign of lean running is the “hunting idle” where the motorcycle revs up randomly, changes RPMs, or takes forever to come down to idle. via

How do I reduce the idle RPM on my bike? (video)


How do you adjust the idle on a Harley Davidson? (video)


What RPM should a motorcycle idle at?

What RPM Should a Motorcycle Idle At? Single-cylinder motorcycle engines should idle at around 1350 RPMs whereas two-cylinder motorcycle engines should idle at around 1000 RPMs. When the motorcycle is warming up higher idle RPMs can be expected from the engine. via

Where is the idle adjustment screw on a motorcycle? (video)


How do I know if my Harley is running rich?

Registered. Running to lean, the bike will run hot, spit out the air cleaner and so on. Running rich, the bike will break up down low if the pilot jet is rich, will smell, and might get some black smoke out the exhaust, to rich up top the bike will really lack top end. via

How should a Harley sound at idle?

"A well-tuned Harley engine, sitting at idle, has a distinct cadence, and it's an uneven, syncopated rhythm," says Steve Piehl, communications director for the Milwaukee-based company. "And it sounds like, `potato, potato, potato. '" via

What RPM should a 103 Harley idle at?

1050 is the right idle speed for a fuel injected Harley. Going lower will cause lack of oil lubrication because of low oil pressure. via

How do you test a Harley Davidson TPS? (video)


What is limp mode Harley?

Limp Mode happens when there is a correlation error between the twist grip sensor, electronic control module, and throttle control actuator. It limits the RPMS and throttle response of the bike. Basically, it lets you limp the bike home or to a shop to get it repaired. via

What is Eitms on a Harley?

For riders that frequently find themselves in riding conditions that require extensive idling of their motorcycle, selected Harleys® are equipped with an Engine Idle Temperature Management System (EITMS). via

How do I fix my running rich motorcycle?

  • Adjust the air to fuel ratio.
  • Check if the needle is sticking in the carburetor.
  • Check for stuck open floats.
  • Clean your air filter.
  • Check for stuck open butterfly valves.
  • Change your O2 sensors if your motorcycle has them.
  • via

    How do you adjust the throttle position sensor on a motorcycle? (video)


    Why does my motorcycle sputter at high rpm?

    There are several reasons why a motorcycle sputters. The most common reasons are carburetor issues such as a vacuum leak, fuel leak, or tuning issues. Other culprits could include corroded or cracked spark plugs or spark plug wires, a faulty ignition coil, a clogged air filter, or engine timing issues. via

    How do I reset my idle speed?

    You can reset the idle air control (IAC) valve by turning the car on, putting the car into park, pressing the brake down, then pushing the gas pedal down, counting down about 5 seconds, turning the car off, waiting 10 seconds and start the car again, checking to see if the car is idling properly. via

    How do you adjust the air fuel mixture on a Harley Davidson? (video)


    How do you clean a IAC valve on a Harley Davidson? (video)


    Does high RPM hurt engine?

    The absolute most stress on an engine occurs at high RPMs. The forces acting upon the rotating assembly are exponentially increased with RPM. That also increases the magnification of any oiling inconsistencies (as small as they may be nowadays), which can be deadly to engines. via

    Is it better to lower idle?

    Reasonable low idle time.

    It is recommended to keep the low idle speed for 3~5 minutes after the high load is turned off. Through the above method, we can effectively use the low idle speed to protect the engine well, and prevent the engine from being used due to unreasonable low idle speed. via

    How should a motorcycle idle? (video)


    Where is the idle screw located?

    The idle speed screw (arrow 1) is located on the primary linkage. The idle metering adjustment screws (arrow 2) are located on the primary metering block on most Holley carburetors. A typical starting location for these idle mixture screws is between 1 and 1 ½ turns out from fully seated. via

    How do you tell if a motorcycle is running lean or rich?

    If you take a look at the spark plugs, you'll notice an obvious difference. We noted that a motorcycle running lean will have a clean spark plug. A motorcycle running rich will have a much dirtier and soot-looking covered tip. via

    How do you tell if an engine is running lean or rich?

    Looking at the stochiometric ratio again, if there is too much air in the cylinder, meaning the parts of air compared to the parts of fuel is higher, your engine is running lean. If your engine has a ratio where there is more than 1-part fuel per 14.7 parts of air, your engine is running rich. via

    Is backfiring lean or rich?

    Lean Air/Fuel Mixture

    Not only can a rich air/fuel ratio cause a backfire, a mixture that doesn't have enough gasoline can cause a backfire, too. A "lean" mixture is one that doesn't have enough fuel, and too much air. via

    Why do Harleys sound so deep?

    “The 45° design of the engine thus creates a plug firing sequencing as such: The first cylinder fires, the second (rear) cylinder fires 315° later, then there is a 405° gap until the first cylinder fires again, giving the engine its unique sound.” via

    Why do Harleys sound like they are misfiring?

    What you are actually hearing is the sound of the compressed gases in the cylinder escaping when the exhaust valve opens. Each pop is the sound of the exhaust valve opening one time, and it happens on every second revolution of the crankshaft. via

    Why do Harley-Davidson's vibrate so much?

    Do Harleys vibrate a lot? Harley-Davidson motorcycles, especially older models, vibrate because of their engine design. Pistons in Big Twin engines share a single crankpin causing the pistons to move in uneven intervals. via

    How do you adjust a throttle position sensor? (video)


    What does a TPS do on a motorcycle?

    The Throttle Position Sensor is the part of the vehicle Fuel Management System that helps us to ensure that the engine is getting the right amount of air-fuel mixture at every moment. The TPS provides direct digital signals to the fuel injection system. via

    How do you fix a throttle position sensor? (video)


    How do I fix my Harley limp mode?

    limp mode kicks in (shuts off rear cylinder)... That's happened 3 times so far,not all the same day.No engine light or limp mode light. The short term remedy is to simply turn egnition off and re-start and everythings back to normal. via

    How do I get my motorcycle out of limp mode?

    Most of the limp mode episodes so far have been related to throttle position, throttle body sensors, etc.. And most will resolve, at least temporarily, by shutting the ignition completely off, then restarting. Check the connection of the throttle wire at the right hand grip, it can come loose, esp if you have risers. via

    How do I reset my Harley Davidson? (video)


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