What are known problems with 1998 Harley Davidson EFI on?
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What causes a Harley Davidson engine to misfire?
Click to expand… The front plug could be fuel fouling due to loss of spark enough to burn all the fuel, or could be a mechanical problem I E valve or compression problem, Have you verified compression?
What kind of engine does a Harley Davidson have?
MY 2010 ELEC. GLIDE ULTRA FLHCUI WILL NOT START ON FIRST TURN USUALLY HALF TURN AFTER STOPPING FOR FUEL OR SHORT STOP WITH ENGINE WARM.
What was the problem with my Harley Davidson?
After about 15 mins she showed up and said her bike would not stay running. At each stop, it would stall but would always start after the fact. It died in the driveway. We tried to troubleshoot the problem but have been unsuccessful so far. Checked the fuel pump, getting gas, changed the plugs and checked the wires for leaks, no leaks.
When did fuel injection become standard on Harley Davidson motorcycles?
However, fuel injection was offered as an option for Harley-Davidson’s popular FL-series Touring motorcycles starting with the 1996 model year, but in 2007 became standard equipment on all Twin Cam engine models, which now included all Touring, Dyna and Softail models.
How does a fuel injection system work on a motorcycle?
EFI Basics. In its simplest terms, an electronic fuel injection (EFI) system is a computer controlled fuel delivery system. This electronic control unit (ECU) reads various sensors located on the vehicle and makes the determination of how much fuel to allow the engine to have based on this information.
Click to expand… The front plug could be fuel fouling due to loss of spark enough to burn all the fuel, or could be a mechanical problem I E valve or compression problem, Have you verified compression?
What kind of EFI system does a Harley Davidson use?
EFI systems that sense engine load by the use of the throttle or TPS (throttle position sensor) are referred to as an Alpha-N system. EFI systems that sense engine load by the use of a MAP sensor are referred to as a Speed-Density system. Harley-Davidson has used both types of EFI systems on its vehicles.
EFI systems that sense engine load by the use of the throttle or TPS (throttle position sensor) are referred to as an Alpha-N system. EFI systems that sense engine load by the use of a MAP sensor are referred to as a Speed-Density system. Harley-Davidson has used both types of EFI systems on its vehicles.
What kind of EFI system does a twin cam engine use?
The newer Delphi EFI system used on current Twin Cam engines is a Speed Density system. Speed Density EFI systems determine the engine load based on the intake manifold vacuum.
When did Harley Davidson start shipping Sportys with EFI?
Starting in 2007, all Harley models are shipped with EFI, including Sportys for the first time. The impetus for migration to EFI is to meet the more demanding federal emissions standards intended to take effect in California in 2006 and in 2008 for the other 49 states.
When did the EFI standard take effect in California?
The impetus for migration to EFI is to meet the more demanding federal emissions standards intended to take effect in California in 2006 and in 2008 for the other 49 states. EFI reduces fuel emissions because it meters fuel more accurately than a carburetor.
Why does my Harley Davidson hard start when hot?
Hard starting when HOT, but the engine spins up fine, means either lack of fuel or weak, no spark. If your Dyna is EFI, your fuel pump is losing prime/pressure due to fuel line leak…look here: http://www.hdtimeline.com/diagnosti…lated/979-engine_dies_and_runs_in_spurts.html