Bike breaks up at 2500-3500 rpms
Is it good above this rpm range or not.
Check for trouble codes.
2001 TOURING Diagnostic Trouble Codes (DTC) and Fault Conditions
DTC NO. FAULT CONDITION
12 MAP sensor
16 Battery voltage
24 Front ignition coil
25 Rear ignition coil
41 Crank sensor
44 Bank angle sensor (within TSM/TSSM)
detects possible theft attempt
52 RAM failure
53 ROM failure
54 EPROM failure
55 Ignition module failure
Battery condition and connections may cause misfires. Inspect for corrosion at battery terminals, main circuit breakers, ignition fuse terminals (GY and R/BK), right handlebar connector  and coil connector.
Fuel system problems may cause misfires.
Spark Plugs OFTEN cause misfires, even plugs that look good. If carbon tracking is evident, replace them.
Spark Plug Wires may cause misfires - Front/rear 20 in. 5,000-11,666 ohms. Wires must be clean and tight. Excessive wire resistance or faulty connections can cause coil damage. If carbon tracking is evident, replace the ignition coil and inspect the spark plug wires. Spark plug wire connectors can corrode and should always be coated with dielectric grease to prevent this. If there is any corrosion replace the corroded parts.
Coils may break down and cause misfires but not usually at a given rpm range only. Coil testing can be performed by substituting a known good coil for one causing the no spark condition. The coil
does not require full installation to be functional. Verify a possibly
faulty coil by performing a resistance test. Test the primary coil resistance on your coil. Disconnect all the wires going to the small terminals (primary) on your coil. Using a good ohmmeter on Rx1 setting, test the resistance between the two small terminals. You should read somewhere between 2 and 3 ohms. If you read more, the coil is bad. Before you do this test short out both leads of the ohmmeter and if the reading is not zero you will need to write down or otherwise remember the number and subtract it from the reading you get from the primary circuit test or you will have an incorrect resistance reading for the primary wires because you will also be reading the ohmmeter internal resistance and/or the wire and lead resistance added to the primary wiring resistance.
You can also test the coil by leaving the "hot" wire on the coil and replacing the other side (ground side) with a short piece of wire. Turn the ignition on and temporarily ground the short piece of wire you put on the "out" (ground) side. When you take the wire away from the ground, (which will collapse the primary current into the secondary) you should see a spark at the plugs if it is a wasted spark system or at one of the plugs if it is not a wasted spark system. If you have current to both sides of the primary of a two part coil both plugs should get a spark whether wasted spark system or not as you are energizing both sides of the primary and collapsing both into both secondaries at the same time when you remove the ground wire from the cylinder head ground.
Take the plugs out of the cylinder heads and lay them back on it so that they have a good ground. Then watch the spark plugs closely when you turn the ignition switch off. You should see a single spark on each plug. This tell you that the coil is getting fire and that it is good and your problem lies elsewhere. You get a spark on both plugs because it is a wasted spark system that fires both plugs simultaneously, one on power stroke and the other on exhaust stroke. This will not work on 2006 and later EFI as there will be no spark with both plugs removed.
Manifold leak Spray water around induction module seals with
engine idling. If RPM changes, change seals.
Improper fuel system pressure may contribute to one of the following conditions: 1.Cranks, but won't run. 2. Cuts out (may feel like ignition problem). 3. Hesitation, loss of power or poor fuel economy. Fuel pressure must be a steady running pressure of 55 to 62 psi (380 to 425 kPa).
Plugged, dirty air cleaner may cause rich misfire.
Plugged/dirty fuel filter may cause lean misfire.
Jun 03, 2012 |
2001 Harley Davidson FLHRCI Road King...