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Do you have a question about the 2002 TRX450FE Fourtrax Foreman FE and is the answer not in the manual?

Questions and answers

Ben
April 17, 2025

So, my 2002 Honda Forman 450 S is still not running right after a new ignition control module, coil, and carburetor.

1 comments:
Mr. Anderson
May 9, 2025

If your 2002 Honda TRX450FE Fourtrax Foreman FE is still not running properly after replacing the ignition control module, coil, and carburetor, possible causes include:

1. Incorrect installation or connection: Ensure all electrical connectors are properly seated and components are grounded correctly. A loose or misconnected wire can cause misfires or no spark.

2. Timing issues: Check the ignition timing. If the timing is off due to a misaligned timing chain or faulty timing sensor, the engine may not run properly.

3. Fuel delivery problems: Even with a new carburetor, fuel may not reach the engine properly if the fuel line is clogged, the fuel filter is dirty, or the fuel petcock is restricted.

4. Vacuum leaks: Air leaks at the intake manifold or carburetor mounting can cause a lean mixture, leading to poor performance or stalling.

5. Weak or no spark: Despite replacing the ignition coil and control module, test the spark plug and plug wire. A faulty spark plug or wire can still prevent proper combustion.

6. Compression issues: Perform a compression test. Worn piston rings, valves, or head gasket can cause low compression, leading to poor engine performance.

7. Battery or charging issues: Low voltage can affect ignition performance. Ensure the battery is fully charged and the charging system is working.

8. Grounding issues: A poor engine or frame ground can affect ignition and electrical performance.

Double-check all work done during part replacements and verify all systems are functioning correctly.

This answer is automatically generated

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