Name: Manual for TRX350TM RANCHER - Troubleshooting and error codes + PDF Download
Brand: HONDA

Manual for TRX350TM RANCHER - Troubleshooting and error codes + PDF Download

Brand: HONDA

Category: Offroad Vehicle

Manual Type:

Language:

Uploaded: April 8, 2025, 1:55 p.m.

Manual Publish Date: 2002-05-01

Warranty Summary

No warranty information is available in this service manual.

None

Troubleshooting and error codes

Problem	Possible cause
ENGINE DOES NOT START OR IS HARD TO START	Clogged fuel line and strainer Clogged fuel valve Clogged fuel tank breather tube Flooded carburetor Throttle valve open Dirty air clearner Improperly adjusted pilot screw Starting enrichment (SE) valve stuck open or damaged Faulty spark plug Fouled spark plug Loose or disconnected ignition system wires Broken or shorted spark plug wire Faulty ignition coil Faulty ignition pulse generator Faulty engine stop switch Faulty ignition switch Faulty ignition control module (ICM) Improper choke operation Incorrectly adjusted carburetor Leaking carburetor insulator Improper ignition timing (Faulty ICM or ignition pulse generator) Contaminated fuel Valve clearance too small Valve stuck open Worn cylinder and piston rings Damaged cylinder head gasket Seized valve Improper valve timing
ENGINE LACKS POWER	Brake dragging Worn or damaged axle or wheel bearing Faulty tire valve Punctured tire Clutch slipping Worn clutch discs/plates Warped clutch discs/plates Weak clutch spring Additive in engine oil Fuel/air mixture too rich or learn Clogged air cleaner Restricted fuel flow Clogged muffler Restricted fuel tank breather tube Faulty ignition control module (ICM) Faulty ignition pulse generator Valve clearance too small Valve stuck open Worn cylinder and piston rings Damaged cylinder head gasket Seized valve Improper valve timing Carburetor not serviced frequently enough Plug not serviced frequently enough Incorrect spark plug used Oil level too high Oil level too low Contaminated oil Clogged oil passage Clogged oil orifice Worn piston and cylinder Use of poor quality fuel Excessive carbon build-up in combustion chamber Ignition timing too advance (Faulty ICM) Lean fuel mixture
POOR PERFORMANCE AT LOW AND IDLE SPEED	See section 5 Loose carburetor insulator bands Damaged carburetor insulator Faulty carburetor insulator O-ring Faulty spark plug Fouled spark plug Loose or disconnected ignition system wires Broken or shorted spark plug wire Faulty ignition coil Faulty ignition pulse generator Faulty engine stop switch Faulty ignition switch Faulty ignition control module (ICM) Faulty ignition control module (ICM) Faulty ignition pulse generator
POOR PERFORMANCE AT HIGH SPEED	Restricted fuel tube Restricted fuel tank breather tube Faulty fuel valve Clogged fuel strainer Carburetor not serviced frequently enough Camshaft not installed properly Faulty ignition control module (ICM) Faulty ignition pulse generator Faulty valve spring
POOR HANDLING	Steering shaft nut or holder too tight Damaged steering shaft bushing Damaged steering shaft bearing Excessive wheel bearing play Bent rim Improperly installed wheel hub Excessively worn swingarm pivot bearings Bent frame Tire air pressure incorrect Faulty shock absorber Bent tie-rod Incorrect tie-rod adjustment Bent swingarm Bent frame Improper wheel alignment

Troubleshooting and error codes

Problem	Possible cause
ENGINE DOES NOT START OR IS HARD TO START	Clogged fuel line and strainer Clogged fuel valve Clogged fuel tank breather tube Flooded carburetor Throttle valve open Dirty air clearner Improperly adjusted pilot screw Starting enrichment (SE) valve stuck open or damaged Faulty spark plug Fouled spark plug Loose or disconnected ignition system wires Broken or shorted spark plug wire Faulty ignition coil Faulty ignition pulse generator Faulty engine stop switch Faulty ignition switch Faulty ignition control module (ICM) Improper choke operation Incorrectly adjusted carburetor Leaking carburetor insulator Improper ignition timing (Faulty ICM or ignition pulse generator) Contaminated fuel Valve clearance too small Valve stuck open Worn cylinder and piston rings Damaged cylinder head gasket Seized valve Improper valve timing
ENGINE LACKS POWER	Brake dragging Worn or damaged axle or wheel bearing Faulty tire valve Punctured tire Clutch slipping Worn clutch discs/plates Warped clutch discs/plates Weak clutch spring Additive in engine oil Fuel/air mixture too rich or learn Clogged air cleaner Restricted fuel flow Clogged muffler Restricted fuel tank breather tube Faulty ignition control module (ICM) Faulty ignition pulse generator Valve clearance too small Valve stuck open Worn cylinder and piston rings Damaged cylinder head gasket Seized valve Improper valve timing Carburetor not serviced frequently enough Plug not serviced frequently enough Incorrect spark plug used Oil level too high Oil level too low Contaminated oil Clogged oil passage Clogged oil orifice Worn piston and cylinder Use of poor quality fuel Excessive carbon build-up in combustion chamber Ignition timing too advance (Faulty ICM) Lean fuel mixture
POOR PERFORMANCE AT LOW AND IDLE SPEED	See section 5 Loose carburetor insulator bands Damaged carburetor insulator Faulty carburetor insulator O-ring Faulty spark plug Fouled spark plug Loose or disconnected ignition system wires Broken or shorted spark plug wire Faulty ignition coil Faulty ignition pulse generator Faulty engine stop switch Faulty ignition switch Faulty ignition control module (ICM) Faulty ignition control module (ICM) Faulty ignition pulse generator
POOR PERFORMANCE AT HIGH SPEED	Restricted fuel tube Restricted fuel tank breather tube Faulty fuel valve Clogged fuel strainer Carburetor not serviced frequently enough Camshaft not installed properly Faulty ignition control module (ICM) Faulty ignition pulse generator Faulty valve spring
POOR HANDLING	Steering shaft nut or holder too tight Damaged steering shaft bushing Damaged steering shaft bearing Excessive wheel bearing play Bent rim Improperly installed wheel hub Excessively worn swingarm pivot bearings Bent frame Tire air pressure incorrect Faulty shock absorber Bent tie-rod Incorrect tie-rod adjustment Bent swingarm Bent frame Improper wheel alignment