Honda Rancher 350 Carburetor Diagram, Hose Routing and Fitment Guide
This guide covers the carburetor identification and connection checks used when servicing select Honda Rancher 350 TRX350 ATVs. The complete 1PZ replacement carburetor is listed for applicable 2000–2006 models, while the matching 22-piece rebuild kit is listed only for 2004–2006 models.
Safety: Work with the engine cool in a ventilated area. Close the fuel valve, disconnect the battery negative terminal and spark-plug lead as directed by the service manual, and keep fuel away from sparks and hot surfaces.
Rancher 350 carburetor connection map
| Connection | Where it leads | What to record before removal |
|---|---|---|
| Fuel inlet | Fuel valve/tank supply | Hose diameter, clamp and barb direction |
| Vent hoses | Open routing specified by Honda | Length, routing and retaining clips; do not cap or interchange |
| Bowl drain | Downward drain hose | Safe routing away from exhaust and ignition sources |
| Throttle connection | Throttle cable/linkage | Cable bracket, adjuster position and free movement |
| Choke/enricher | Choke cable or electrical connection, depending on configuration | Connector or cable style and orientation |
| Engine side | Intake boot/manifold | Clamp position, boot condition and sealing surface |
| Airbox side | Air-cleaner boot | Boot seating, clamp and cracks |
Model and year fitment
For Rancher 350 applications, verify the full suffix—not just “TRX350.” Common listed suffixes include TRX350FE, TRX350FM, TRX350TE and TRX350TM, plus applicable ES configurations.
| 1PZ option | Listed Rancher 350 coverage | Key check |
|---|---|---|
| Complete replacement carburetor | Applicable 2000–2006 models | Match suffix, original configuration and OEM/reference number |
| 22-piece rebuild kit | Applicable 2004–2006 FE/FM/TE/TM models | Compare every gasket, jet, needle, O-ring and float-valve part |
Reference numbers for the complete carburetor
16100-HN5-M41, 16100-HA0-305, 16100-HM3-L01, 16100-HM5-L01, 16100-HN0-A02 and 16100-HN0-672. A reference match should be used together with year, model suffix, photos and physical connections.
Before-removal checklist
- Photograph both sides, the top and all hose routes.
- Label the fuel, vent and drain hoses individually.
- Record throttle-cable adjuster position and free play.
- Photograph choke/enricher and electrical connections.
- Inspect intake and airbox boots for cracks that can imitate carburetor symptoms.
Common problems after service
| Symptom | First checks |
|---|---|
| Fuel leak | Hose clamp, drain screw, bowl seal, float needle and debris; do not run until corrected |
| High or hanging idle | Throttle cable routing/free play, slide return, intake boot and vacuum leak |
| Won’t start | Fuel supply, choke/enricher connection, electrical connectors, intake sealing and spark-plug lead |
| Runs poorly after rebuild | Incorrect jet location, blocked passage, damaged O-ring, wrong component or model-specific adjustment |
Parts for this job
- Complete carburetor for Honda Rancher 350 TRX350 2000–2006
- Carburetor rebuild kit for Honda Rancher 350 TRX350 2004–2006
- Browse all 1PZ carburetors
Use Honda model-specific service information for float height, jet specifications, cable adjustment and final settings. If fitment is uncertain, send 1PZ Support the year, full model suffix, OEM/reference number and clear photos of the original carburetor.