On FJ400D-equipped carbureted E-Z-GO Clays Car models, the documented factory carburetor uses a #106 main jet and #52 pilot jet. Confirm the engine before ordering, because earlier carbureted versions can use different jetting and later EFI versions have no carburetor jets.
Clays Car • Main & pilot jet sizes
Clays Car carburetor jet sizes at a glance
Main jet
Earlier EH35C: #82; later FJ400D: #106
Pilot jet
Earlier EH35C: #42; later FJ400D: #52
Altitude
Use the altitude jet chart for the exact engine and carburetor generation
Before ordering
Identify the engine and carburetor, then read the number stamped on the existing brass jet.
Lean symptoms
Needing choke, surging or load bog can also come from a clogged passage, weak fuel supply or intake leak.
Rich symptoms
Black smoke or plug fouling can also come from a stuck choke, high float level or leaking needle valve.
How to choose the correct E-Z-GO Clays Car jet
Clays Car jetting symptoms
Needs choke to run
Clean the pilot and main circuits and check fuel supply and an intake leak before fitting a larger jet.
Bogs under load
A restricted main jet can cause this, but so can weak pump flow, low bowl fuel level or a blocked filter.
Black smoke / fouled plug
Check choke position, float level and needle sealing before assuming the main jet is too large.
Runs well only at low speed
Main-jet or main-nozzle restriction becomes more likely once the pilot circuit is known to be clear.
Poor idle only
The pilot circuit matters much more than the main jet at idle.
High-altitude operation
Use the model-specific elevation chart where available; do not guess how many jet sizes to reduce.
Clays Car jet specifications
Applies to: Carbureted gasoline version.
Engine: 350 cc EH35C on earlier documented applications; 401 cc Kawasaki FJ400D on later carbureted years
Carburetor: Engine-generation-specific float-bowl carburetor
Main jet: Earlier EH35C: #82; later FJ400D: #106
Pilot jet: Earlier EH35C: #42; later FJ400D: #52
Altitude: Use the altitude jet chart for the exact engine and carburetor generation
Model-specific note
Identify EH35C versus FJ400D before ordering; the jet numbers are not interchangeable.
E-Z-GO Clays Car carburetor jet FAQ
What is the E-Z-GO Clays Car main jet size?
#82 on the documented 350 cc EH35C Clays Car/ST Sport application. The documented ST Sport 2+2/Clays Car service-parts manual lists #82 main and #42 pilot for its 350 cc EH35C carburetor.
What is the E-Z-GO Clays Car pilot jet size?
#42 on the documented 350 cc EH35C Clays Car/ST Sport application.
Does altitude change the E-Z-GO Clays Car main jet?
Check the exact E-Z-GO parts manual for altitude-specific main-jet alternatives.
Can I install a larger jet in an E-Z-GO Clays Car?
Only after confirming the engine, carburetor, altitude and cause of the lean symptom. A clogged passage, intake leak or weak fuel supply should not be corrected with an oversized jet.
How do I identify the correct E-Z-GO Clays Car carburetor jet?
Use the stamped jet number together with the engine code, carburetor ID and model year. Cross-check those identifiers against the matching factory parts or service information.
What is the difference between the main and pilot jet on an E-Z-GO Clays Car?
The pilot circuit controls idle and very low-throttle fueling. The main jet becomes dominant as airflow, throttle opening and engine load increase.
Jet sizes can change with engine, carburetor revision, model year and altitude. This page applies to the carbureted gasoline version. Do not drill jets or assume a jet from another model is equivalent. Confirm the engine, carburetor ID and existing jet markings for your exact E-Z-GO Clays Car. For manufacturer documentation, visit the official manufacturer website.