E-Z-GO Refresher 1200 Carburetor Jet Size

On FJ400D-equipped carbureted E-Z-GO Refresher 1200 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.

E-Z-GO Carburetor Jet Guide

Refresher 1200 • Main & pilot jet sizes

Later FJ400D applications: #106; earlier Refresher 1200 years differMain jet

Later FJ400D applications: #52; earlier years differPilot jet

Earlier utility gasoline engine; 401 cc Kawasaki FJ400D on later documented yearsEngine

Model-year-specific float-bowl carburetorCarburetor

Refresher 1200 carburetor jet sizes at a glance

Main jet

Later FJ400D applications: #106; earlier Refresher 1200 years differ

Pilot jet

Later FJ400D applications: #52; earlier years differ

Altitude

Use the exact model-year service-parts manual for altitude correction

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.

1. IdentifyEngine, carburetor and current jet stamp

2. VerifyCompare with the matching factory parts data

3. SelectUse the correct model-year and altitude jet

4. TestCheck warm idle, takeoff and full-load response

How to choose the correct E-Z-GO Refresher 1200 jet

Confirm that this E-Z-GO Refresher 1200 matches the carbureted gasoline version described here.

Engine/application: Earlier utility gasoline engine; 401 cc Kawasaki FJ400D on later documented years. Carburetor: Model-year-specific float-bowl carburetor.

Remove the bowl and jets only after cleaning the carburetor exterior. Read the stamped jet number; do not estimate jet size from hole diameter or appearance.

Main jet: Later FJ400D applications: #106; earlier Refresher 1200 years differ. Altitude guidance: Use the exact model-year service-parts manual for altitude correction.

Pilot jet: Later FJ400D applications: #52; earlier years differ. If it only runs with choke or will not idle, clean the pilot circuit and check for an intake leak before changing the jet size.

After fitting the correct jets, verify warm idle, clean takeoff and full-load response. If the problem remains, check fuel level, float, needle valve, choke and fuel-pump delivery before changing jet size again.

Refresher 1200 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.

Refresher 1200 jet specifications

Applies to: Carbureted gasoline version.

Engine: Earlier utility gasoline engine; 401 cc Kawasaki FJ400D on later documented years.

Carburetor: Model-year-specific float-bowl carburetor.

Main jet: Later FJ400D applications: #106; earlier Refresher 1200 years differ.

Pilot jet: Later FJ400D applications: #52; earlier years differ.

Altitude: Use the exact model-year service-parts manual for altitude correction.

Model-specific note

Refresher 1200 spans multiple carbureted generations; #106/#52 should only be used on the documented FJ400D-equipped version.

E-Z-GO Refresher 1200 carburetor jet FAQ

What is the E-Z-GO Refresher 1200 main jet size?

Later FJ400D applications: #106; earlier Refresher 1200 years differ. Refresher 1200 spans multiple carbureted generations; #106/#52 should only be used on the documented FJ400D-equipped version.

What is the E-Z-GO Refresher 1200 pilot jet size?

Later FJ400D applications: #52; earlier years differ.

Does altitude change the E-Z-GO Refresher 1200 main jet?

Use the exact model-year service-parts manual for altitude correction.

Can I install a larger jet in an E-Z-GO Refresher 1200?

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 Refresher 1200 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 Refresher 1200?

The pilot circuit controls idle and very low-throttle fueling. The main jet becomes dominant as airflow, throttle opening and engine load increase.

Verify the jet before ordering

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 Refresher 1200. For manufacturer documentation, visit the official manufacturer website.