Choke System Adjustment & Repair
Instant Starts.
Every Time.
Stop grinding your starter motor at the dock. We expertly diagnose, clean, and calibrate marine electric and thermal choke systems to ensure your carburetor delivers the exact rich fuel mixture needed for a flawless cold start.
Electric & Thermal Actuators
We test 12V choke solenoids and bi-metal thermal springs. A failed spring won't pull the choke plate shut when cold, while a burnt solenoid will leave you permanently running rich and blowing black smoke.
Mechanical Linkage Polish
Salt air corrodes the delicate brass and steel linkages on marine carburetors. We disassemble, ultrasonically clean, and polish the linkage arms so the choke plate snaps shut and opens smoothly without binding.
Fast-Idle Cam Synchronization
A cold engine needs more than just a rich mixture; it needs higher RPMs to stay alive. We calibrate the fast-idle cam so the engine revs correctly when cold and seamlessly drops to base idle as the choke opens.
The Calibration Process.
Data-driven adjustments.
Cold State Diagnostic
We must start on a completely cold engine. We verify the choke plate closure angle and test the electrical circuit supplying 12V to the heating element or solenoid.
Teardown & De-Carbonizing
The choke housing and fast-idle linkages are removed. We clean away years of carbon buildup, salt crust, and old, sticky lubricants that cause mechanical binding.
Index Calibration
We reassemble the unit and adjust the choke cap against the index marks. Using a vacuum gauge and feeler gauges, we set the precise "choke pull-off" clearance mandated by the OEM.
Thermal Verification
The engine is run up to full operating temperature. We verify that the choke plate opens fully to 90 degrees, ensuring the engine breathes properly and doesn't run excessively rich.
System Components.
Restoring the perfect mixture.
Technical Specs.
Calibration standards.
Common Questions
Why do I have to pump the throttle so much to start?
If your choke plate isn't closing fully, the engine can't pull a vacuum to draw fuel from the idle circuits. You are manually forcing raw fuel into the manifold with the accelerator pump just to get it to fire.
Why does my engine blow black smoke when it's warmed up?
This usually means the choke is stuck closed. It starves the engine of air and runs an extremely rich fuel mixture, fouling your spark plugs and wasting expensive marine fuel.
| Manufacturer | Breeze Marine Boat Service |
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