Club Car Spark Plug Gap: Specs and Quick Reference
Direct Answer
For most gasoline-powered Club Car DS and Precedent models, the recommended spark plug gap is 0.028 to 0.030 inches (0.71 to 0.76 mm). The exact specification depends on the engine generation and model year. Many single-cylinder Kawasaki FE290 and FE350 engines specify 0.028 to 0.030 inch, while some older flathead engines from the early 1990s may use a slightly larger setting such as 0.032 inch. Always verify against the engine model rather than assuming one gap fits every Club Car.
Club Car Model and Year Variations
A 1991 Club Car with the original Kawasaki flathead or early overhead-valve engine can vary from later production. Some 1991 gasoline models call for a gap of 0.028 to 0.030 inch, but documentation for certain flathead variants lists 0.032 inch. If the engine has been replaced or rebuilt, the current engine's specification takes priority over the cart's model year.
For the Club Car DS with a Kawasaki FE290 or FE350 engine, the common specification is 0.028 to 0.030 inch. The same range generally applies to gasoline Club Car Precedent models using the FE350 or the later Subaru EX40 engine. Diesel and electric Precedent models do not use spark plugs.
Common Club Car Engine Plug Gaps
Engine / Model | Typical Gap (inches) | Typical Gap (mm) | Notes; Kawasaki FE290 (DS, Precedent) | 0.028–0.030 | 0.71–0.76 | Most common gas engine; Kawasaki FE350 (DS, Precedent) | 0.028–0.030 | 0.71–0.76 | Confirm with engine tag; Subaru EX40 (later Precedent) | 0.028–0.030 | 0.71–0.76 | Used on newer gas carts; 1991 flathead variants | 0.028–0.032 | 0.71–0.81 | Check original engine manual
Practical Installation Notes
Use a wire-style or feeler gauge rather than a round coin-style gap tool. A flat feeler gauge gives a more consistent reading on small single-cylinder engines. If the plug has been dropped, inspect the center electrode and ground strap for damage before setting the gap.
Do not force the ground strap by prying against the center electrode. Adjust the ground strap only. A wider gap can cause misfire under load; a narrower gap can lead to a weak spark and poor combustion. If the engine is lifted, modified, or running an aftermarket ignition, the stock gap may still apply in most cases.
Checking the Engine Before Setting the Gap
Look for the engine identification tag on the fan shroud or crankcase. The tag usually shows the engine model, such as FE290D or FE350D. That model information matters more than the cart's body style. If the tag is unreadable, compare the cylinder head and air filter location with known Kawasaki or Subaru engine images for the DS and Precedent platforms.
What the Gap Means
The spark plug gap is the distance between the center electrode and the ground strap. This distance affects the voltage required to fire the plug and the shape of the spark kernel. On small gas engines, a few thousandths of an inch can change cold starting, idle stability, and full-throttle performance.
Uncertainty and Gaps in Available Information
No single universal specification covers all Club Car gas engines from every model year. Published materials sometimes list only the engine family without identifying a specific 1991 flathead setting. Where documentation conflicts, the specified range may be broader than ideal. In those cases, the safest supported range is 0.028 to 0.030 inch, with 0.032 inch treated as an exception for certain older engines rather than a default.
Next Steps
Identify the engine model before buying plugs or setting the gap. A new plug from the manufacturer may arrive pre-gapped, but it should still be checked with a feeler gauge. When in doubt, confirm the engine tag and use 0.028 to 0.030 inch for Kawasaki FE-series and Subaru EX-series gas engines.