Symptoms
Hesitation, stumbling, rough idle or stalling at low rpm on a truck with an original carburetor.
The fix, step by step
- Read the carburetor number stamped on the body first: Cruiser Corps lists more than a dozen Keyster kits for FJ40, FJ45 and FJ55 carburetors from 1966 to 1984, matched by carb number and date range.
- Strip, clean and rebuild with the correct kit, set the float level, and check vacuum lines and choke operation while it's off.
Tools & part numbers
- Screwdrivers
- carb cleaner
- correct Keyster rebuild kit (by carb number, e.g. 21100-60280 for 9/1973–9/1975)
Where to buy the parts
Keyster carburetor rebuild kits by carb number, FJ40/45/55 1966–84Cruiser Corps ↗Amazon ↗
Carburetor rebuild kit, FJ40/45/55/60 1975–87Cruiser Corps ↗Amazon ↗
Carburetor repair kits by year (1978 FJ40 4.2L)RockAuto ↗Amazon ↗
Hunting a used or discontinued part? Search eBay Motors for Toyota Land Cruiser FJ40 parts →
Rated for a competent home mechanic with a decent tool kit. Confirm torque figures, fluids and procedures against the factory service manual for your VIN, support the truck on stands rather than a jack, and work at your own risk (disclaimer). Some parts links are affiliate links, which pay us a small commission at no cost to you.