Carburetor replacement For Pulsar Lawn Mower PTG12205 PTG12205B 150cc engine

What It Is

This is an aftermarket carburetor replacement for Pulsar lawn mowers with a 150cc engine, specifically the PTG12205 and PTG12205B models. It mixes fuel and air for combustion and is a direct swap for a worn or clogged factory carb.

Fitment & Compatibility

• Confirmed fit: Pulsar PTG12205, PTG12205B (check your model tag under the seat or on the frame).
• Engine size: 150cc only—verify your engine displacement (usually stamped on the valve cover or dipstick area).
• OEM vs aftermarket: This is a non-OEM part. Gaskets and mounting holes should match, but carburetor jetting may differ slightly from the original.
• Measurements: Inlet fuel line size is typically 1/4-inch; throttle cable and choke linkage are standard for this engine family. Measure your old carb’s mounting stud spacing (usually 2.5 inches center-to-center) to confirm.
• What to check before buying:
  • Deck size is irrelevant—only engine model matters.
  • If your mower has a different Pulsar model (e.g., PTG12206), verify engine specs—do not assume fit.

Key Things to Know

• Quality: Aftermarket carburetors often work fine but may need minor adjustment (idle speed screw) out of the box. Check for debris in the bowl before installing.
• Installation difficulty: Moderate. You’ll need a socket set, pliers, and carb cleaner. Expect 30–60 minutes. Watch for small gaskets and springs that can fall off.
• Common gotchas:
  • The fuel shut-off valve (if present) may need to be replaced if old.
  • Old gasket residue must be cleaned completely to avoid air leaks.
  • Aftermarket carbs sometimes have tight float bowls—check for leaks after first run.
• Warranty: No mention of warranty—buy with a credit card that offers purchase protection if possible.

Should You Buy It

If your Pulsar PTG12205 or PTG12205B has hard starting, surging, or won’t run despite a clean fuel system, this is a budget-friendly fix. It’s not OEM-quality but works for most homeowners. Skip it if you need exact factory calibration or if your mower has a different engine model.