Craftsman Craftsman B210 27cc 2-Cycle Gas Leaf Blower (210 MPH) MECH-WONT-START Error Fix: Blower Engine Will Not Start

Error code MECH-WONT-START on the Craftsman Craftsman B210 27cc 2-Cycle Gas Leaf Blower (210 MPH) means: Blower Engine Will Not Start. The gas leaf blower engine does not start. The Craftsman B210 uses a 27cc 2-cycle engine requiring fuel/oil mix. Starting procedure is the same as other Craftsman 2-cycle equipment: prime the bulb 5-7 times, set choke to FULL, pull until it pops, move choke to HALF, pull to start, then move to RUN. If it will not start: (1) Stale fuel — the #1 cause. Drain and replace with fresh 50:1 mix. (2) Flooded engine — if you smell fuel, set choke OFF, hold throttle wide open, and pull 10+ times. (3) Fouled spark plug — remove, inspect, replace if needed. (4) Clogged air filter — clean or replace. (5) Fuel filter clogged — replace the in-tank filter. (6) Carburetor varnished from old fuel — clean or rebuild. (7) Primer bulb cracked — if the primer does not firm up after pressing, it has a hole. Replace. (8) Spark arrestor clogged — carbon deposits restrict exhaust.

The most successful fix is "Replace Spark Plug and Clean Carburetor" (medium difficulty, ~45 minutes). Estimated DIY cost: $10-$25. HomeMD has 2 community-ranked fixes for this error.

This error is rated medium severity. It should be addressed soon, but your appliance may still function in a limited capacity.

Yes — the top-ranked community fix ("Replace Spark Plug and Clean Carburetor") is rated medium difficulty and takes about 45 minutes. Tools needed: Spark plug wrench, Flathead screwdriver, Carburetor cleaner spray, Wire brush.

DIY cost: $10-$25. Professional repair typically costs $150-$220. Many homeowners save money by trying the top-ranked community fix first.

The Craftsman Craftsman B210 27cc 2-Cycle Gas Leaf Blower (210 MPH) has 5 other known error codes, including: MECH-FUEL-LEAK (Fuel Leaking from Blower — Fire Hazard), MECH-NO-POWER (Loss of Blowing Power — Weak Airflow), MECH-OVERHEATING (Engine Overheating During Extended Use), MECH-PULL-CORD (Pull Cord Breaks or Will Not Retract), MECH-RUNS-ROUGH (Engine Surges or Runs Erratically).

Error code MECH-WONT-START also appears on 9 other Craftsman models: Craftsman CMXGWAS021021 3000 PSI 2.3 GPM Gas Pressure Washer, Craftsman M110 140cc 21" Push Gas Lawn Mower, Craftsman R105 30" 10.5 HP Gear-Drive Rear Engine Riding Mower, Craftsman T110 42" 17.5 HP Briggs & Stratton Single-Cylinder Riding Lawn Tractor, M270 21 in 159 cc 3-in-1 Self-Propelled Gas Push Mower, S180 42cc Chainsaw, and 3 more. The fix may vary by model, so check each model's specific page for tailored repair steps.