How to Change a Craftsman Lawn Mower Spark Plug (+Gap)
Change your Craftsman mower spark plug in 6 steps: find it by body style, use a 5/8 or 13/16 socket, gap to .030, and reinstall without cross-threading.
All guides
Every repair and maintenance guide
Each one is tested on a real mower by Akshay Singh before it’s published, and dated when it changes. Pick a topic, or search for the part, symptom or brand you’re dealing with.
The library
- Guides published
- 142
- Topics
- 2
- Newest guide
- September 11, 2026
- Tested and written by
- Akshay Singh
All guides · Page 9
Showing 121–135 of 142 guides, newest first
Craftsman Lawn Mower Air Filter: Find Your Part by Engine
Match the exact Craftsman air filter to your engine: decode your 917 tag, find the Briggs, Kohler, Tecumseh or MTD part, and stop buying the wrong one.
Craftsman Lawn Mower Spark Plug: 3-Plug Chart & Gap (2026)
Match your Craftsman mower's plug fast: RC12YC, RJ19LM or F5TRC by engine, plus the exact gap, socket size and Champion-to-NGK cross-reference.
How to Tune Up a Craftsman Lawn Mower (917 Tag First)
Tune up your Craftsman lawn mower in under an hour: read the 917 tag, then service the oil, air filter, spark plug and blade by engine (Briggs, Kohler, MTD)
Honda Lawn Mower Tune-Up Kit: We Matched 6 by Serial (2026)
Match your Honda mower to the right tune-up kit by engine and serial. See what's inside, genuine-vs-aftermarket value, and where to buy it cheapest in 2026.
Clean a Honda Air Filter: Paper, Foam & Dual (Bench-Tested)
Clean your Honda mower air filter the right way: tap or replace the GCV paper element, wash and re-oil foam, and fix an oil-soaked filter fast.
How to Change a Honda Lawn Mower Spark Plug in 6 Steps
Change your Honda lawn mower spark plug in 6 steps: 13/16″ socket, .028–.031″ gap, 14 ft-lb torque, plus how to read a fouled plug. HRR, HRX & GCV.
Spark Plug for a Honda Lawn Mower (BPR5ES, Gap & Socket)
Find the right spark plug for your Honda mower: nearly all take an NGK BPR5ES, gap 0.028–0.031 in, 13/16 in socket. Cross-reference plus the BPR6ES exceptions.
Honda Lawn Mower Air Filter Finder (GCV160/170/190)
Decode your Honda engine code (GCV160/170/200) to the exact air filter part number, compare OEM vs aftermarket, and buy the one that fits.
How to Tune Up a Honda Lawn Mower: 4 Steps Under $40
Tune up a Honda GCV mower in 4 steps - oil, air filter, spark plug, blade. Exact GC/GCV specs (10W-30, BPR5ES, .028–.031 gap) plus DIY-vs-shop costs.
Toro Tune-Up Kit Finder: Match 6 Kits to Your Engine
Match Toro mower to right tune-up kit in 2 minutes - decode your engine and serial, compare the 6 OEM kits and what's inside, and see OEM vs cheaper third-party
How to Clean a Toro Air Filter (3 Models Tested)
Clean Toro air filter the right way: wash the foam, never wash the paper, and open the cover by model. Includes the 2–3x-a-season rule and the oil-in-filter fix
How to Change a Toro Mower Spark Plug (Socket + Gap)
Change your Toro spark plug in 6 steps — the exact socket size (5/8″ or 13/16″), the 0.030″ gap, and the plug that fits your engine. Under 10 minutes.
Toro Lawn Mower Spark Plug: Find Yours by Engine (2026)
Find the right Toro spark plug by engine: Briggs, Kohler or Toro, with the exact Champion/NGK number, gap and socket. No upsell, just OEM spec.
Toro Lawn Mower Air Filter: Match It by Engine (Decoder)
Match your Toro air filter to its exact model and engine (Recycler 22, Kohler, Briggs, Toro OHV) - plus an OEM-vs-generic verdict and where to buy.
Can’t find your problem?
Tell us what the mower is doing: the model, the engine and what you’ve already tried. We reply within 48 hours, and the questions that come up often become new guides.