Yamaha EF1000A — Spark plug inspection
Maintenance
For the Yamaha EF1000A, from the Yamaha owner's manual.
Procedure
- Check for discoloration and remove the carbon.
- Check the spark plug type and gap.
- Install the spark plug.
Specs & values
- Standard Spark Plug: BPR6HS Amazon eBay $10.00 (NGK)
- Spark Plug Gap: 0.6–0.7 mm (0.024–0.028 in)
- Spark Plug Torque: 20 N•m (2 kgf•m, 14 lbf•ft)
Source: Yamaha owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.