Yamaha EF3000iSE — Spark Plug Inspection
Maintenance
For the Yamaha EF3000iSE, from the Yamaha owner's manual.
Procedure
- Loosen bolt and remove side cover.
- Remove spark plug cap and spark plug.
- Check for discoloration and remove the carbon.
- Check spark plug type and gap.
- Install the spark plug.
- Install spark plug cap.
- Install side cover and tighten bolt.
Specs & values
- Standard spark plug BPR4ES FridayParts $49.00 (NGK)
- Gap 0.7-0.8 mm (0.028-0.031 in)
- Torque 17.5 N*m (1.75 kgf*m, 13 lbf*ft)
- Standard electrode color: tan
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.