DuroMax XP5500HX — Spark Plug Maintenance
Maintenance
For the DuroMax XP5500HX, from the DuroMax owner's manual.
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Before you start
- Improper maintenance may cause reduced fuel economy, misfires, trouble starting
Procedure
- Pull on the spark plug cap to remove it
- Unscrew the spark plug using the spark plug wrench included
- Discard and replace if cracked or chipped
- Measure the plug gap with a gauge
- Clean and re-gap if reusing the spark plug
- Screw the spark plug back into place using the spark plug wrench
- Replace the spark plug cap
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- We recommend using an F7RTJC spark plug such as NGK BP6ET
- Spark plug gap: 0.7-0.8 mm (0.028-0.031 in)
Source: DuroMax 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.