DuroMax XP5500EH — Spark Plug Maintenance
Maintenance · Ignition
For the DuroMax XP5500EH, from the DuroMax owner's manual.
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Before you start
- Improper maintenance may cause misfires, hard starting, or thread damage
Procedure
- Pull on spark plug cap to remove it
- Unscrew spark plug using included spark plug wrench
- Inspect; discard and replace if cracked or chipped
- Measure plug gap with a gauge, should be 0.7-0.8mm (0.028-0.031in)
- If re-using, clean with wire brush and re-gap
- Screw spark plug back in using spark plug wrench
- Replace spark plug cap
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Gap 0.7-0.8mm (0.028-0.031in)
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.