Generac — Replace Spark Plugs

Maintenance

From a Generac service manual covering: 0D3358, 0D7675, 0D9033, 0D9708, 0E0038, 0E3342, EVT-04174-0, EVT-04198-0, EVT-04629-0, EVT-04629-1, EVT-04630-0, EVT-04712-0…. Check it applies to your exact model before use.

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Procedure

Remove spark plug(s)
Set spark plug gap at .76 mm (.030") for all models
Replace spark plugs if electrodes are burned away or the porcelain is cracked
Install spark plug(s) and torque to 20.0 Nm (180 in. lbs.)

Tools required

Spark plug gap gauge Amazon
Torque wrench Amazon

Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.

Specs & values

Spark plug gap .76 mm (.030")
Torque 20.0 Nm (180 in. lbs.)
Generac Part No. 072347 eBay $1.99; Champion RC12YC Amazon eBay $12.90 NAPA $11.52 FridayParts $19.99

Source: Generac service 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.

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