Power Solutions International — Checking/Draining Oil Build-Up In The Vaporizer Regulator
Maintenance
From a Power Solutions International service manual — check it applies to your exact model before use.
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Before you start
- A small amount of fuel may still be present, use gloves and eye protection.
- Draining the regulator when the engine is warm will help the oils flow freely.
Procedure
- Move equipment to a well ventilated area, ensure no ignition sources.
- Start the engine.
- With engine running close the manual valve.
- When engine runs out of fuel turn OFF key and disconnect negative battery cable.
- Loosen hose clamps at inlet and outlet, remove hoses.
- Remove regulator mounting bolts.
- Place small receptacle in engine compartment.
- Rotate regulator to 90° so outlet fitting points down into receptacle and drain.
- Inspect secondary chamber and remove large dried particles.
- Remove receptacle, reinstall regulator retaining bolts and tighten to specifications.
- Reinstall fuel hoses.
- Reconnect hoses.
- Slowly open the manual service valve.
- Leak check inlet and outlet fittings.
- Start engine and recheck for leaks.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Source: Power Solutions International 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.