Yamaha EF1000iS / EF2000iS — Muffler screen and spark arrester service
Maintenance · Muffler / spark arrester
For the Yamaha EF1000iS / EF2000iS, from the Yamaha owner's manual.
Before you start
- The engine and muffler will be very hot after the engine has been run; avoid touching.
Procedure
- Remove the screws and pull the cover outward
- Loosen the bolt and remove the muffler cap, muffler screen, and spark arrester
- Remove carbon deposits on the muffler screen and spark arrester using a wire brush
- Check the muffler screen and spark arrester; replace if damaged
- Install the spark arrester
- Install the muffler screen and muffler cap, then tighten the bolt
- Install the cover and tighten the screws
Tools required
- wire brush Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
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.