2004-2006 (2007) Honda TRX400FA Fourtrax Rancher / TRX400FGA Rancher AT GPScape Service Manual, Page 153Get this manual
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ENGINE REMOVALINSTALLATION Install the following: exhaust pipe (page 3-15) carburetor (page 6-20) air cleaner housing (page 6-5) spark plug cap
Pour the recommended engine oil (page 4-12)