Clean engine oil is essential to long engine life. Full-flow filter elements and full-flow spin-on assemblies are an added improvement over older methods of filtration and can be installed on any applicable engine not equipped with a filter. Installing an oil filter on an engine not equipped with a filter can increase the oil change interval from 25 to 50 hours.
DATE RELEASEED: January 2007 CURRENT REVISION: September 2008 TITLE: O-235 and O-290 Series Operator’s Manual DOCUMENT PART NUMBER: 60297-9 & 60297-9-1 MODELS AFFECTED: O-235 series, O-290-D series, O-290-D2 series engines
DATE RELEASEED: June 2006 CURRENT REVISION: March 2009 TITLE: O-540, IO-540 Series Operator’s Manual DOCUMENT PART NUMBER: 60297-10 & 60297-10-3 MODELS AFFECTED: O-540 and IO-540 series
DATE RELEASEED: April 2007 CURRENT REVISION: September 2008 TITLE: O-320 76 Series Operator’s Manual DOCUMENT PART NUMBER: 60297-22 & 60297-22-1 MODELS AFFECTED: O-320
DATE RELEASEED: March 2006 CURRENT REVISION: October 2006 TITLE: TIO-540 Series Parallel Valve Cylinder Heads Operator’s Manual DOCUMENT PART NUMBER: 60297-23P & 60297-23P-2 MODELS AFFECTED: TIO-540 series
DATE RELEASEED: December 2013 CURRENT REVISION: November 2014 TITLE: YO-233-B2A Series Engine Installation and Operation Manual DOCUMENT PART NUMBER: 60297-40 & 60297-40-B MODELS AFFECTED: YO-233-B2A Series