Download or purchase Honda Engine owners' manuals for the GX390. Honda GX Governor Removal Guide 2 continued from Page 1 control Mikuni Carb also Stinger Exhaust Header, MSRP: length with needle nose pliers. Original WARNER part suitable for the following Honda models: HRD535 - HXE MZBM 8000001-8099999, HRD535 - HXE MZBM 8000001-8099999, HRD535 - QME MZBM 8000001-8099999. how to adjust the governor on a small engine and how the governor system works-small engine tachometer: http://www.amazon.com/gp/product/B00F. Honda Horizontal OHV Engine — 389cc, GX Series, 1in. x 3 31/64in. Shaft, Model# GX390UT2QAA2 Honda GX390 13HP Engine Parts Honda GX390 13hp Engine Parts Diagrams Honda's GX390 13 HP engine is the largest single cylinder OHV engine that Honda builds. Keep this owner’s manual handy, so you can refer to it at any time. This owner’s manual is considered a permanent part of the engine and should remain with the. Cleaning a Honda Carburetor on a GX160. GX200 GX240 GX270 GX340 and GX390 are virtually identical, just a larger bore. Official specs and features for the Honda GX390 small engine. The GX390 is a small four-stroke gas engine offering superior performance and reliability. Hi All, I'm looking for information on how to adjust the governor on a Honda GCV160. I've looked and looked, but can't seem to find a how to. Thanks!