2009 Suzuki 400 LTZ Quad Sport Service Manual, Page 157Get this manual
1D-15 Engine Mechanical: 17) Disconnect the reverse lock release cable (15)Refer to "Gear Position (GP) Switch Removal and Installation in Section 5B (Page 5B-12)"21) Remove the engine sprocket (22) with drive chain22) Remove the gear shift lever (23) and spacersNOTE Mark the gearshift shaft head at which the gearshift lever slit set for correct reinstallation 15
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18) Disconnect the engine ground wire coupler (16), starter motor lead wire (17) and breather hose (18)