User Guide

17. EVAPORATIVE/EXHAUST EMISSION

CONTROL SYSTEM

17-0

SUPER 9 50

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EVAPORATIVE/EXHAUST EMISSION

CONTROL SYSTEM

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EXHAUST EMISSION CONTROL SYSTEM ............................. 17-1

EXHAUST MUFFLER .............................................................. 17-2

EXHAUST EMISSION RELATED SYSTEM INSPECTION........ 17-3

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17. EVAPORATIVE/EXHAUST EMISSION CONTROL SYSTEM SUPER 9 50 EXHAUST EMISSION CONTROL SYSTEM The exhaust emission control system adopted by this model is an oxidizing catalytic converter which is located in the middle of the exhaust muffler to reduce pollutants in the exhaust emission. Exhaust Muffler Diagram Catalytic Converter FUNCTION Item Oxidizing Catalytic Converter Purpose Function Reduce the concentration of HC and CO in the exhaust emission.
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17. EVAPORATIVE/EXHAUST EMISSION CONTROL SYSTEM EXHAUST MUFFLER SUPER 9 50 Exhaust Muffler Joint Lock Nut REMOVAL Remove the two exhaust muffler joint lock nuts and two exhaust muffler lock bolts. Remove the exhaust muffler. ＊ • The temperature of exhaust muffler is very high. Be careful to avoid burns during working. Exhaust Muffler Lock Bolts INSPECTION 1. Inspect the exhaust muffler and joint for damage or crack. Replace if necessary. 2.
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17. EVAPORATIVE/EXHAUST EMISSION CONTROL SYSTEM SUPER 9 50 EXHAUST EMISSION RELATED SYSTEM INSPECTION Clean or replace the air cleaner. Clean and adjust the carburetor. Inspect the auto bystarter system. Clean and inspect the spark plug. Inspect the ignition system. EXHAUST EMISSION TEST AND ADJUSTMENT 1. Start the engine and warm up for several minutes. (Engine surface temperature 50℃_ 60℃ ) 2. Adjust the idle speed to:: SH10AD:2000±100rpm SF10DA:1900±100rpm 3.