super 8 50 2t 1 Manuel atelier : Page 186

          17. EXHAUST EMISSION CONTROL
      SYSTEM                                                                         SUPER8 50 2T


 TROUBLESHOOTING
 High CO at idle speed
 1. Damaged or clogged reed valve
 2. Damaged or clogged air injection cut-off valve
 3. Clogged air cleaner

 Backfiring at sudden deceleration
 1. Damaged reed valve (malfunction)
 2. Faulty air injection cut-off valve (unable to close)
 3. Carburetor incorrectly adjusted
 4. Faulty air cut-off valve
 5. Leaking vacuum tube

 Exhaust muffler noise
 1. Faulty air injection cut-off valve
 2. Broken vacuum tube
 3. Faulty reed valve




 SERVICE INFORMATION
 GENERAL INSTRUCTIONS
 ·   During operation, be careful to avoid scalding caused by the exhaust muffler.
 ·   Note the locations of tubes for proper installation.
 ·   Replace any damaged tube with a new one.
 ·   Make sure to tighten the connector of each tube securely

 TOOLS
 · Vacuum pump


 SPECIFICATIONS
 Air injection cut-off valve actuating pressure
   250mm/Hg30 liter/min.
 Reed valve stopper clearance4.6mm




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