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View Full Version : Engines and Mufflers

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  1. Webra .75 AAR duel pluged anyone tried one
  2. YS 91 crappy idle help
  3. OS 91c-spec HELP
  4. os37 tune
  5. YS91/MP2/8:45
  6. OS Hyper 50 - Tips and Troubleshooting Gudie
  7. OS 60L carb Troubleshooting and Repair tips
  8. what engine for r60v2
  9. CSPEC Help
  10. Where to get all these shims everyone talks about
  11. Motor has to much compression!
  12. OS 50 Hyper
  13. Governor question
  14. OS .61 SX-WC with viperhead?
  15. I'm going insane! OS 50 Hyper won't run!
  16. Sensitive carb
  17. powerband charts
  18. off-model break-in
  19. OS 70 SZ-H from LOW to HI Problem
  20. Fuel Magnet and OS 91 SZ
  21. any ideas? start shaft not turning?
  22. Anyone get the new pumped SZH yet??
  23. New Funtech 3D muffler
  24. Century CN3090 Silent Power 90 Tuned Muffler on a YS61ST-2
  25. YS91 sticky barrel