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  1. OS .46 carb problem
  2. NEED Regulator Cover of #70C carb body
  3. O.S 502 pipe system...
  4. O.S. 70 Ultimate Problem - Fuel leak
  5. os fs.70s surpass II prop
  6. OS 120 FT
  7. O.S. FS-120 manual
  8. OS 50 SX quitting
  9. OS 120 FSIII power down
  10. Headers for OS 120 III pumped
  11. OS 1.08 need a new ring and liner
  12. OS Cylinder Peeling
  13. Info On OS 52 FS
  14. OS 70 Ultimate RPM Figures
  15. How to remove cylinder lining in OS ABC-engine?
  16. OS 160 FT outline drawing and dimensions ?
  17. OS .46 Fx sleeve problems
  18. 0S FS 120 SURPASS PUMP DIAPHRAM
  19. OS 1.40 'popping' at idle
  20. OS 70 Ultimate problems
  21. OS Max .21 VZ-B (P) rear exhaust engine
  22. One way bearing prob
  23. will it fit?????????? plz hlp
  24. OS make Chrome sleeve?
  25. which muffler??
  26. os 91 vr df
  27. Carb Parts for 91 4 stroke.
  28. OS 70Surpass - starting problem
  29. OS 1.40 eating glow plugs
  30. OS 120 FT
  31. OS Engine Comparison
  32. OS 45 FSR Part
  33. Reassembly procedure. OS Gemini 120 & 160
  34. Glow Plugs for OS .25 FX
  35. os 50 sx max rpm 11000
  36. Where to find needle valve assembly for older FS 70 Surpass
  37. os91 engine
  38. 1.40 cold starting?
  39. OS 91 FX break in and props?
  40. OS50SX...Very Strange problem!!!
  41. OS .12 TR (P) needle settings?
  42. os 91fs cuts out during flight
  43. OS 70 crank shaft
  44. crank-50sx vs 50sxh
  45. OS 91 FX which prop for slow flight/torque?
  46. Size for carb screws
  47. O.S. FT-160 Twin
  48. Suggestion for OS 2-stroke muffler improvement
  49. OS 50 SX and OS 50SXH Problem?
  50. Replace conrod and piston pin os21 VF-BR
  51. Propeller Shaft - O.S. 70 Surpass
  52. Where to buy new needle for 46 FX
  53. OS 50SX Carb problem, need help.
  54. Ring for OS 50
  55. OS .65 marine engines
  56. 1.60 overheating ?
  57. prop size and rpm
  58. loose muffler
  59. Loose manifold
  60. OS70 SurpassII Carby
  61. 140 FI. How do I reset EC1
  62. no NV response on OS46FA
  63. Gemini Question
  64. 91FX rpm
  65. 120 SURPASS DOWN ON POWER?
  66. 91 fx break in
  67. FX 61
  68. older 61 fourstroke
  69. OS .91 SX-H
  70. BGX-1 3500 wont run vertical help
  71. OS 70 Ultimate
  72. 61 FX idle adjustment keeps changing
  73. FT-300
  74. OS .40 Surpass 4-stroke problem
  75. OS 91 Surpass II Max RPM and Tach Setting?
  76. O.S. .91 Surpass I carb settings and beginners questions.
  77. .46 ax sllimline muffler
  78. OS Max .10 orientation
  79. OS 91 Surpass Idle Problem
  80. thread size on .52 4s
  81. OS7D Carb Setting
  82. OS .91 FSR
  83. OS120 SIII RPM
  84. Practical rpm vs Rated Power
  85. OS 91 FX exhaust pipe
  86. Tuned pipe for 50 SX
  87. New 91 4-stroke crankcase vent strategy?
  88. OS 15 CL conversion?
  89. Break in FS-91 SII
  90. FX91 mixture problem
  91. Prop for 0s50 sx
  92. what causes this
  93. OS FS-91 Idle settings problem
  94. OS #743 muffler
  95. Need some help Bax!!!
  96. Breaking in a .61 FX
  97. OS 61 RFP ABC
  98. os .26 and .40 4 stroke car engines q's
  99. OS 46 C/L venturi diameter
  100. os fs90 fourstroke
  101. OS 91 FS engine quits
  102. OS 61FX Air Filter?
  103. OS 70 Ultimate
  104. OS BGX
  105. os 1.08 breakin
  106. Needle valve location OS 160
  107. O.S 1.60
  108. 30% CoolPower us in 4-strokes
  109. Electronic copy of instructions for O.S. 60 four-stroke engine
  110. OS FS 120 WITH INCLINED ROCKERS INSTRUCTIONS
  111. OS 32H Question
  112. OS 91 Surpass Exhaust header breaks
  113. Is there a .25 AX on the way?
  114. OS 46FX muffler screw
  115. OS 1.60 bearings
  116. Help, was this my fault or OS's?
  117. Muffler back pressure
  118. propeller for OS 30
  119. 90FS Ring Gap
  120. 15 CVA cover plate
  121. LA65 Header pipe
  122. OS .32 Fabc
  123. 61RF-P ABC prop questions
  124. OS FT 300
  125. Cowled OS 91 FX
  126. Problem with OS 26 FS
  127. FS-91 Surpass II - Black residue on the inside-top of fuel tank after running in
  128. OS 61 MAX SF Pumped
  129. OS 90 needle valve and o ring
  130. tank pressure
  131. fuel?
  132. Rumors of an .18
  133. Varnish or Rust?
  134. 61FX pitts muffler
  135. OS 1.08
  136. vz-rz interchange?
  137. MOVED: Need an O.S. FS61 Marine engine
  138. OS .21VZ-B Premature Wear Problems - Please Advise
  139. OS .60 FP RN
  140. Beginner: Cannot Start O.S. .46 LA
  141. OS300 4stroke twin
  142. O.S. Max FP 40
  143. Proper Break-In for an O.S. 25 fx
  144. Prop for OS 300 4stroke twin
  145. OS 50SHX-H
  146. Installing valves in cylinder head
  147. Rumor on the .46 FX
  148. OS FX 91 problems
  149. Hard to tune
  150. owners and parts manual, o s 61 sf
  151. 91 FX knocking
  152. .91 4-stroke exhaust pipe size
  153. OS FS 48 Surpass
  154. O.S. Carburetor #6B .61 SFN-H
  155. OS 61 FSR Carb question/replacement
  156. Bearings
  157. O.S. 46 FS
  158. OS FS-91 Removing the bearings
  159. Question about the Hanno Specials
  160. OS 120 FS SURPASS W/PUMP PLUMBING?
  161. Replacement Piston Ring
  162. OS 120 FSIII w/pump
  163. OS 300 4 stroke twin
  164. OS 160 FX Crank Case Tap?
  165. 140RX throttle linearity
  166. Great Service
  167. Tuning 120 fs surpass
  168. 3 View Outline ??
  169. Timing on O.S. .91SF Surpass
  170. .15FP CL vs RC question
  171. OS 108, Remote needle?
  172. OS .46 LA
  173. OS 108
  174. the 46ax
  175. OS 1.60FX Fuel choices
  176. OS FP/LA interchangability
  177. having problems with OS 91FX
  178. Help for parts for a 90 FSR?
  179. OS 61 SF Burning Plugs
  180. Os 140 rx
  181. OS 140RX
  182. OS 60 FR Muffler??
  183. Bax - Hobby Services inability to repair older OS engines??
  184. OS 160 Cant Get It Rich
  185. OS parts
  186. Parts for discontinued engine
  187. 91FX and a Bisson Pitts Muffler
  188. OS 48FS choke valve interchangability
  189. Hanno Special Header Length
  190. OS Max H
  191. OS 1.60 FX SPINNER ADAPTOR ?????
  192. Is my 46fx liner peeling?
  193. OS-32SX-H question
  194. Hanno Special Plug?
  195. 50 sx-h ring
  196. FX91-What fuel tubing size?
  197. o.s. 50 sx air bubbles
  198. having problems with tuning of O.S .61FX
  199. Setting up an O.S. 160FX
  200. Screw Size 46 LA
  201. i need to know what do i need to turn my os .12 cv into a pull start
  202. 2 questions about my os 40 la
  203. OSMax 12 CZ-Z problem
  204. Temperature of engines?
  205. OS 40Max-H My first engine teardown-help!
  206. OS 46LA...only as powerful as a 40?
  207. OS .46 FX Issue
  208. .91 FSR Parts Sources...
  209. OS 91 FS II pump
  210. OS91 - Dry rear bearing
  211. Problems with MAX 61FX
  212. OS FX .46 Getting Tired?
  213. OS 90FS FOUR STROKE ENGINE IDLE SETTING
  214. Info on FS120S II
  215. parts exchangeability
  216. HELP!! MY OS 50SX ISN'T RUNNING PROPERLY!
  217. Storage of OS 120FS with pump
  218. OS 46 FX Problem
  219. .61SF-P pump nipple broken
  220. OS #743 muffler replacement that fits?
  221. pre detonating OS 1.6
  222. OS 50 w/ 60 Carburetor
  223. OS 61RF-P
  224. OS 40 LA Airbleed setting
  225. OS Rotary engine
  226. O.S. 50 SX air bubbles
  227. os 48 compression loss
  228. OS 120 FS Question
  229. Question about service turn around time
  230. FS 70 Ultimate Availability
  231. OS 91 getting richer on idle
  232. OS 160 Fuel ?
  233. OS LA40 Carb Repair
  234. O.S. .91 FX
  235. OS FS-52 Throbbing
  236. 91 FX idle
  237. OS 70 S II Question
  238. Rusted stuff
  239. os 70 heli engine piston explodes
  240. OS 40 LA Power
  241. OS 91 Surpass question
  242. 52 4/C won't draw fuel
  243. LA 0.40 RPM's running away from me.
  244. OS MAX RZ compression
  245. OLD vs NEW OS 46 FX
  246. OS 140RX Rich in Midrange
  247. OS 1.60 Prop
  248. OS 25 MAX FP
  249. FS-120 (non-surpass) Performance Specifications
  250. FS 48 Surpass