View Full Version : O.S. Engines Support



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  1. OS 1.08
  2. vz-rz interchange?
  3. MOVED: Need an O.S. FS61 Marine engine
  4. OS .21VZ-B Premature Wear Problems - Please Advise
  5. OS .60 FP RN
  6. Beginner: Cannot Start O.S. .46 LA
  7. OS300 4stroke twin
  8. O.S. Max FP 40
  9. Proper Break-In for an O.S. 25 fx
  10. Prop for OS 300 4stroke twin
  11. OS 50SHX-H
  12. Installing valves in cylinder head
  13. Rumor on the .46 FX
  14. OS FX 91 problems
  15. Hard to tune
  16. owners and parts manual, o s 61 sf
  17. 91 FX knocking
  18. .91 4-stroke exhaust pipe size
  19. OS FS 48 Surpass
  20. O.S. Carburetor #6B .61 SFN-H
  21. OS 61 FSR Carb question/replacement
  22. Bearings
  23. O.S. 46 FS
  24. OS FS-91 Removing the bearings
  25. Question about the Hanno Specials
  26. OS 120 FS SURPASS W/PUMP PLUMBING?
  27. Replacement Piston Ring
  28. OS 120 FSIII w/pump
  29. OS 300 4 stroke twin
  30. OS 160 FX Crank Case Tap?
  31. 140RX throttle linearity
  32. Great Service
  33. Tuning 120 fs surpass
  34. 3 View Outline ??
  35. Timing on O.S. .91SF Surpass
  36. .15FP CL vs RC question
  37. OS 108, Remote needle?
  38. OS .46 LA
  39. OS 108
  40. the 46ax
  41. OS 1.60FX Fuel choices
  42. OS FP/LA interchangability
  43. having problems with OS 91FX
  44. Help for parts for a 90 FSR?
  45. OS 61 SF Burning Plugs
  46. Os 140 rx
  47. OS 140RX
  48. OS 60 FR Muffler??
  49. Bax - Hobby Services inability to repair older OS engines??
  50. OS 160 Cant Get It Rich
  51. OS parts
  52. Parts for discontinued engine
  53. 91FX and a Bisson Pitts Muffler
  54. OS 48FS choke valve interchangability
  55. Hanno Special Header Length
  56. OS Max H
  57. OS 1.60 FX SPINNER ADAPTOR ?????
  58. Is my 46fx liner peeling?
  59. OS-32SX-H question
  60. Hanno Special Plug?
  61. 50 sx-h ring
  62. FX91-What fuel tubing size?
  63. o.s. 50 sx air bubbles
  64. having problems with tuning of O.S .61FX
  65. Setting up an O.S. 160FX
  66. Screw Size 46 LA
  67. i need to know what do i need to turn my os .12 cv into a pull start
  68. 2 questions about my os 40 la
  69. OSMax 12 CZ-Z problem
  70. Temperature of engines?
  71. OS 40Max-H My first engine teardown-help!
  72. OS 46LA...only as powerful as a 40?
  73. OS .46 FX Issue
  74. .91 FSR Parts Sources...
  75. OS 91 FS II pump
  76. OS91 - Dry rear bearing
  77. Problems with MAX 61FX
  78. OS FX .46 Getting Tired?
  79. OS 90FS FOUR STROKE ENGINE IDLE SETTING
  80. Info on FS120S II
  81. parts exchangeability
  82. HELP!! MY OS 50SX ISN'T RUNNING PROPERLY!
  83. Storage of OS 120FS with pump
  84. OS 46 FX Problem
  85. .61SF-P pump nipple broken
  86. OS #743 muffler replacement that fits?
  87. pre detonating OS 1.6
  88. OS 50 w/ 60 Carburetor
  89. OS 61RF-P
  90. OS 40 LA Airbleed setting
  91. OS Rotary engine
  92. O.S. 50 SX air bubbles
  93. os 48 compression loss
  94. OS 120 FS Question
  95. Question about service turn around time
  96. FS 70 Ultimate Availability
  97. OS 91 getting richer on idle
  98. OS 160 Fuel ?
  99. OS LA40 Carb Repair
  100. O.S. .91 FX
  101. OS FS-52 Throbbing
  102. 91 FX idle
  103. OS 70 S II Question
  104. Rusted stuff
  105. os 70 heli engine piston explodes
  106. OS 40 LA Power
  107. OS 91 Surpass question
  108. 52 4/C won't draw fuel
  109. LA 0.40 RPM's running away from me.
  110. OS MAX RZ compression
  111. OLD vs NEW OS 46 FX
  112. OS 140RX Rich in Midrange
  113. OS 1.60 Prop
  114. OS 25 MAX FP
  115. FS-120 (non-surpass) Performance Specifications
  116. FS 48 Surpass
  117. New or Old OS - How do you tell?
  118. ring job
  119. Four stroke mufflers
  120. .46FX to .50SX Upgrade ... help please ...
  121. OS FT-300 FOR MY PITTS SPECIAL
  122. Newly Broken In OS 46 FX
  123. Remote needle valves in os .50 SX and .91 FX
  124. OS 61 FS Muffler?
  125. Can I Make My .61FX a .91?
  126. 40 SR parts
  127. bubbles!! ehhh!
  128. O.S. .61 SX-H Heli Engine- HEIM Mechanics Setup
  129. Tried everything, 46 NV still leaks?
  130. os 46fx..need serious help
  131. OS 40 No compression
  132. OS Max SR-40 Marine - what muffler?
  133. Main bearing broke
  134. Manual for a Max .61 SF?
  135. Tri prop for OS FS70
  136. How to send an item to service
  137. About this Forum
  138. fx 61 loosing power
  139. engine help
  140. OS 91 Surpass-version I
  141. O.S. 25FX and O.S. 25SF
  142. New 91FX muffler missing baffle
  143. OS 91 FX very slow to idle down
  144. os Wankel 1800
  145. OS 91 FX
  146. O.S. 1.08 FSR
  147. I lost a muffler bolt on my 46 fx
  148. Corrosion on piston/cylinder and crank
  149. Port timing 91FX Vs 91SxH
  150. 25 la....
  151. FS-120 surpass fuel setup
  152. 0.s.15 cv-rx refusing to keep running
  153. OS 46 SF
  154. FS-70 header pipe broke on run-in
  155. Pressure Tap OS 91FX
  156. OS60 MAX-H
  157. Bax - OS .10 FSR Con Rod Substitute??
  158. FS90 head stripped
  159. Looking for OS FS-26 Info ...
  160. 46FX - engine rpm up and down at full throttle
  161. Prop Choice
  162. OS 120 w/pump instruction manual needed
  163. OS 120 Surpass I power loss
  164. OS 50 sx Sucking air?
  165. Brass hexagon inlet holder position??
  166. Liner pealing
  167. O.S. 46FX Engine temp
  168. Wankel woes
  169. OS FS-70S head
  170. OS 50 SX making strange noise
  171. 46 LA Prop spun off during break-in run
  172. I'm a newb: OS Max SF 61 With Pump
  173. OS 160FX Bearing Problems?
  174. fx160 needle setting?
  175. OS120 Surpass I Bearings & Gasket Q?
  176. Os .15 Cva
  177. Aeroworks Extra 300L Profile ARF + OS BGX-1 (3500)
  178. Os70 Sz-h Ring
  179. help with surpass 70
  180. oil content and type
  181. Warranty service on OS.91FX, turn around time??
  182. os max 40fp + glow plug
  183. New OS 91 SX acro?
  184. Help with disassemble of OS 120 FS
  185. Position of Fuel Tank
  186. O.S .12 TR(P)-T help.
  187. OS FX 1.60 + Top Flight 18x10
  188. O.S. 32 sx-h gradually lost power
  189. OS 140 RX Bearing
  190. Valve clearence for OS 91 Surpass?
  191. os 300 twin mounting
  192. Surpass 70
  193. Is the Tower plug same as the OS #8???
  194. OS 1.08 low end needle problems
  195. O.S. .46fx
  196. OS .46 fx muffler
  197. 1.60FX Needle Valve replacement
  198. os 61 h wc start off fuel settings
  199. O.S.70B Mixture Control Carb
  200. OS carb # 7DV
  201. OS 46 fx
  202. which muffler?
  203. OS 120 Surpass II head gaskets
  204. 120 Surpass II running lean and needle valve screwed all the way out!?
  205. OS 120 Surpass III optional header
  206. Turnaround time at O.S.
  207. Replacement of my 91FX (Bax)
  208. os 46 fx doesnt turn
  209. 91 Fx
  210. OS 91 MAX Muffler wanted.
  211. the perfect propeller is...
  212. O.S. FS-120S-E Carb leakage
  213. OS FS 91 4 Stroke
  214. 48 surpass compression loss
  215. Ff-240
  216. .21 Rg M
  217. .21 outboard
  218. OS 120 II idle problem
  219. valve adjustment screw
  220. OS screws
  221. 160FX midrange lean condition
  222. OS 91 Fx Quits in mid Range.
  223. Os 160
  224. OS 40 four stroke surpass, idle prob !
  225. os 32 sx
  226. 140Rx & 140EFI Rear Bearings
  227. 40 LA with poor fuel flow (I think)
  228. Torque specs for cyl head screws?
  229. O.S. fuel
  230. advice on Surpass 120 back bearing
  231. O.S. .12 cv-r stalls
  232. OS Max 61FX
  233. 50SX (non-H) on Heli Fuel?
  234. OS .46fx liner peeling?
  235. perry pump on back plate
  236. Os 46sf-p Abc
  237. OS .61 FX missing part?
  238. 46fx breakin
  239. 25LA Problem
  240. OS 50SX Break in ?
  241. 61 FSR carb
  242. starting my o.s..15 cv-x
  243. OS .15 CV probs
  244. OS120III Surpass regulator leaking
  245. In cowl Muffler for 91FX
  246. What prop for OS .46 FX?
  247. Quick question!
  248. OS .40 FP Questions
  249. Response pour over the 46 FX
  250. fx 160

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