View Full Version : O.S. Engines Support



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  1. Nozzle assemblies for 40FP and 25FP
  2. OS61SF ABC Pumped Won't Idle
  3. Muffler nut size for OS 46LA stock muffler
  4. OS95 AX vs OS120AX
  5. pump for OS 91 fx
  6. OS 61 Heli - Aircraft ?
  7. OS 40 VR-P Cylinder head
  8. OS .95V In-Cowl Exhaust Header Pipe
  9. servicing 120 Surpass III pump
  10. a 61fx thing
  11. .65LA preset for airbleed
  12. Klotz oil
  13. O.S. .91 surpass II not reaching top RPM
  14. OS 60 with Perry carb and pump, help!
  15. .46 LA Muffler on .46 AX
  16. OS FS120 Surpass-E or FS110a
  17. O.S. 91 Surpass - New - loads up/stops
  18. BGX3500 prop and cone
  19. OLd OS 25 max
  20. NEEDle valve bracket, remote setup BGX
  21. st-15 engine replacement
  22. OS 120 lll Pump
  23. os FS-120 surpass
  24. Problem with FS91SII
  25. FT-120 Gemini II
  26. OS MAX 15 fuel consumption
  27. OS FS-200 distance to engine
  28. up side down
  29. OS81 FSa Pumped Main needle sensitivity
  30. os 55 ax connecting rod problem
  31. Head Bolts on 75 ax
  32. OS fs 48 Surpass running problem
  33. Will an OS 46FX piston/liner fit an OS 40FX engine?
  34. OS Max .61FX Muffler
  35. MOVED: 21204310 .12 buggy head???
  36. OS FL70 front bearing removal
  37. OS Exhaust Headers
  38. MOVED: OS 120 Surpass 2, where do I get spares?
  39. Engine getting too hot
  40. OS 91 FS Pump not pulling fuel. Help?
  41. motor mount problem
  42. OS 46 FX Question for Bax.
  43. os 55 ax carburetor
  44. OS FS110a Low rpms ?
  45. os fs-48 Surpass my first 4 stroker tear down
  46. OS SX 50 H-ring...little help please..
  47. BAX 95AX question
  48. OS 61 FX
  49. OS 120 Surpass FS Series
  50. CV Technology
  51. 61fx or 75fx
  52. Lower Pitched Prop on OS 46FX
  53. Difference between OS E-3020 and E-3070 Silencer
  54. Pumped OS FS-91 surges at full throttle
  55. OS 70 Surpass
  56. FX-25 vs AX-25
  57. OLDER OS FS 90/91 METAL THROTTLE ARM
  58. O.S. 1.20 FS Surpass III
  59. O.S. 1.60FX Pusher
  60. OS 46SF low end needle setting
  61. .46AX frame size
  62. help id this OS engine heatsink
  63. o.s .25xz break in procedure
  64. OS 120 head replacement
  65. OS FS120 SE head question
  66. Fs 90 bearing replacement
  67. OS .10 Piston Pin
  68. error
  69. 46 AX engine
  70. OS .18TM Piston "damage?"
  71. OS 15CV-X - ticking noise
  72. OS 1.08 Tuning
  73. older os 91 fx intregal backplate mounted nva
  74. OS 18tm questions
  75. MOVED: OS FS-90 Manual
  76. Pullstart motor with non-pullstart flywheel
  77. Manual needed
  78. Os 55ax midrange problem
  79. OS 46 AX knock
  80. older os 40fs
  81. Flexible Exhaust pipes
  82. OS Max 60 FP Needle Valve
  83. OS 4 stroke muffler extension ?
  84. OS 91FX tunning problem
  85. OS 120FSIII gasket
  86. Old O.S. FS90
  87. OS FSa-155-P 4 stroke. When?
  88. OS 108
  89. FS-120S III-P CRANKSHAFT PROBLEM
  90. OS FS 91SII w/ pump question
  91. OS FX 160 lean
  92. OS 52 Exhaust Pipe
  93. OS FS - .91 Surpass II Muffler Inlet Pipe Breakage
  94. OS 110a Pitts!
  95. OS 4 stroke 110 prop
  96. OS 1.08 Props
  97. o.s. sf 60 cam an valve setting
  98. OS 55AX keeps cutting out in mid-range
  99. OS 61 CAM COVER NEEDED>>>
  100. o.s. sf 60 cam an valve setting
  101. MOVED: OS 20 FS SOS - part wanted
  102. OS 70 carb
  103. Sirius 7 Radial Four Stroke
  104. OS10LA fuel draw
  105. BGX Installation ?
  106. OS 200 FS Non Pumped Top end issue
  107. OS MAX 15 PARTS WANTED>>
  108. MOVED: I also purchased a Bo-Link 13 inch Funny Car
  109. head screws for os
  110. FR5-300 bearings
  111. OS 61 MAX SF
  112. OS 1.60 FX
  113. 55AX rear bearing?
  114. Timing mark position relative to crank pin on my FS .26 Surpass
  115. OS 90FS stuck pushrod
  116. OS 70 FS Engine
  117. OS 55ax mid range tuning
  118. Air cleaners
  119. Vintage FT-300 Question
  120. OS 50 Hyper and 30% nitro
  121. o.s. 40 la o.s max
  122. 46 FX default idle screw position
  123. FS-120SIII Pumped
  124. An OS 50sx question
  125. OS 91 FS surpassII pumped
  126. MOVED: Drive washer for .40SF
  127. .40FSR
  128. OS 4 cycle 120 III pump Version
  129. Is the 120 III pump bad?
  130. Old ft120 carburator and very old 120 cylinder head.
  131. UPDATED QUESTION - OS 120AX NEEDLE HELP
  132. FS-91S No Pump, Needle Valve Setting
  133. OS .91 Surpass (old) replacement carb
  134. OS.75 Knocking
  135. O.S. maxx 25 fp
  136. O.S. SF FX
  137. OS 26
  138. OS.55AX Thortle problem
  139. OS FS 110 MUFFLER
  140. plane for os.10
  141. 120ax
  142. 75AX/95Ax same Power Box Muffler ??
  143. crankshaft movement after bearing replacement
  144. what engine for OS A3 glow plug.
  145. OS.75AX 90* muffler adapter
  146. Os engine suggestion
  147. OS 46FX Throttle body repair
  148. OS 160 Gemini Propeller Spacer
  149. O.S. 61 sx-h cylinder head replacement
  150. MOVED: OS 90 parts
  151. MOVED: I am getting on a plane to Japan for OS support
  152. OS Engines Target RPM
  153. Rear Bearing replace 46fx
  154. os.18cv-r
  155. Os Alpha 4 strokes Rusted Bearings!!
  156. OS 81a FS props
  157. OS FS-91S needle setting
  158. 120 Gemini II reassembly
  159. OS 91 Surpass Muffler Pipe Breaks...
  160. bgx 3500
  161. .70 Surpass II
  162. rc engine crankcase bearings when to replace?
  163. New To OS Please Help.
  164. OS bearings
  165. Who can tell the the HS position on OS 110-P
  166. noisy engine
  167. 46AX problems
  168. OS 120
  169. MOVED: OS OR MAGNUM 4 STROKE INVERTED
  170. GT55 Propeller Drill Fixture
  171. BGX question for BAX
  172. Is large diameter fuel tubing absolutely needed ?
  173. OS 75AX Break-in Procedure
  174. FS-81a manual
  175. 120 surpass III bogs down on full
  176. MOVED: replacement engine for tamiya nitro thunder
  177. what os engine is compatible with tamiya nitro thunder
  178. OS Ft-160 Twin PROBLEMS
  179. OS FT-300 Exhaust
  180. OS 91 Surpass P
  181. OS 61 FX carb
  182. OS carb change
  183. Engine screams with throttle closed, crack/air leak?
  184. .91 crankshaft part number.
  185. OS FS200 typical RPM?
  186. OS 200FS lost compression
  187. os .18 tm problem
  188. OS61RF pump exploded view
  189. 91fx piston cleaning
  190. turbo plugs
  191. OS FS-80 - anno 1982 version
  192. OS21tm Crank
  193. 91FX getting hot
  194. OS 91 FS Surpass Prop.
  195. OS 91 Surpass II
  196. muffler
  197. O.S. .120 Surpass Retrofit
  198. OS 120 surpass E plumbing??
  199. OS 4 Stroke valve kit
  200. OS 91 S II
  201. Difference between Surpass and Surpass II?
  202. OS 61 MAX SF
  203. OS91 heli engine cutting at mid power
  204. Os 91 Fx
  205. OS 46fx
  206. Fr5-300 sirius breather nipple
  207. OS FL-70 idle problem
  208. Accurate compression test.
  209. OS FS .90 Surpass priming help.....
  210. 55 AX vapor lock
  211. OS 55ax new (15611) vs old (15610)
  212. Problem with OS 61FX
  213. OS .21TM Fuel Question?
  214. Leaking front bearing
  215. OS 46 AX fuel feed problems
  216. Surpass parts interchangeability
  217. OS91FX Props
  218. 65 LA cover plate LEAKS alot
  219. FS120 series iii regulator leaking.
  220. OS50SX ringed
  221. FS-91 Surpass Cylinder Head
  222. l
  223. FS 91S II-P woos
  224. FS110a how to upgrade to pump version
  225. O.S. 46AX Idle speed
  226. OS Aluminum Eng. Mount 904
  227. Which OS max do I have??
  228. 95 AX run in problems.
  229. O.S 120 III pump
  230. Starting
  231. Do New OS 55hz's have difficulties???
  232. .10 FSR Muffler Question
  233. O.S. Muffler
  234. OS .46FXi
  235. Muffler Extension
  236. OS 1.20III pumper
  237. Carb barrel stop screw
  238. Fuel-Oil% for O.S. 18TM
  239. FS-120, Crank Turns, Piston Frozen
  240. OS 61 RF
  241. O.S. FS-200S-P
  242. O.S. 18 TM
  243. dimensions of O.S. 160
  244. Head gasket for 46 AX
  245. OS 160 Fuel tubing/filter/clunk size
  246. 4-Stroke dissasembly
  247. OS 1.60 Advice
  248. OS .61 SF- ABC or Ring?
  249. OS Surpass FS .91 inverted question
  250. where can I get a crankshaft?

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