View Full Version : O.S. Engines Support



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  1. OS 61SF pumped engine nipple hookup
  2. OS91 valve clearance
  3. OS 15 CV-RX' One-Way Bearing slipping
  4. os 91 fx knock/ping
  5. Gemini 1.20 She No Idle...
  6. OS .90 FS on 30% Heli
  7. 120 Surpass Mk I pump problem
  8. 1.60 FX questions
  9. O.S.45 FSR carb
  10. Os Ft-240
  11. OS 70,Second Request
  12. OS manual _vs_ break-in
  13. Os 160 Pipe Spacer Question
  14. OS 46 FX needle valve
  15. Any special forums existing for the FI motors?
  16. OS52fs
  17. 91FX again (sigh)
  18. OS 46fsr
  19. More power to any engine
  20. getting the most power out of my .91 fs
  21. O.S. 25 FX bogs down with 9X5 and 9X6 props...why?
  22. Old FX 46sf-Need help !
  23. 7M carb in a .61SF
  24. .46FX Bearing Damage???
  25. 48 Surpass muffler?
  26. 61 SF Carb pix
  27. peak torque range for OS FS70
  28. Super Charged FS120
  29. OS 61 RF/RF-P Rear Bearing Problems
  30. Replacement for the 61 RXH
  31. Os.46fx
  32. os 61 fs
  33. Os 108 Rear Bearings
  34. OS Max 40 RC
  35. About 61 RF pump
  36. OS LA Rebuilds?
  37. Proper break in procedure for OS 50 SX MAX
  38. detonation
  39. OS Max FS 26 4 stroke help
  40. Tower 46 / Also OS ???
  41. .61 FSR parts into a .61 SF
  42. Inhibiting after-run oil and O.S. Engines
  43. os 70
  44. Screws.
  45. too much heat for 46fx?
  46. Throttle lever info. needed
  47. Which engine to buy?
  48. Fuel For Use On Os Blackhead .60
  49. os61fs pump
  50. Loose crankshaft on 60FP
  51. 120 fs runs rich backfires
  52. FS-52 Throbbing
  53. from 10% nitro to 15%, break in again?
  54. OS Max 46 FX runs well, then quits...
  55. Os Blackhead 60 Parts
  56. OS FS-61 shutting down
  57. Surpass 91 with Pump Surge Problem
  58. .70 sz-h piston damage
  59. Fuel line attachment for OS Max SF 61 pumped
  60. Trouble with new 46FX
  61. 25LA; how much oil?
  62. Exploded View of Older Pump?
  63. OS/Tower Hobbies website question
  64. Black Residue
  65. OS 25 fp RPM ???
  66. OS FP 35 -needle
  67. Best right mount muffler for OS 46 FX-H
  68. I'm not happy with my new OS .91 FX.
  69. Minimum nitro content 1.6 FX-FI
  70. Engine Timing
  71. OS 140 Surpass IV
  72. Fueling tricks for the pumped 91II?
  73. 7D carb
  74. Attn Bill Baxter or any OS rep that can help me
  75. muffler for os max .10
  76. Fuel Consumption pumped FS91-II
  77. OS .46 LA running problems
  78. OS 12 carburetor retainer
  79. Os 80 2 Stroke - Has Two Glow Plugs And Carb On Back
  80. Os 90 Four Stroke Model 1901 - Parts Needed
  81. Crash Question
  82. OS46Fx problems
  83. Why not make a supercharger for an engine!!!!
  84. You guys make great engines!!
  85. Fuel Type
  86. os 50sx problem.
  87. OS 120 4 Stroke Won't Idle Steady
  88. OS 120 Surpass wth pump Mk I
  89. OS 160 twin flame out
  90. Os 28f
  91. Os Older 25 Not Fp25 - Need Muffler
  92. os.32 low power
  93. old OS 90 2 stroke carb question
  94. O.S.Air Bleed Screw-original setting??
  95. OS Max .50 Model 50FSR-H Change Head?
  96. What year was the FS-60 introduced
  97. Help setting up OS Max FP 40
  98. Os Ft 160
  99. os 61 fx at 90 deg.
  100. Manual OS FS-40 (no Surpass)
  101. Surpass 120 valve timing
  102. Os 160 W/bisson Pitts Muffler
  103. O.S. 91fx
  104. 120-4cycle w/pump
  105. Sending for O.S. Max Service
  106. OS Max 60 sr NEED PISTON RING
  107. O.S. Long Stroke
  108. OS LA Series Problems?
  109. I need power band graphs for OS motors
  110. OS 91 Surpass not surpass II
  111. older os 90 with the glowplug in the front -- need both needle settings
  112. OS 46 FX like to start backward
  113. Prop size for Wankel?
  114. Old Os 120 non surpass with separate valve covers
  115. Please Close - found answer
  116. OS FS-120 III Surpass in Mile-High Denver
  117. CoolPower Green for OS .46 FX?.
  118. OS 32SX-H adjustment question
  119. Help with .61FX, changing needle valve position?
  120. OS 70 4 Stroke
  121. Os 46 Fxh
  122. .32
  123. OS 120 Surpass pump Mk1 or How to Save the pump
  124. OS 70 sv-h Breakin
  125. 4 stroke 70 OS
  126. 12CZ engine help
  127. OS 46fx runs great upright, but not inverted.
  128. OS 61 VF-H GS A-2 reduction Gear Unit
  129. Bearing Ball Missing
  130. OS-.50sx Best prop for speed+thrust??
  131. OS91FSII tap question
  132. Are there any downsides....
  133. Muffler Weight
  134. Fs140-fi
  135. need the distructions
  136. Difference between the OS 70 and 70II
  137. OS 70 II Surpass
  138. O.S 32 fh instructions needed
  139. OS .32SXH Bearing Removal
  140. O
  141. 140 RX EFI sagging
  142. Need Piston Help On Os.15cvx
  143. O.S. 1.20 Surpass II...
  144. OS .70 SZ-H Heli Availability
  145. prop size OS 91 surpass
  146. Mufflers For FT-160?
  147. O.S. .15CV settings ECT.
  148. Broken piston on O.S. .46FX
  149. Royally messed up .46FX!!!
  150. OS 91 FX needle settings
  151. 70FS Split Cotter Removal
  152. OS FS91 fuel flow problem
  153. OS .70 4 stroke problem
  154. OS Gemini 120 prop sizes
  155. Fixing up an old os .35fp need some help
  156. OS and KHB sleeve and Piston
  157. .46 Fx Compresssion
  158. 1.60 FX Bearings
  159. what is a stroke ?
  160. Engine running temperatures
  161. .50sx and 30% nitro
  162. OS 30 Max - S?
  163. Heavy hub on new 4 stk OS 91
  164. FS52s lot of oil
  165. Os 91 / Tuned Pipe Installation
  166. os fs 91 problem
  167. o.s. 120 surpass
  168. Compression ratio of OS .46FX and 1.60FX ?
  169. What RPM range in idel for a 0.46FX ?.
  170. os 70 shuts off
  171. OS46 Engine Quits?
  172. OS 91FS stops abrubtly recently
  173. OS 12tr Heat Sink
  174. Thanks O.S.
  175. 4 stoke engine maintenance
  176. Fan Installation os 50 sxh
  177. OS FS .40C Temps
  178. O.S. FS surpass II conversion from pump to non-pump
  179. Surpass II wont't run
  180. 91FX dimensions needed (not in manual)
  181. OS 140 with 60 pipe
  182. OS 120 Surpass II pumped won't run at full throttle.
  183. 61 ABC problems
  184. carburetor OS#60K
  185. OS 40 SF ABC throttle transition
  186. BGX 3500 Help!!!!!!
  187. HEATED owner of an OVERHEATED 91FX
  188. .46Fx
  189. 40 VF
  190. 0S .46SF - I want more power
  191. 91 SX-H timing info needed
  192. OS max 91 four stroke...no power or compression
  193. OS 1.40 prop
  194. .61 FX wont Idle, please help
  195. Gasket
  196. Setting high speed needle valve!
  197. Probs with .40fx
  198. 60J Carb
  199. os 120 surpass II w/pump
  200. OS50 XXrich@1/4 stick
  201. Os .15 Fp
  202. When to rebiuld?
  203. OS .10 Head and Back Plate Screw Sizes
  204. Need a new crank for and O.S.
  205. Removing Bearings and Crankshaft from 40 SF ABC
  206. os 91fs
  207. Os 15
  208. OS Max FP .40 Manual
  209. Os 50 Sxh
  210. Looking for manual
  211. OS 120 Carb
  212. Need OS part number...
  213. OS-30 weight spec is wrong!
  214. O.S. Surpass 30
  215. OS91 C-Spec
  216. 140RX spitting bearing!!!
  217. OS Engine Specs???
  218. fs 60 open rocker
  219. Engine Purchase Questions
  220. O.S. Buggy Engine, Can I convert to Pull start?
  221. Should I replace the case on a os 61?
  222. OS FSR/SF Parts Interchange
  223. OS 140 Rx storage
  224. OS 70 leaking???
  225. .15 Fp
  226. OS 52 4 cyl.
  227. os40la
  228. O.s. 61 Sf Prop Nut Size
  229. Os 91 Fs
  230. Os21 Vz-r
  231. os FX silinder pilling ,is this still hapening Cause i have one that did it with only
  232. OS Max 1.2 FS Surpass II pumped
  233. 120 4cycle w/pump
  234. os40fx vs os fs52s
  235. OS 120 Surpass III w/ pump wont advance from idle
  236. .15cvx
  237. O.S. .28f w/2h carb. Why is the head......
  238. old os 120fs
  239. Amcross, somebody... questions about .46 FX break in ...
  240. Marine engine OS 91 VRM, who knows about existance ?
  241. os40LA quits
  242. OS 120 surpass w/ pump
  243. O.S. 61 SF with pump
  244. Flexible Exhaust Pipe with OS 120 surpass III?
  245. Part for OS FS-90 (non-surpass)
  246. OS RZV01B(p)
  247. 160 FX adjusting woes
  248. Pressure Regular on OS120 III with pump
  249. Initial L & H End Carb Settings for .46 SF ABC

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