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  1. OS 120 III runs best at half throttle
  2. OS .25FX leaning out
  3. OS 70 Surpass Idle Problem
  4. OS 65LA A checkered history - Where do I go from here?
  5. Fuel in the RX1.40
  6. OS FT/160 Twin, Opinion Pse
  7. 40 fsr carburetor
  8. Os 50sxh
  9. OS .91 FS Surpass pump upgrade?
  10. 61 SF pump adjustment
  11. OS FT-120 prop
  12. OS reduction gear unit
  13. OS 120 111 pumped
  14. Help with O.S. .46SF
  15. Os 46fx
  16. OS FS-90 Bearing Sizes
  17. FS-26S Reverse rotation
  18. 2 minute motors
  19. OS 1.60 FX noise
  20. os46fx
  21. os fs-26s-cx no start
  22. OS 46 LA won't idle
  23. OS LA.40 thru .65-Remove the color?
  24. TYPE 60C CARB throttle stop screw
  25. Can a 46 FX H Ring be Converted into a 46 FX engine?
  26. OS SX 50 Pricing
  27. OS .48 and .90 4 cycle manual or settings?
  28. temperature?
  29. .91 FS surpass valve lash
  30. Replacement muffler screws
  31. Can't get connecting rod off crank pin. .46 SF
  32. 46FX suddenly dies?
  33. Clicking sound in OS91FS
  34. FS-91 II Surpass mounting and break-in
  35. 1.60 FX does it need a pump?
  36. Pitts muffler available for .25FX
  37. 91FX fuel consumption
  38. Scaled glow plugs - OS No.8 and A3
  39. OS .40la question
  40. Vintage/New/OLD FSR 40
  41. .61 FSR Head Bolt size?
  42. OS 46FX Head Gasket
  43. OS 46FX running problem
  44. converting twin 300 to gas?
  45. OS140RX Carby
  46. Need a threaded exhausted nipple for an OS FS-91
  47. os 61lxh
  48. OS 61SF pumped engine nipple hookup
  49. OS91 valve clearance
  50. OS 15 CV-RX' One-Way Bearing slipping
  51. os 91 fx knock/ping
  52. Gemini 1.20 She No Idle...
  53. OS .90 FS on 30% Heli
  54. 120 Surpass Mk I pump problem
  55. 1.60 FX questions
  56. O.S.45 FSR carb
  57. Os Ft-240
  58. OS 70,Second Request
  59. OS manual _vs_ break-in
  60. Os 160 Pipe Spacer Question
  61. OS 46 FX needle valve
  62. Any special forums existing for the FI motors?
  63. OS52fs
  64. 91FX again (sigh)
  65. OS 46fsr
  66. More power to any engine
  67. getting the most power out of my .91 fs
  68. O.S. 25 FX bogs down with 9X5 and 9X6 props...why?
  69. Old FX 46sf-Need help !
  70. 7M carb in a .61SF
  71. .46FX Bearing Damage???
  72. 48 Surpass muffler?
  73. 61 SF Carb pix
  74. peak torque range for OS FS70
  75. Super Charged FS120
  76. OS 61 RF/RF-P Rear Bearing Problems
  77. Replacement for the 61 RXH
  78. Os.46fx
  79. os 61 fs
  80. Os 108 Rear Bearings
  81. OS Max 40 RC
  82. About 61 RF pump
  83. OS LA Rebuilds?
  84. Proper break in procedure for OS 50 SX MAX
  85. detonation
  86. OS Max FS 26 4 stroke help
  87. Tower 46 / Also OS ???
  88. .61 FSR parts into a .61 SF
  89. Inhibiting after-run oil and O.S. Engines
  90. os 70
  91. Screws.
  92. too much heat for 46fx?
  93. Throttle lever info. needed
  94. Which engine to buy?
  95. Fuel For Use On Os Blackhead .60
  96. os61fs pump
  97. Loose crankshaft on 60FP
  98. 120 fs runs rich backfires
  99. FS-52 Throbbing
  100. from 10% nitro to 15%, break in again?
  101. OS Max 46 FX runs well, then quits...
  102. Os Blackhead 60 Parts
  103. OS FS-61 shutting down
  104. Surpass 91 with Pump Surge Problem
  105. .70 sz-h piston damage
  106. Fuel line attachment for OS Max SF 61 pumped
  107. Trouble with new 46FX
  108. 25LA; how much oil?
  109. Exploded View of Older Pump?
  110. OS/Tower Hobbies website question
  111. Black Residue
  112. OS 25 fp RPM ???
  113. OS FP 35 -needle
  114. Best right mount muffler for OS 46 FX-H
  115. I'm not happy with my new OS .91 FX.
  116. Minimum nitro content 1.6 FX-FI
  117. Engine Timing
  118. OS 140 Surpass IV
  119. Fueling tricks for the pumped 91II?
  120. 7D carb
  121. Attn Bill Baxter or any OS rep that can help me
  122. muffler for os max .10
  123. Fuel Consumption pumped FS91-II
  124. OS .46 LA running problems
  125. OS 12 carburetor retainer
  126. Os 80 2 Stroke - Has Two Glow Plugs And Carb On Back
  127. Os 90 Four Stroke Model 1901 - Parts Needed
  128. Crash Question
  129. OS46Fx problems
  130. Why not make a supercharger for an engine!!!!
  131. You guys make great engines!!
  132. Fuel Type
  133. os 50sx problem.
  134. OS 120 4 Stroke Won't Idle Steady
  135. OS 120 Surpass wth pump Mk I
  136. OS 160 twin flame out
  137. Os 28f
  138. Os Older 25 Not Fp25 - Need Muffler
  139. os.32 low power
  140. old OS 90 2 stroke carb question
  141. O.S.Air Bleed Screw-original setting??
  142. OS Max .50 Model 50FSR-H Change Head?
  143. What year was the FS-60 introduced
  144. Help setting up OS Max FP 40
  145. Os Ft 160
  146. os 61 fx at 90 deg.
  147. Manual OS FS-40 (no Surpass)
  148. Surpass 120 valve timing
  149. Os 160 W/bisson Pitts Muffler
  150. O.S. 91fx
  151. 120-4cycle w/pump
  152. Sending for O.S. Max Service
  153. OS Max 60 sr NEED PISTON RING
  154. O.S. Long Stroke
  155. OS LA Series Problems?
  156. I need power band graphs for OS motors
  157. OS 91 Surpass not surpass II
  158. older os 90 with the glowplug in the front -- need both needle settings
  159. OS 46 FX like to start backward
  160. Prop size for Wankel?
  161. Old Os 120 non surpass with separate valve covers
  162. Please Close - found answer
  163. OS FS-120 III Surpass in Mile-High Denver
  164. CoolPower Green for OS .46 FX?.
  165. OS 32SX-H adjustment question
  166. Help with .61FX, changing needle valve position?
  167. OS 70 4 Stroke
  168. Os 46 Fxh
  169. .32
  170. OS 120 Surpass pump Mk1 or How to Save the pump
  171. OS 70 sv-h Breakin
  172. 4 stroke 70 OS
  173. 12CZ engine help
  174. OS 46fx runs great upright, but not inverted.
  175. OS 61 VF-H GS A-2 reduction Gear Unit
  176. Bearing Ball Missing
  177. OS-.50sx Best prop for speed+thrust??
  178. OS91FSII tap question
  179. Are there any downsides....
  180. Muffler Weight
  181. Fs140-fi
  182. need the distructions
  183. Difference between the OS 70 and 70II
  184. OS 70 II Surpass
  185. O.S 32 fh instructions needed
  186. OS .32SXH Bearing Removal
  187. O
  188. 140 RX EFI sagging
  189. Need Piston Help On Os.15cvx
  190. O.S. 1.20 Surpass II...
  191. OS .70 SZ-H Heli Availability
  192. prop size OS 91 surpass
  193. Mufflers For FT-160?
  194. O.S. .15CV settings ECT.
  195. Broken piston on O.S. .46FX
  196. Royally messed up .46FX!!!
  197. OS 91 FX needle settings
  198. 70FS Split Cotter Removal
  199. OS FS91 fuel flow problem
  200. OS .70 4 stroke problem
  201. OS Gemini 120 prop sizes
  202. Fixing up an old os .35fp need some help
  203. OS and KHB sleeve and Piston
  204. .46 Fx Compresssion
  205. 1.60 FX Bearings
  206. what is a stroke ?
  207. Engine running temperatures
  208. .50sx and 30% nitro
  209. OS 30 Max - S?
  210. Heavy hub on new 4 stk OS 91
  211. FS52s lot of oil
  212. Os 91 / Tuned Pipe Installation
  213. os fs 91 problem
  214. o.s. 120 surpass
  215. Compression ratio of OS .46FX and 1.60FX ?
  216. What RPM range in idel for a 0.46FX ?.
  217. os 70 shuts off
  218. OS46 Engine Quits?
  219. OS 91FS stops abrubtly recently
  220. OS 12tr Heat Sink
  221. Thanks O.S.
  222. 4 stoke engine maintenance
  223. Fan Installation os 50 sxh
  224. OS FS .40C Temps
  225. O.S. FS surpass II conversion from pump to non-pump
  226. Surpass II wont't run
  227. 91FX dimensions needed (not in manual)
  228. OS 140 with 60 pipe
  229. OS 120 Surpass II pumped won't run at full throttle.
  230. 61 ABC problems
  231. carburetor OS#60K
  232. OS 40 SF ABC throttle transition
  233. BGX 3500 Help!!!!!!
  234. HEATED owner of an OVERHEATED 91FX
  235. .46Fx
  236. 40 VF
  237. 0S .46SF - I want more power
  238. 91 SX-H timing info needed
  239. OS max 91 four stroke...no power or compression
  240. OS 1.40 prop
  241. .61 FX wont Idle, please help
  242. Gasket
  243. Setting high speed needle valve!
  244. Probs with .40fx
  245. 60J Carb
  246. os 120 surpass II w/pump
  247. OS50 XXrich@1/4 stick
  248. Os .15 Fp
  249. When to rebiuld?