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  1. 50SX Overheating - Carbon??
  2. OS 46AX - can it be mounted inverted
  3. A3 or #8 OS Glow Plug
  4. Effects of lower nitro on 91FX
  5. 46FX Cone Baffle
  6. OS 46 VX-DF Fuel Question
  7. 90fs w/pump ??
  8. old o.s. engine
  9. OS Fs40S
  10. 70A carb changes??
  11. ultimate 70 pump
  12. using a tach, where should one set a .46ax?
  13. OS MAX 60 SR
  14. 46 fx looking bad
  15. O.S. 91FX not having enough power
  16. help with OS carb 4a
  17. After-run procedures
  18. OS 70 Ultimate IDLE setting
  19. os 91sII - break in question
  20. OS DTX .18
  21. OS FS 70 Ultimate Adjustment.
  22. OS 5O SX BUBBLES
  23. OS 91FS Surpass Muffler
  24. FS 120 two covers
  25. O.S. .12 TR Pinging Sound
  26. Tank location for Inverted 46FX
  27. OS 120 FS Series
  28. New engine
  29. .18CV-RX
  30. O.S. 120 Type I Surpass w/pump Questions
  31. Leaking Afterrun Oil
  32. OS50 SX LOSS OF POWER
  33. Question on Post-crash Maintenance
  34. tank mounting on 91fx
  35. Timing an OS 91FS Surpass
  36. OS .91 Head Bolts
  37. OS 140RX
  38. OS FS 70 needle valve.
  39. 91FX Problems
  40. What size prop for a 46 FX
  41. FS-91sII-P
  42. Pressure Fitting for OS 1.6 FX
  43. O.S 120 SP
  44. 15 cv-x hyper, difficult to turn over
  45. OS .46 SF-P : what is this engine?
  46. 1983 FS-90 advise
  47. os70 surpass
  48. OS Engines
  49. OS BGX-1 Tuning
  50. what glow plug with 30% Nitro & 46FX?
  51. Typical OS 91 FX RPM Range
  52. OS 40 LA Carb Settings
  53. OS 160 FX
  54. After run oil?
  55. OS 52 Surpass won't idle w/o glow-plug
  56. I need parts for my Ft-120
  57. ALTERNATIVE SOLUTION OF 46SX-PISTON SLEEVE
  58. 91 FX bearing question
  59. Trouble starting/idling O.S. .15 CV-X
  60. New OS 70 FS power vs. LA .65
  61. Sensitive needle adjustment.
  62. MOVED: OS FS70 full throttle problem
  63. Damaged OS 91 Surpass w/ Pump
  64. FS70 Surpass 2 muffler question
  65. Which prop for 91FX pulling 8.5 lbs Extra?
  66. 1.6FX carb alternative
  67. OS- .50sx Surging at full thottle? Help!!
  68. OS 61 MAX RF and Hatori 650 pipe
  69. OS 45 FSR ABC Bearings
  70. MOVED: OS Radial
  71. Head Shims
  72. OS 61 FX / Mac Tune Pipe and header
  73. OS .46 FX Break-in
  74. Oilly mess or normal.
  75. OS 120 III pumped
  76. OS .46AX in Funtan S 40
  77. 40/46 LA Parts Pack
  78. regulator leak - FS 91 Surpass with pump
  79. 40/46 LA Carb
  80. Needle Valve for OS 120 Surpass I
  81. Supercharged OS FS 120 SP
  82. FUEL PUMP FOR O.S. BGX-1
  83. Need help tuning my OS61RF-P
  84. OS 7D carb
  85. 52 Surpass with Perry VP30 Pump
  86. Pressure nipple thread size
  87. Bearing replacement 0S 120
  88. FS 70 Ultimate won't run
  89. 91 SX-H & 91 FX rear bearing
  90. .46 FX won't stop running
  91. os .61vrm and cmb .90 tuned pipe
  92. Old Engine Instructions
  93. OS .61 SF (Ring)
  94. OS 1.6 FX W/PERRY PUMP(REGULATED)
  95. OS 61FX
  96. OS 70 - looks fine, won't start
  97. OS FT-300
  98. 0S.46 max in nexstar
  99. 1.60FX on FAI fuel
  100. OS-140RX-FI adjustments...
  101. 1.4 vs. 1.6
  102. cylinder liner not fitting
  103. 91 FS surpass
  104. % Oil suitable for OS
  105. 46 SF shuts off
  106. OS 1.20 with pump
  107. help to find parts
  108. OS 120FS III Breaking In?
  109. FS .52 reverse rotation
  110. OS 91 FX idle question
  111. OS .50-SX Air Bubbles Remote Needle????
  112. New engine
  113. Parts for O.S. .21EX
  114. 91 fx
  115. OS 7M carb
  116. my O.S RG .21 max will NOT Run
  117. 40FP/40LA carb swap?
  118. OS .52 four stroke over prop
  119. os .21 rg
  120. Kyosho mount for OS engine question
  121. OS BGX-1 Stock Muffler Question
  122. OS 120 FS with pump
  123. OS 300 twin problems
  124. Piston Corrosion???
  125. 50SX RPM ?
  126. breaking in a .12 cv-x
  127. FS-91S II vs. FS-91S II FI where's the benefit?
  128. 52 FS Surpass
  129. OS 120FS Surpass Type II
  130. osfs120 sc
  131. OS 61 VRM Specs and Info Please
  132. How to remove FS-120 piston
  133. 40 FP NEEDLE VALVE ASSEMBLY?
  134. 120 pump , is clogged, how do I cleaned?
  135. 2-needle carb for FS-26-C
  136. 61RF-P ABC Running in problems
  137. OS FS-70 Ultimate Idle Problems
  138. OS .61 FX problem
  139. OS 140 RX/FI starting problem
  140. OS FS-70 Ultimate Idle Problems
  141. OS 40 FP
  142. OS 70 Ultimate, Variance
  143. 46 SF Needle
  144. Another FS-26 question
  145. OS 1.60FX Muffler Problem
  146. Oils
  147. fan unit
  148. old engine
  149. 46SF lacking power
  150. Muffler swap? OS .91 surpass/ 1.20 surpass
  151. replacement o-ring help
  152. OS 70 Ultimate Running in
  153. 46 LA
  154. Replacing the stock muffler with a copper pipe
  155. Difference between FS-120 III, FS-120 II and the FS-120 Surpass? confused?
  156. 46 FX Runtime
  157. OS50SX Surging
  158. Exhaust options for the FS-26C
  159. os no7 glow plug
  160. OS FS-70 Ultimate Bubbles in fuel line
  161. OS 50SX Glo Plug Issue ?
  162. O.S. 91FSII bearings
  163. OS LA .46 CARB
  164. vz tuning chasing
  165. 25 LA factory air bleed setting
  166. 91 or 1.08 , Thats the question?
  167. O.S. 1.08 Problem
  168. O.S. Max glow plug
  169. FS 70 Surpass (not Surpass II)
  170. OS 1.20 surpass III w/pump fuel tank
  171. OS .21 RZ-V01b
  172. OS 120 Surpass-E exhaust header
  173. 21RG Temps
  174. FS-26c 4-stroke first start
  175. 120 Surpass
  176. 0s 140rx parts
  177. 91 FX Super Muffler E-4030 Baffle
  178. OS91 surpassII
  179. 4-stroke buggy motors
  180. Older O.S. 91 FSR
  181. OS 1.60 FX - engine stoppages
  182. OS Rotary
  183. OS .40 looses power...
  184. OS 300 Twin Prop/RPM
  185. 46FX Crankcase Leak
  186. OS 120 Surpass-E
  187. O.S. FS-120S-SP
  188. C-13 Carb Setup
  189. OS bgx on no nitro?
  190. OS120 Pumped Quiting
  191. FS .26 4 stroke carb question
  192. New OS32 sx-H engine frozen stiff
  193. OS 1.40 rear bearing rust
  194. os max question
  195. Needle valve (interchangeability)
  196. Help! OS 70 Surpass - No Power
  197. OS 91fs prop
  198. Need help - OS FS 70 Ultimate
  199. OS 5b carburetor screw
  200. OS 140 RX
  201. Prop for OS160
  202. os 90 max muffler
  203. OS MAX .40 SF Two Stroke
  204. Perry Pump on FX 160
  205. loss power
  206. OS .91 4 stroke pumped or not?
  207. OS40FS
  208. OS FS-40 valve gap
  209. OS Max-H .80
  210. Old OS120FS
  211. OS 91 FX
  212. OS 32 SXH crankshaft not spinning freely
  213. FS .26 4 stroke reassembly help needed
  214. Air Filter for O.S. FS-120 III Surpass w/Pump
  215. Need info for old fs-90
  216. klotz oil additive amount question
  217. FS-40 Surpass part numbers
  218. O.S. Surpass 1.20
  219. os 160 twin
  220. os 91 fx muffler
  221. Spare Parts for OS
  222. What temp is too hot? OS 70 H in Raptor 60
  223. OS .46AX Warranty Question
  224. help please...
  225. O.S. FS-70 II Surpass starts backwards?
  226. OS40 FS
  227. 502 Tuned pipe system..
  228. OS 90 FS - inverted tuning issues
  229. OS 32 Heli - Con-rod
  230. OS 1.60 Fat in the Middle????
  231. OS 12 CV-RX wont turn
  232. OS Max FS-70 Surpass help needed
  233. Instruction Manual for OS Max H60GP
  234. Wankel PI questions
  235. 61SF
  236. Idle problem
  237. os46fx quits running
  238. OS FT120 II disassembly
  239. .46FX reassembly help
  240. OS70FS clicking
  241. OS50SXH
  242. O.S. FS 120SIII help!!!
  243. 12 TR (P) T max allowable Temp
  244. 'running in' for a .91 VRDF
  245. please help my OS.61 max fx
  246. OS50SXH difficulty tuning
  247. OS50SX Performance Delta
  248. fx25 piston and liner replacement
  249. os max 90 four stroke
  250. OS FS-120S-E Won't Run