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

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