View Full Version : O.S. Engines Support



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  1. MOVED: OS 200fs Cline or Perry?
  2. 70 4 stroke
  3. FSa Lineup
  4. FX 1.60 annoying problem
  5. OS 91 FXGlow plug
  6. FX and AX ...
  7. 55 AX carb disassembly
  8. APC 13-4W to big for 55AX?
  9. OS 7L carb reassembly?
  10. OS 120FS II pumped
  11. Letters on bottom of mounting flange
  12. Another AX46 Question
  13. OS 46 AX
  14. O.S. 61 RF
  15. O.S. ft160 twin Crankcase slime routing/burning?
  16. OS61SF carburettor problem
  17. How do I take my carb off?
  18. 18tz(P) crank into a 18tm
  19. Need OS Max 40 SR Muffler
  20. MOVED: 160fx max and smoke?
  21. OS 61 SF ABC
  22. Stock OS 160 muffler in Yak
  23. os200-p fuel tube connection ?
  24. OS 120 Surpass III losing power
  25. OS 61 Max Fp Fuel Issue
  26. O.S. 120 fs rebuild
  27. os bgx 3500 break in?????
  28. FS-120 Series II Pumped surging
  29. Fuel for Os .21 RF-B
  30. OS FS 91 SURPASS
  31. Will a new 91 w/pump bolt up where a 91 Surpass w/o pump was?
  32. vspec .21 problem
  33. OS21TM Question.
  34. OS 160 AX?
  35. .91 FX straight pipe??
  36. os 300 enought power?
  37. S.O.S. OS FS-40 Surpass camshaft questions. Help needed!!!
  38. engine mount specs
  39. OS 18 TZ
  40. OS 2.00 Lackluster performance
  41. Obsolete OS Engine Information
  42. OS 61VF ABC GS A-1
  43. OS .61 4 stroke
  44. 18TZ Can't go past 1/2 throttle
  45. OS FS-70S needles bottoming out
  46. .91 FX Leaks Fuel at Drive Hub
  47. FS61 Silencer
  48. OS-46SF "Reversed"?
  49. OS IL-300 4 Cylinder - Fuel Setup
  50. OS .46AX running too rich
  51. Max distance between OS91FX and tank
  52. OS 55AX engine & plug life?
  53. FS-26 AND FS-30
  54. Stock 91FX muffler Q
  55. Break in?
  56. OS200-P getting 6500rpm ONLY....
  57. Os 55 Ax dying
  58. OS 3500 BGX-1 problem
  59. 91 Surpass metallic engine knock at half throttle?
  60. v-spec issues
  61. PD-04 Diaphragm Fuel Pump
  62. FS 40 Stuck valves
  63. OS 1.20 4-Stroke Questions
  64. .55ax noise
  65. OS MAx .10 ?
  66. OS FS 91 w/pump peak RPM
  67. os91fx and os61fx
  68. OS 25 FX
  69. will there be any new OS engine soon?
  70. os .18
  71. Figured it out..... Not worth reading
  72. OS FT-160 leaking fuel
  73. MOVED: Cline vs. Perry vs. Iron Bay
  74. 91 FX backplate ?
  75. Best replacement for OS .46 AX
  76. 30vg warranty
  77. OS 120 AX, No response to needle valve adjustments
  78. os 91 fx rebuild
  79. Spin start adapter for OS .21 V-spec
  80. MOVED: Good .12 engine
  81. exhaust on 55ax
  82. Letters code below mounting lugs
  83. OS 91 RUNNING GOOFY
  84. what is a os cz hirobo
  85. Ideal .55ax rpm range
  86. O.S. CV-R bump start conversion
  87. delete
  88. 1.60 prop sizes
  89. OS .52 & .56 exhaust thread pitch.
  90. os 120ax + remote tank = :(
  91. os 120ax
  92. exaust 4 stroke
  93. O.S. 61 F/S Touchy high speed needle
  94. Old but new OS 91 surpass with choke valve
  95. The Amazing 120AX
  96. Need upgrade carb on OS-FL70
  97. Os FS30 muffler and needle valve extensions
  98. 91 surpass prop size
  99. torque specs
  100. FS-200s and FS-200u; what's the difference?
  101. OS Surpass ii idle problem
  102. MOVED: O.S. FS 120
  103. MOVED: OS 200 for Pattern?
  104. OS FS-48 Replacement Head
  105. *OS 120AX & Nitro Content*
  106. Inverted OS FL 70 won't lean out.
  107. O.S. FS-120 III Surpass 4-Stroke with pump "NEED HELP"
  108. os max 140 rx
  109. need some help with my 18tm
  110. O.S.120 Carby does any body Know
  111. OS H60FGR Blackhead
  112. Afterrun oil? O.S. FS-91 w/pump
  113. O.S. FS-91 w/pump, peak RPM?
  114. oil content / FS-91 II w/pump
  115. os 56 fsa
  116. 40 LA Fuel Inlet Fitting Came Loose
  117. Possible largest prop for OS .46 AX
  118. *OS 120AX Bearings*
  119. os 46 ax running a 20000 rpm
  120. rywill these engines fit??
  121. os rz max
  122. Hyper 50 damage
  123. .91 FS II Surpass leaking and losing power
  124. 52 Surpass Tappet Gap
  125. OS21TM air leak?
  126. O.S. 46FS piston ring
  127. os 91fs no compression
  128. 1.20ax prop question
  129. FS-70 Ultimate fix
  130. MOVED: O.S. 61 RF - Tune pipe - Hanno II Sleeve ABN/ABC
  131. OS FL70 four stroke
  132. O.S 1.20FS Question?
  133. OS Max 25 Sticky
  134. OS 1.20 FS runs erratic
  135. OS .61 FX
  136. 55AX sensitive needle
  137. FS120 Surpass II pumped low speed needle setting
  138. FS-120 Surpass III Engine w/Pump What fuel?
  139. Where can I send the engine back in the UK?
  140. v spec carb
  141. few questions on the .21 V-Spec
  142. OS 1.20 pump regulator
  143. AX .55 Low Speed factory setting
  144. varnish on 6 month old engine
  145. One way bearing slipping
  146. SF .46P setup
  147. OS FS91 II ticking
  148. 18CV-RX in Tmaxx
  149. OS 32SX air leak problem
  150. 91FX break-in with Bisson muffler
  151. Question on OS 75 AX
  152. Head Shim for 21TM w/30% Nitro
  153. OS61SX-WC, changed fuel to lower nitro
  154. .18tz hard to start
  155. OS FS-91 / w Pump, should I avoid castor oil?
  156. 55 AX perry pump ??
  157. OS61Fsr
  158. OS FS-91 / pump; runs when needle valve fully closed?
  159. What is the part number for the most updated needle valve for a 91FX
  160. Idea to Secure Muffler on OS FS91 II - Is it OK?
  161. os 160 FX woodruf key
  162. 91 FX Leans Out?
  163. Exhaust connection threads
  164. 18tz w/ 18tm parts
  165. .18 cvr-x Stalling
  166. OS FT-160 Gemini Tank question
  167. 18tm
  168. O.S. 1.60 Back Plates
  169. OS Max .91 Surpass 4-Stroke engine - Pipe & Muffler Question:
  170. .91 Surpass crankcase tap
  171. Question about O.S. 46 AX carb
  172. OS FS-200S Pump
  173. WHICH PROPELLER FOR OS 91 DF?
  174. OS-120AX quits
  175. Should I send my .55ax in?
  176. O.S. 21VZ-B V-Spec Buggy/21J
  177. How to take cooling head off .21tm?
  178. New OS 81 4-stroke
  179. OS 52 Four Stoke Break-In
  180. Good plugs for the .21TM?
  181. OS 70 Ultimate carb question / solution
  182. OS 20 FP
  183. Gasket Set cross reference?
  184. o.s. .18tm carb?
  185. 15CVR-X and 18CVR-X Starting shaft interchangable?
  186. OS18TM question
  187. Missing Screw Size?
  188. FT 160 Gemini
  189. MOVED: Magnum XLS 52
  190. 91 Surpass II pump problems (HELP)
  191. New O.S. 81 4 stroke [ abit warm ]
  192. 3D prop for .46 AX??
  193. OS FT-160 valve adjustment
  194. 46AX - Fine grit in filter after break in
  195. O.S. 91 C-Spec conversion to acft.
  196. OS 120 surpass III w/pump
  197. OS18TM problem
  198. 55ax muffler
  199. OS 91 FX Muffler
  200. Hyper 50 Blown Piston again!!
  201. os 18tz head
  202. 46AX Liner issues
  203. 120 AX Break-in Prop
  204. 1989 OS MAX 46 SF-S abc STARTING PROBLEM
  205. rpm surging 4stroke 52 surrpass
  206. OS18 TZ Pbs
  207. 120 ax max recommended rpm
  208. 50SX-H Hyper rich low end
  209. os 70 surpass, stopping
  210. FL70 muffler pressure to the sump
  211. FL-70 loss of power
  212. OS 52 4 stroke will not idle
  213. OS FS-52 4stroke in hot weather.
  214. vspec problem
  215. OS 200 FS settings ??
  216. In need of a 70 Surpass II crankcase - Discontinued?
  217. OS 61 FX dead sticking
  218. OS FS61 head screws
  219. AX55's
  220. O.S 55AX vs. 61FX?
  221. O.S. 61 Question?
  222. where are os .21 vzb manuals online?
  223. Will gasoline damage O rings?
  224. Which engine is that???
  225. Fitting Prop to an OS FT 240 (300)
  226. OS .32 sx cylinder head???
  227. 55 AX Mid Range
  228. OS FS61 cam bearing removal
  229. OS 21 VG stall after half tank
  230. replacement piston ring for OS MAX 50 SX
  231. OS 91FX Problem
  232. FS-1.20S III
  233. OS 18 cvr won't say running?
  234. OS18TZ-TX crankshaft into 18TM
  235. Bearing replacement OS 1.20FS Surpass
  236. 91 surpass vs 91 surpass pumped
  237. 91 surpass factory mixture setting
  238. O.S. .18 cv-rx
  239. OS 91FX Break-In help
  240. 4 cycle assembly question
  241. FR5-300 Sirius radial being discontinued?
  242. A3 plugs vs the RCAT glow starter
  243. Motor mount for OS 200U
  244. OS Carb
  245. idling screw
  246. Which fuel for both O.S. FX25 & O.S. FS56a
  247. Honing a 46 FX
  248. OS70 backfiring
  249. Minor pitting on piston.
  250. OS 61FX lowspeed Needle valve location?

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