View Full Version : O.S. Engines Support



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  1. OS FSR/SF Parts Interchange
  2. OS 140 Rx storage
  3. OS 70 leaking???
  4. .15 Fp
  5. OS 52 4 cyl.
  6. os40la
  7. O.s. 61 Sf Prop Nut Size
  8. Os 91 Fs
  9. Os21 Vz-r
  10. os FX silinder pilling ,is this still hapening Cause i have one that did it with only
  11. OS Max 1.2 FS Surpass II pumped
  12. 120 4cycle w/pump
  13. os40fx vs os fs52s
  14. OS 120 Surpass III w/ pump wont advance from idle
  15. .15cvx
  16. O.S. .28f w/2h carb. Why is the head......
  17. old os 120fs
  18. Amcross, somebody... questions about .46 FX break in ...
  19. Marine engine OS 91 VRM, who knows about existance ?
  20. os40LA quits
  21. OS 120 surpass w/ pump
  22. O.S. 61 SF with pump
  23. Flexible Exhaust Pipe with OS 120 surpass III?
  24. Part for OS FS-90 (non-surpass)
  25. OS RZV01B(p)
  26. 160 FX adjusting woes
  27. Pressure Regular on OS120 III with pump
  28. Initial L & H End Carb Settings for .46 SF ABC
  29. OS 10 LA Leaking fuel
  30. FS-70SII Loss of power
  31. O.s. Fs70s Plastic Part
  32. OS .46 V Rear Exhaust
  33. os 46fx back cover assembly??
  34. Os 140rx
  35. O.S. 61RF-P with os header & os tunepipe
  36. Collets and Flywheels for FS40-C
  37. Os .91 Fx
  38. OS 50 Surpass clikcs when turned over
  39. 61 FSR Circa 1975 OILS?
  40. What is the replacement engine for the Max 25 FP?
  41. OS 91 FX in UK
  42. .91 2 Stroke
  43. Back Plate Mounts
  44. head bolts
  45. Which is it?
  46. Identifying OS Max 61 SX-H Subtype
  47. glow plug for 46 fx
  48. OS engine part needed
  49. Factory carb settings on 46fx?
  50. OS Max 40 sr NEED PISTON RING
  51. Os 10 La
  52. Engine Dissassebly Guide
  53. OS FT 160 Carb
  54. Will the crank from my .12 CV work in my new .15 CV-X ??
  55. Old model fx 120 surpass W/ #12 pump
  56. Online source for OS Engine Parts?
  57. OS 46 FX Carb Won't Close Completely
  58. OS50 SX-H 5B carb
  59. Pump priming?
  60. Mid throttle loads up OS160fx
  61. os .28
  62. OS 61 FX needle valve/fuel inlet positioning
  63. Back (cover) plate of 160Fx
  64. Crankshaft Extension for the OS 52 four stroke
  65. .61 FX peeling cylinder
  66. OS Max-H 60 (Max H60) parts needed
  67. OS 46FX Liner problems
  68. FF-240 In need of Manual?
  69. OS FS 120S SP Supercharged
  70. Looking for info on this .20
  71. FS-120 III w/pump silencer
  72. Questions for OS 120 Surpass III
  73. FS 120 pump output
  74. old os 15 max idle prob.
  75. OS 46 FX torque Curve
  76. O.S. 61 max sf
  77. Quick ? on four strokes
  78. OS 120 Thrust
  79. Set Screws in the High Speed Needle
  80. Is it worth fixing an old OS20??
  81. Frustration with 91FX
  82. Need Tuning Help OS MAX CV-X .15
  83. OS 25LA cylinder
  84. what series os 120 surpass
  85. older os120 surpass w/pump
  86. Os 1.40rx ?
  87. 46FX and 32SX break-in : Manuals says 4 cycle them / AmCross says that's a mistake???
  88. OS FT120 exhaust pipes
  89. OS .52 4 stroke
  90. Pump for OS 1.60FX?
  91. Os La 46 Muffler Extention...help!!!!
  92. Os .10 Fp
  93. Metric threads
  94. dual plug head for 1.40 RX
  95. OS .91 FS valve spring collapsed
  96. How to tell if V engine is really DF +
  97. Old OS questions
  98. OS 46 FX Mounting orientation and exaust question
  99. will it fit
  100. FS91 II w/pump question.
  101. O.S. really needs to make a .75 2 Stroke
  102. engine questions?
  103. Os 48 Surpass
  104. Tank pressure with OS160FT
  105. Help with identification of old OS .25 engine
  106. bearings for OS 25FSR + 25F
  107. 13x8 Master Air Screw 3-blade prop for FS91 II
  108. Looking for OS 40SF ABC Specs
  109. OS .46 Idle Mixture
  110. O.s. 65 La
  111. Adapter for flex exhaust
  112. Os .91fx Abc???
  113. Questions 140rx
  114. OS FS 120 Non Surpass
  115. Relocating the crankcase breather on my OLD FS-40...
  116. OS SF 61 carb
  117. Os 10 Fp
  118. OS FT-160 twin
  119. os 160 tuned pipe
  120. OS 50SX-H Ring
  121. OS 1.40RX help
  122. OS .46FX not running well. Outside temp the problem?
  123. Does Slimline make Pitts Muffler W/Smoke for OS 160
  124. Os Max 40 Sr
  125. OS 90 / 91 FS bearing replacement proc.
  126. ? about OS 40LA
  127. OS91 4/c backfiring on each flip to start
  128. os 91 'c' spec heli engine
  129. os .35 help needed
  130. Service question
  131. Os 160
  132. Need Piston Ring for OS 160FX
  133. OS 25 quits
  134. .50 SX Ring engine
  135. FS 91 V FS 91 pumped
  136. Need help with fuel for O.S. 91 Surpass
  137. 46 FX Different pistons?
  138. OS 91 Surpass I
  139. is this OS 120 surpass I -sp running?
  140. Low end needle drift possible ?
  141. OS 91 4 stroke bearings.
  142. Os 140 Fi
  143. OS 91 4 Stroke Carb Settings
  144. Trying to find a rear bearing for 46fx...ARRRGH!!
  145. OS .90 FSR Specs/Manual
  146. OS 7L carb adjustment
  147. Clockwise engine
  148. OS .25fx funny noise
  149. O.s.91 4stroke
  150. Another 120 Question
  151. Futaba FP-T7UAP PCM/PPM
  152. OS 50 Reviews
  153. Original 120FS engine
  154. compression ratio for os 46 fx ?
  155. 61FX rpm on ground
  156. problems with my new os 70, 4 stroke
  157. 61?
  158. 91 FX Question
  159. FS-91SII-P Muffler?
  160. Os Ft 1.20
  161. frozen barrels on #21 carbs
  162. os .61fx modification
  163. OS 120 pumped won't run
  164. carburetor body
  165. FS-30 Surpass weight
  166. 46FX runnning a 3-Blade Prop
  167. OS .91-VR Ducted Fan
  168. Os Ft160
  169. O.S. 91fx
  170. O.S. 50 SX carb
  171. FS-120 Surpass II pumped
  172. OS 70 Broken valve spring
  173. Os 160
  174. Os .61fx
  175. OS warranty and fuel Q.
  176. OS Max .10 Starting
  177. Os .91 Fx
  178. disc. engine
  179. OS 91 FS w/pump
  180. OS 1.60 crankcase tap
  181. 120 surpass W/pump
  182. OS Carb on TT Pro 46
  183. OS 120 Surpass
  184. Cline and Associates Regulators
  185. OS 90 4 stroke engine
  186. Os 61 Rf-p
  187. Schneurle porting
  188. OS 90FS Manual
  189. OS .46SF parts
  190. OS 160 junk???
  191. OS Max 30
  192. 46 max idle
  193. New OS 46FX Peeling Question
  194. 40 LA Changes
  195. Surpass 70MKII Inverted
  196. Upside down?
  197. O.S. 26 Four Stroke
  198. Engine Spec
  199. max rpm for 61fx
  200. #21 Carbs
  201. Dirt Damage
  202. Leaks
  203. os 46 fx max HELP
  204. OS-52 four stroke
  205. OS 160FX Stock or Pitts Muffler
  206. Fx 160 in G202 GP
  207. Inverted OS 25 fx (4 engines, B-17)
  208. OS 120 Surpass II
  209. Os .35 FP--need a head gasket.
  210. Os 61 Sf
  211. Tower muffler for 46FX
  212. Os50
  213. Tank level/clunk for a .40 FP
  214. Ft-300
  215. Muffler for OS 160 fx
  216. Surpass 120 w/pump
  217. Pumped FS 70?
  218. 46 FX Exhaust
  219. Air Bleed Adjustment LA 46
  220. 1.6FX - NIB crank won't turn
  221. Submerged O.S. F.S. 52 Four Stroke
  222. OS 1.60FX power?
  223. Pumped .61SF fuel line connections
  224. FS 90 backfire and needle valve problems
  225. OS 160 fx port timing
  226. os fx .61, pitts problem
  227. os surpass 70
  228. Carb setting on 21RG
  229. OS 25 needs more grunt
  230. Super heated OS .91FX, AMC:Help!
  231. Ziroli B-25 (101) approx 35 lbs
  232. Os .91fx
  233. My OS 10 wont run right
  234. HELP! My engine won't run!
  235. os52 exhaust
  236. O.S 120 II pumped
  237. More RPM's
  238. FX 46 making me nutz
  239. 18x6W or 20x6 for 1.60 FX
  240. 40LA Muffler fasteners
  241. C/L to RC conversion
  242. OS 46 & 61 SF ring replacement
  243. OS 70 Surpass
  244. FS-91 Surpass
  245. What is the expected life of an FX 46?
  246. rebuilding
  247. OS FS-70 repair
  248. OS 32 F Helicopter
  249. OS .46fx help....
  250. Is there a new OS 91???

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