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  1. OS 91 FS w/pump bogging down!
  2. FS-70 rebuild??
  3. o.s. o.b. break in
  4. FL70 Backfire problem HELP?? please???
  5. 25VF-DF on Viper Q-500
  6. OS Nipple Mounting
  7. marine 4-strokes?
  8. 180 header for the OS 18TZ -TX
  9. OS 120AX
  10. OS 55AX carb problem
  11. OS 52 and 70 surpass
  12. Fuel line size
  13. 91 surpass II lsn
  14. 18x6 prop for os 1.60??
  15. OS 91FX
  16. Can you Identify my OS120?
  17. 91 Surpass Bearings
  18. OS 91 4 stroke
  19. OS 160 Fx
  20. os. 18 tz won't start
  21. Tuned Pipe Confusion...Please Help~
  22. MOVED: 15LA
  23. OS 61FX
  24. Useful OS engine site
  25. What does the number on the muffler really mean?
  26. starter?
  27. OS91FX on tune pipe
  28. OS 46 AX won't turn over freely
  29. why dis-continue the cvr.12?
  30. 21vg, 30% nitro head shim
  31. OS 46 VXDF (or OS 46 VX-M) question
  32. OS BGX 3500
  33. Mid-range rattle ?
  34. OS 55 Ax Exhaust again
  35. OS 55 AX
  36. os .18 cvr crankcase stripping head bolts
  37. FS120-II with pump not consistent
  38. Header for 30 sized OS
  39. OS FS 70 Ultimate
  40. fs 40, seems to knock
  41. OS 18TM
  42. OS 91-FS Surpass 1 high speed needle overflow
  43. OS Instruction Manual Confusion
  44. osmg1992 crankcase pn#
  45. Broken Pressure Tap
  46. O.S. 160FX 3 bladed prop question.
  47. 1.60 FX in a Spitfire
  48. o.s. crankshaft
  49. OS 91 FX Question
  50. OS 61 SF peeling, fact or fiction
  51. Pull start for .12 CV-R
  52. MOVED: Aftermarket Piston, ring & cyl. liner 91Fx
  53. Help to ID OS motor
  54. OS61fx in a 46. size plane
  55. O.S. TZ-TX pull start help
  56. 3Blade Prop for OS BGX 3500
  57. Tuned exaust
  58. os .25 FX
  59. .40 LA Help.
  60. Extending the shaft of a FS120
  61. OS91FX mid range problem
  62. O. S. 1.60 FX FI
  63. OS .21 vpec question
  64. How to calculate thrust?
  65. OS FS 200 & 200FI
  66. help with parts for 91 fx
  67. 40 fs, info on ring/cylinder
  68. MOVED: Disassembly / reassembly O.S FS engine
  69. prop for 40 fs
  70. OS 61SF ABC-P
  71. 120AX
  72. OS 160FX prop
  73. 46 sf ring install
  74. O.S. FS-120 Bearings
  75. os 91 4 stroke
  76. OS 1.40 RX
  77. emp anf fuel
  78. temp anf fuel
  79. os fs 120 non surpass engine, circa 1983
  80. header / pipe for 18-cvr
  81. MOVED: GASOLINE MOTOR FOR TMAXX
  82. Hydra lock engine damage?
  83. Flexible Exhaust for OS Four Strokes
  84. Carb for 1.60FX
  85. 91 fx/ goldberg 10-300.. prop?
  86. What kind of OS .25 V engine do I have?
  87. 1.20 surpass Short Crank?
  88. OS FF240 Pegasus-Need cylinder head
  89. ODD PROBLEM 18TM
  90. Black oil residue, .46AX
  91. MOVED: Old OS 120 SF 4 Stroke parts
  92. Question about carb for 61 FX
  93. OS 120 AX cut
  94. OS vspec idling issue
  95. OS MAX 21 VZB (P) not v-spec
  96. Muffler for old PET OS 0.99?
  97. OS 15 replacement muffler
  98. .18 not getting good fuel
  99. OS61RF
  100. OS .40 FP
  101. 3-Bladed Prop for 1.60FX
  102. Running time
  103. os 18 tm
  104. MOVED: O.S. .91 FX with 14x6 ??
  105. removing bearings in 46FX?
  106. OS 18 CVRX
  107. OS AX 46
  108. Low-end needle valve factory settings for FX engines
  109. OS91 FX Inverted
  110. VZB Crankcase
  111. What OS Engine is this Exactly?
  112. OS engine for Inferno 777 WC
  113. FT-160 carb needed
  114. OS .91 II Surpass- 3-blade prop??
  115. OS .18 CVR Marine to pull-start?
  116. OWB slipping on CVR-X .15 Thoughts?
  117. OS .50 Hyper question
  118. OS 12TZ
  119. Vague instructs on prop tightening?
  120. vspec without carby inserts
  121. os 52 surpass
  122. Frustrated by lack of parts for O.S. FS-120 III
  123. OS parts that fit on Magnum engines
  124. OS91FX Problem
  125. Probs with OS 32 engine
  126. Unusual carb rotor slot wear
  127. Rear bearing stuck on crank on OS 61 FX
  128. OS FS Surpass 120 E
  129. .21 vspec problems
  130. OS .55AX 90Degree muffler adapter
  131. O.S .21 VG(P) questions
  132. 46 FX bearings ???
  133. os 18tm to bump start
  134. OS 120ax bearing replacement
  135. 120 4/C W/Pump quits when glow clip removed
  136. os 91 fs tends to die after 20-30sec idling
  137. OS 160 burning up plugs
  138. OS 91 FS
  139. 25FX problems
  140. Muffler OS50sx
  141. need 2 pushrods and covers for os90 fs
  142. Air Bubbles troubles ?
  143. OS 40 MAX LA
  144. Long or short plug OS 46 LA
  145. OS .18 CVR
  146. OS 91 Prop Size w/ large spinner
  147. Different versions of O.S. 61 Hanno
  148. OS 91 small head df
  149. OS FS-26S hard to start
  150. Muffler question OS FS-120 Surpass II pumped
  151. OS140RX
  152. Engine Cleaning
  153. 160 twin prop. size
  154. vspec problem
  155. OS RX-M Spare parts
  156. 30% Nitro- Do I Need A Head Shim?
  157. Help needed with pump on OS FS 120
  158. OS FS-200s
  159. OS FS 70 ll Surpass throttle
  160. I have a T-maxx 2.5 with many mods questions about O.S. engine
  161. Help needed with OS.fs-120III
  162. OS .18 TM wrist pin issue...
  163. OS peeling discussion over in glow engine forum
  164. OS .46AX CONROD BROKEN.
  165. FS120
  166. OS 55AX or OS50SX
  167. O.S. 1.20 AX Specs
  168. O.S 240 Pegasus problem
  169. O.S. RG idle carb problem
  170. max 18 cv r pull start
  171. OS 1.08 FSR help !
  172. O.S. 240 Pegasus
  173. Aquacraft 18 Engine - O.S.?
  174. OS 46 running Backwards
  175. OS 61 FX vibration
  176. which version OS 120 do i have?
  177. OS 25 fx question
  178. os vspec temperature
  179. O.S. BGX-1 3500 question?
  180. OS fourstroke overheating?
  181. RE:engine instructions
  182. OS BGX1
  183. Big time noob question
  184. OS #8 vs A-5 Glow Plugs
  185. 70th Anniversary Edition FS-52S
  186. .46fx bearings Play??
  187. running problems with OS 25 FX
  188. os fs 48 piston ring
  189. MOVED: la.40 hop ups
  190. New sleeve for OS .18 TM
  191. OS 40 FP yea, it's an older model...
  192. OS FS-61 intake manifold part number?
  193. 160 fx problem
  194. Rebate
  195. 50SX & Hatori pipe
  196. OS .18 TM disassembly?...
  197. OS 70 SURPASS HEAD TROUBLE-
  198. Pressure nipple for OS 120 AX
  199. 0.S 160FX FI
  200. 1.40 RX Bearings
  201. O.S. 46LA Engine Problems
  202. OS 160 Fx pipe
  203. sleeve honing procedure
  204. OS 1.6 FX for Dynaflite Super Decathlon
  205. Can I reverse the rotation of a 0.46AX engine?
  206. OS TG??
  207. 1.60 FX exhaust questions
  208. Sara's science project: prop vs thrust
  209. O.S. FS-91 II Surpass w/Pump
  210. v-spec
  211. OS RG Non-pull start?
  212. MOVED: OS 1.20 AX
  213. Thanks and experience with FX160
  214. This FL70 has a problem
  215. Adding After Run Oil in 4-stroke
  216. Crankshaft endplay
  217. 91FX with tuned pipe
  218. Starting problem on OS 70
  219. OS 91 Surpass
  220. EB Modified 12Tz vs 12Tz(p) speed tune
  221. OS .70 Surpass (early model) trouble
  222. OS 91 FS Surpass
  223. 26 FS dissassembly
  224. Two Valve cover FS 120
  225. newer carb
  226. FS 120 Surpass
  227. OS 91FX High Speed Needle Not Responsive
  228. O.S. 18CV-RX nitro and oil content
  229. OS .21 VZ-B V-Spec-T Break-In Questions
  230. Fuel for 1.60 FX
  231. O.S. .50F SR
  232. os engine for revo racing
  233. Re: Differences in the .61SF & .61SF-H
  234. Idle Stop screw
  235. 1.60 rear crankshaft bearing
  236. What modern OS 4-stroke engine has the same power as the OS H60F from the 1970s?
  237. OS 160 FX Mid-range tuning
  238. Inverted OS 70 Surpass II run problems
  239. Engine accessories
  240. Crankcase breather
  241. 91FX break in
  242. Long term storage 91FX
  243. Why did OS stop making hot 2 strokes?
  244. lack of engine compression
  245. OS FS-91SII-P Extreme Vibration
  246. OS .46LA carburator issue
  247. OS120AX
  248. OS 70 FS II Exhaust Header
  249. What's the difference between 120 Surpass (I), II and III?
  250. OS FS 120E Pressure question