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  1. 40 LA Fuel Inlet Fitting Came Loose
  2. Possible largest prop for OS .46 AX
  3. *OS 120AX Bearings*
  4. os 46 ax running a 20000 rpm
  5. rywill these engines fit??
  6. os rz max
  7. Hyper 50 damage
  8. .91 FS II Surpass leaking and losing power
  9. 52 Surpass Tappet Gap
  10. OS21TM air leak?
  11. O.S. 46FS piston ring
  12. os 91fs no compression
  13. 1.20ax prop question
  14. FS-70 Ultimate fix
  15. MOVED: O.S. 61 RF - Tune pipe - Hanno II Sleeve ABN/ABC
  16. OS FL70 four stroke
  17. O.S 1.20FS Question?
  18. OS Max 25 Sticky
  19. OS 1.20 FS runs erratic
  20. OS .61 FX
  21. 55AX sensitive needle
  22. FS120 Surpass II pumped low speed needle setting
  23. FS-120 Surpass III Engine w/Pump What fuel?
  24. Where can I send the engine back in the UK?
  25. v spec carb
  26. few questions on the .21 V-Spec
  27. OS 1.20 pump regulator
  28. AX .55 Low Speed factory setting
  29. varnish on 6 month old engine
  30. One way bearing slipping
  31. SF .46P setup
  32. OS FS91 II ticking
  33. 18CV-RX in Tmaxx
  34. OS 32SX air leak problem
  35. 91FX break-in with Bisson muffler
  36. Question on OS 75 AX
  37. Head Shim for 21TM w/30% Nitro
  38. OS61SX-WC, changed fuel to lower nitro
  39. .18tz hard to start
  40. OS FS-91 / w Pump, should I avoid castor oil?
  41. 55 AX perry pump ??
  42. OS61Fsr
  43. OS FS-91 / pump; runs when needle valve fully closed?
  44. What is the part number for the most updated needle valve for a 91FX
  45. Idea to Secure Muffler on OS FS91 II - Is it OK?
  46. os 160 FX woodruf key
  47. 91 FX Leans Out?
  48. Exhaust connection threads
  49. 18tz w/ 18tm parts
  50. .18 cvr-x Stalling
  51. OS FT-160 Gemini Tank question
  52. 18tm
  53. O.S. 1.60 Back Plates
  54. OS Max .91 Surpass 4-Stroke engine - Pipe & Muffler Question:
  55. .91 Surpass crankcase tap
  56. Question about O.S. 46 AX carb
  57. OS FS-200S Pump
  58. WHICH PROPELLER FOR OS 91 DF?
  59. OS-120AX quits
  60. Should I send my .55ax in?
  61. O.S. 21VZ-B V-Spec Buggy/21J
  62. How to take cooling head off .21tm?
  63. New OS 81 4-stroke
  64. OS 52 Four Stoke Break-In
  65. Good plugs for the .21TM?
  66. OS 70 Ultimate carb question / solution
  67. OS 20 FP
  68. Gasket Set cross reference?
  69. o.s. .18tm carb?
  70. 15CVR-X and 18CVR-X Starting shaft interchangable?
  71. OS18TM question
  72. Missing Screw Size?
  73. FT 160 Gemini
  74. MOVED: Magnum XLS 52
  75. 91 Surpass II pump problems (HELP)
  76. New O.S. 81 4 stroke [ abit warm ]
  77. 3D prop for .46 AX??
  78. OS FT-160 valve adjustment
  79. 46AX - Fine grit in filter after break in
  80. O.S. 91 C-Spec conversion to acft.
  81. OS 120 surpass III w/pump
  82. OS18TM problem
  83. 55ax muffler
  84. OS 91 FX Muffler
  85. Hyper 50 Blown Piston again!!
  86. os 18tz head
  87. 46AX Liner issues
  88. 120 AX Break-in Prop
  89. 1989 OS MAX 46 SF-S abc STARTING PROBLEM
  90. rpm surging 4stroke 52 surrpass
  91. OS18 TZ Pbs
  92. 120 ax max recommended rpm
  93. 50SX-H Hyper rich low end
  94. os 70 surpass, stopping
  95. FL70 muffler pressure to the sump
  96. FL-70 loss of power
  97. OS 52 4 stroke will not idle
  98. OS FS-52 4stroke in hot weather.
  99. vspec problem
  100. OS 200 FS settings ??
  101. In need of a 70 Surpass II crankcase - Discontinued?
  102. OS 61 FX dead sticking
  103. OS FS61 head screws
  104. AX55's
  105. O.S 55AX vs. 61FX?
  106. O.S. 61 Question?
  107. where are os .21 vzb manuals online?
  108. Will gasoline damage O rings?
  109. Which engine is that???
  110. Fitting Prop to an OS FT 240 (300)
  111. OS .32 sx cylinder head???
  112. 55 AX Mid Range
  113. OS FS61 cam bearing removal
  114. OS 21 VG stall after half tank
  115. replacement piston ring for OS MAX 50 SX
  116. OS 91FX Problem
  117. FS-1.20S III
  118. OS 18 cvr won't say running?
  119. OS18TZ-TX crankshaft into 18TM
  120. Bearing replacement OS 1.20FS Surpass
  121. 91 surpass vs 91 surpass pumped
  122. 91 surpass factory mixture setting
  123. O.S. .18 cv-rx
  124. OS 91FX Break-In help
  125. 4 cycle assembly question
  126. FR5-300 Sirius radial being discontinued?
  127. A3 plugs vs the RCAT glow starter
  128. Motor mount for OS 200U
  129. OS Carb
  130. idling screw
  131. Which fuel for both O.S. FX25 & O.S. FS56a
  132. Honing a 46 FX
  133. OS70 backfiring
  134. Minor pitting on piston.
  135. OS 61FX lowspeed Needle valve location?
  136. OS46AX engine
  137. fs91/p adjust...
  138. .46 LA fuel and prop recomandations
  139. fs-91/p breakin problem
  140. Best prop for OS 1.20 AX
  141. O.S. 15 LA Won't Start
  142. FS56a RPM
  143. YS/Saito 20/20 in OS 46FX
  144. parts for 2nd gen. 1.20w/pump
  145. new 37SZ-H Problem
  146. o.s 21 tm tmaxx minifold
  147. Vspec VZB .21 (possible connecting rod dmg?)
  148. OS 61 RF Thrust washer
  149. os .21tm factory settings
  150. 91fx max rpm
  151. Hyper 50 problem??
  152. Rust: pre-existing ??
  153. Trouble With New OS .46AX
  154. OS 91FX can't shut down
  155. OS .61 FSR carburetor
  156. O.S. .50SX Bearings
  157. 18CV-R and 15CV-R
  158. O.S. 4BK Carb Replacement
  159. Engine ID help
  160. os.18cvrx 11j rotoary carb wont start
  161. FP-60 liner
  162. 1.20 FM OS not running
  163. Replacement bearing for OS .30VG-P
  164. O.S. FSa-81 Carb Settings
  165. 15CV-R or AQ .18 more powerfull?
  166. OS .18CV-RX Crankshaft question
  167. OS 61 SF-P, PD-02 pump unit question.
  168. OS FS 91 Break in / running fuel
  169. 25VF and 25VF-DF Crankshaft Specs
  170. OS 1.60 dies in air
  171. OS 300 5 cyl
  172. .21 VZ-B V-SPEC (T)
  173. .30 VG rotostart?
  174. 30 VG "safe" temps...
  175. OS 91 Surpass header
  176. OS FSa 56 problem
  177. Cooling head for .30VG
  178. O.S. 40LA needle valve + airbleed screw setting.
  179. O.S. FS-91 II Surpass w/Pump fuel tank location?
  180. os.18cvrx w/11j rotary carb
  181. os 40la screw help
  182. O.S 1.6fx new ring
  183. .91 FX + Macs Tuned Pipe Questions
  184. OS18TZ standard shaft with rot carb ?
  185. OS 15 FP RPM
  186. "Locked Up": Drive Hub and Woodruff Key
  187. OS 200 4/C question
  188. FSa-56 Inverted mounting
  189. FSa-56 fuel
  190. OS .21RG non pullstart
  191. MOVED: cordless starter
  192. O.S. 55AX Inverted Mount Problems
  193. o.s 55ax
  194. os 70 surpass 2 drive washer
  195. OS VSpec #13895
  196. OS .55 AX Funfly
  197. MOVED: O.S. .81 FS-A
  198. O.S. 160 Sleeve repair Question???????
  199. O.S 52 surpass carb adjustment
  200. Pattern prop for new OS 91FX
  201. FS120 Series II pumped - fuel leak at regulator
  202. .26FS Questions
  203. O.S. 61VR-M Connecting rod
  204. which 3 blade prop for 91fx?
  205. OS 25 FSR Backplate and gasket
  206. OS 46SF P VS 46FX
  207. OS 75AX Pitts style muffler questions
  208. O.S. 21 V-Spec
  209. 91 fx carb replacement
  210. 91FX prop rpm
  211. OS 50SX-H graduation markings ??
  212. Factory slide carb settings for OS Max 12CV
  213. OS 61fx corrosion
  214. problems with .46 FX H SOLVED!
  215. OS 91 FS surpass
  216. OS FT-120 II - ideal rpm
  217. ft160 low compression
  218. OS 1.20 Pumped Motor Mount
  219. Alternate OS break-in procedure?
  220. Correct spec 18TZ-X
  221. Advice on maintenance of OS
  222. OS 15CV-R and 18CV-R take the same header?
  223. Air bleed screw for Max-H 40
  224. 25fx
  225. Ring for old OS50 Max
  226. OS.46 FXI needle valve
  227. Help with An OS.46SF-P
  228. Glo plugs for older OS engines.
  229. 40 LA Question
  230. Fuel line connections on 160 twin?
  231. OS .25 FX
  232. .46 FXi and .46AX
  233. MOVED: Just ordered the os 75 ax
  234. O.S. FS-90 Carb
  235. OS .61 FX break in prop
  236. OS 18tm meter valve problem
  237. AX55 After market muffler
  238. O.S. FS-26S-C II 4-Stroke cam bearings
  239. OS 140 RX rear exhaust gasket
  240. OS 46 AX
  241. os fs 40 surpass 4 stroke engine parts
  242. o.s 21tm
  243. I need the part # for the 10E-R carburetor for my .12 cv-r engine?
  244. Gasket material for OS engines
  245. OS 4 stroke runs best upright or inverted?
  246. FS-91SII Fuel doesn't flow to carb
  247. OS 120 Surpass - Pump or no pump?
  248. TIMING MARKS IL 300?
  249. OS FT-120 Gemini engine
  250. lube for os 2stroke engines