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  1. YS 61 ar long stroke
  2. Dz140
  3. YS 115 flkooding
  4. New 80 four stroke???
  5. Ys 91fz
  6. YS63FZ-S quits in a maneuver
  7. YS 185 cdi zero surging going rich and back firing
  8. Engine size, Proppeller, RPM
  9. After run/storage oil for YS engines
  10. P51-d / ys 115ws or ys 140fz
  11. So what happened to YS (Yamada Mfg)?
  12. ys 120 fz...what prop size to use???
  13. YS 120 F compression
  14. YS FZ 53/70/80 S engines listed at YS Japan
  15. Ys 60 with macs tuned pipe
  16. Y.s. Fz120
  17. YS-120FS Rich Idle
  18. YS 63 won't go above 8,000 rpm
  19. older but seems to be in great shape ys 1.20 sputtering
  20. Drilling piston for
  21. YS 140 quits
  22. ys .45 2cycle
  23. YS FZ110S rebuilt - question on regulator
  24. re-assemble YS110s crankshaft into casing
  25. FZ110S bearings spec
  26. YS 185 won't throttle up.
  27. YS 170 DZ will not idle down
  28. Stuck valves
  29. YS DZ70 fuel draw problems....
  30. YS 175 CDI Negative Push engine dies out
  31. YS DZ70 - Air Bubbles in Fuel Injector Line
  32. Cue The Sombre Music
  33. Synthetic after run oil safe on silicone?
  34. Rear Bearing debris - New Crankcase?
  35. YS set up to run in reverse rotation for twin
  36. YF 120FZ - Valve cover Pressurized?
  37. This section is just a mine of information, thanks to all contributors
  38. Ys dz
  39. YS 53 squeaking
  40. YS 53 repaired
  41. Aluminum beam mount for YS 115
  42. Timing YS-FZ-140
  43. YS CDI ver. 2 - Power Source Selection
  44. YS F-120 RPM recommendations
  45. YS CDI Ver. 2 - RPM Telemetry
  46. Ys fz 91
  47. Ys 115fz s
  48. YS 61-S o-ring needle valve idle adjust
  49. 175FZ fuel system question
  50. us engine repair
  51. ys engine repair
  52. YS F-120 help... parts missing!
  53. YS 45 spare parts frustration
  54. Ys fz 110 prop nut
  55. Ys 61-s
  56. Ys fz63. Won't idle w/o glow igniter
  57. Ys fz63 won't idle without glow igniter
  58. Fz 120
  59. Check valve
  60. ys 110 not Guard low idel
  61. YS110s no response to throttle.
  62. greg bischof
  63. What Head Is This?
  64. I have a question about the DZ185 cdi.
  65. DZ160 Power Comparison
  66. Pulse 60 Saito 100 need more
  67. break in ys dz 170 cdi
  68. YS FZ70S vs DZ70S Difference?
  69. IS YS FZ1.40 TO MUCH POWER FOR Top Flite P51d 60 size?
  70. YS120AC needle valve question
  71. YS FZ110-S Muffler Adapter
  72. YS FZ 140 S Piston Damage.
  73. YS Fz63 disc valve and cylinder head valve sealing info needed
  74. YS 120AC piston design/failure?
  75. ys 63 fuel line pressure
  76. ys63 fuel consumpsion
  77. fz 63s mounting
  78. ys fz3s throttle arm
  79. YS 110S regulator tear down
  80. fuel dripping from carb on 120fz
  81. YS 115 problems
  82. FZ70-S : rotating the regulator
  83. Mid range stumble and dies
  84. Best , no compromise YsFZ140 exhaust setup?
  85. ys 70 pipe
  86. change the prop from 17x12 to 18.1x10
  87. .91 AC Mixture Problems
  88. YS170 fuel tank clunk & break-in
  89. YS50ST Head gasket dramas. need help!
  90. Ys175 cdi
  91. YS FZ 140 Sport Throttle Barrel Seizing
  92. YS 140L surging
  93. 140L compression
  94. ys fz 63 break in
  95. ys 160dz Question ?
  96. New YS Engine "Coming Soon"
  97. ys 170dz cam follower
  98. muffler for YS45FR
  99. When to replace YS bearings
  100. BYRON 30% Heli Fuel?
  101. YS 170 DZ Needle valve and regulator / low speed setting
  102. YS 170 prop - 4 blade?
  103. how do you stop syphoning
  104. to vibrate or not to vibrate...
  105. YS DZ 70
  106. YS45 on Arrow 40
  107. Seating New Bearings in a YS 61-R
  108. YS45FR won't start
  109. YS F120 exhaust port
  110. How do I remove the head from a YS 140L engine
  111. Max rpm for ys 120f sc
  112. New YS70
  113. where do i get this exhaust?
  114. ys170dz Fuel tank
  115. help with idle problem on 91AC
  116. ys 1.20 se ?
  117. ys 120 fs or ac ?
  118. 115FZ Crank re assembly
  119. YS DZ140
  120. Piston / Sleeve Clearance
  121. F120
  122. used 91 ST heli engine wont run
  123. 115S fuel consumption
  124. dz 160 engine problem
  125. Pre-buy inspection of YS140L
  126. YS 61 Long stroke fuel consumption
  127. YS 115 Muffler Header
  128. YS61-S
  129. Parts for YS .61 long stroke (rear ex)
  130. YS-63 Drive hub
  131. YSDZ 160 cam bearing removal from crankcase
  132. YS 175 CDI Nose Ring
  133. YS 63 overly rich regulator
  134. 120 decreasing rpm
  135. Muffler keeps loosening up
  136. fuel leaking out carb? 120fs
  137. 110 FZ pushrod tubes
  138. YS 70FZ 16-6 Prop?
  139. YS CDI RF interference
  140. YS-115 Rough on Idle
  141. YS 91AC CDI - Lubrication
  142. YS120SF Needs Help
  143. YS-FZ110 dies on idle only in flight
  144. YS 91AC
  145. YS115 wont start
  146. ys 91 ac question
  147. YS 170 regulator
  148. YS 70 loading up
  149. ys fz110 (not the s version)
  150. New YS 115s runs then dies over and over.
  151. help with YS info
  152. Identification of YS 120
  153. Y 140 no compression
  154. YS 120SF crankshaft questions
  155. FZ70 Disassembly
  156. Proper Service After 5yr Storage
  157. Ys fz70
  158. YS 160/170 to gasser?
  159. Ys FZ 110S, just want to make sure.
  160. ys 170 - shutting down
  161. YS F120 Crankshaft Confusion...explain ? ?
  162. dz160 stop in Loud noise
  163. 91 ac idle problem
  164. Badly running YS 63S
  165. Where are the 91FZ's??
  166. YS-120SF VS YS-120NC
  167. YS 110s problems
  168. YS Super Mount 3
  169. Is this muffler ok?
  170. 3 or 4 blade prop for ys fz 91?
  171. YS 140 Sport Idle Problems
  172. YS 140 Sport
  173. YS 115s and fuel consuption
  174. Wanted: YS 45 Carb. body
  175. F1.20 head replacement
  176. Question re smoke trail YSFZ 1.10
  177. YS 110s problem
  178. ys 91 4 stroke
  179. YS 120 No Pressure from Pump.
  180. yamada email
  181. Striped out muffler caseing
  182. YS 160DZ Help
  183. 160 vs 170 cdi much difference?
  184. YS Repair Facility
  185. Troubled YS110S
  186. Old YS.60 2S-need directions
  187. YS 1.40L sensitive needle
  188. New FZ-110s fuel problems
  189. .91 AC
  190. YS FZ 70S a few questions
  191. YS 110FZ throttle barrel setting
  192. Ys fz 91
  193. Dz 160 fuel pump prime
  194. YS .60/.61 two stroke parts source?
  195. 61 and 80 Heli engine Qs...
  196. 160 down on power
  197. PETEC - HELP with YS parts and service
  198. What fuel tank for FZ .91?
  199. YS Heli engines for Pattern?
  200. Aftermarket venturi for YS 170 ?
  201. YS 110S won't prime
  202. YS 170 CDI on low nitro
  203. 170 DZ
  204. 91AC fuel running out carb and exhaust
  205. Could not start NIB YS115S
  206. YS 115 Leaking airbox
  207. YSE0895 Exhaust Pipe Assembly for YS
  208. YS 110 Full throttle with carb closed
  209. To all YS CDI users
  210. YS 70 prop choice
  211. YS 170 CDI
  212. YX 140L sensitive needle
  213. Which ys 120 is this
  214. Canadian YS engines part retailer ??
  215. how hard I have to close the prop nut ,dz160
  216. Recalcitrant 160
  217. 140s problem
  218. YS170 Setting Up
  219. YS 120AC Dependability Maintenance and tweaks
  220. FZ115 fuel consumption
  221. YS 120 cams
  222. DZ170 Throttle Linkage
  223. YS 91 Pulsating Idle
  224. How to take out cylinder liner of DZ170 ?
  225. HS needle not change maximum rpm dz160
  226. prop apc 17x12w for dz 160
  227. fuel system problem with YS 140s
  228. Backplate HELP
  229. YS 115 strange idle
  230. Best Nitro/OIL/methanol combo for Fz 1.10
  231. YS 1.20 FZ HELP!!!!
  232. YS115
  233. Regulator direction
  234. YS Setup and Photos
  235. 120FZ and drop of fuel
  236. YS110 FZ prop
  237. YS 1.10 FZ trouble since repair
  238. YS63 tickover
  239. Changing ring in YS1.10
  240. how to fill
  241. YS 70 REAR BEARINGS
  242. Rules for Posting in the YS Forum (Please Read)
  243. YS 110fz lacks of power
  244. YS-175 CDI ?
  245. AFTERRUN OIL MISTAKE...
  246. Tips fpr YS90 and 110
  247. Inverted ys120
  248. Starting my YS 1.40L
  249. Something new in the works from YS
  250. YS Fuel

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