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

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