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  1. YS FZ 63 Low RPM
  2. YS91FZ, need help with the Regulator setting.
  3. 185 dz cdi - air in the fuel line between injector and throttle body
  4. DZ 170 Questions
  5. Ys 120 muffler thread
  6. ys63s quits running
  7. YS 185 Prop torque settings
  8. ys 63 metal sounds
  9. Need a little help sourcing a part
  10. YS 61 ar long stroke
  11. Dz140
  12. YS 115 flkooding
  13. New 80 four stroke???
  14. Ys 91fz
  15. YS63FZ-S quits in a maneuver
  16. YS 185 cdi zero surging going rich and back firing
  17. Engine size, Proppeller, RPM
  18. After run/storage oil for YS engines
  19. P51-d / ys 115ws or ys 140fz
  20. So what happened to YS (Yamada Mfg)?
  21. ys 120 fz...what prop size to use???
  22. YS 120 F compression
  23. YS FZ 53/70/80 S engines listed at YS Japan
  24. Ys 60 with macs tuned pipe
  25. Y.s. Fz120
  26. YS-120FS Rich Idle
  27. YS 63 won't go above 8,000 rpm
  28. older but seems to be in great shape ys 1.20 sputtering
  29. Drilling piston for
  30. YS 140 quits
  31. ys .45 2cycle
  32. YS FZ110S rebuilt - question on regulator
  33. re-assemble YS110s crankshaft into casing
  34. FZ110S bearings spec
  35. YS 185 won't throttle up.
  36. YS 170 DZ will not idle down
  37. Stuck valves
  38. YS DZ70 fuel draw problems....
  39. YS 175 CDI Negative Push engine dies out
  40. YS DZ70 - Air Bubbles in Fuel Injector Line
  41. Cue The Sombre Music
  42. Synthetic after run oil safe on silicone?
  43. Rear Bearing debris - New Crankcase?
  44. YS set up to run in reverse rotation for twin
  45. YF 120FZ - Valve cover Pressurized?
  46. This section is just a mine of information, thanks to all contributors
  47. Ys dz
  48. YS 53 squeaking
  49. YS 53 repaired
  50. Aluminum beam mount for YS 115
  51. Timing YS-FZ-140
  52. YS CDI ver. 2 - Power Source Selection
  53. YS F-120 RPM recommendations
  54. YS CDI Ver. 2 - RPM Telemetry
  55. Ys fz 91
  56. Ys 115fz s
  57. YS 61-S o-ring needle valve idle adjust
  58. 175FZ fuel system question
  59. us engine repair
  60. ys engine repair
  61. YS F-120 help... parts missing!
  62. YS 45 spare parts frustration
  63. Ys fz 110 prop nut
  64. Ys 61-s
  65. Ys fz63. Won't idle w/o glow igniter
  66. Ys fz63 won't idle without glow igniter
  67. Fz 120
  68. Check valve
  69. ys 110 not Guard low idel
  70. YS110s no response to throttle.
  71. greg bischof
  72. What Head Is This?
  73. I have a question about the DZ185 cdi.
  74. DZ160 Power Comparison
  75. Pulse 60 Saito 100 need more
  76. break in ys dz 170 cdi
  77. YS FZ70S vs DZ70S Difference?
  78. IS YS FZ1.40 TO MUCH POWER FOR Top Flite P51d 60 size?
  79. YS120AC needle valve question
  80. YS FZ110-S Muffler Adapter
  81. YS FZ 140 S Piston Damage.
  82. YS Fz63 disc valve and cylinder head valve sealing info needed
  83. YS 120AC piston design/failure?
  84. ys 63 fuel line pressure
  85. ys63 fuel consumpsion
  86. fz 63s mounting
  87. ys fz3s throttle arm
  88. YS 110S regulator tear down
  89. fuel dripping from carb on 120fz
  90. YS 115 problems
  91. FZ70-S : rotating the regulator
  92. Mid range stumble and dies
  93. Best , no compromise YsFZ140 exhaust setup?
  94. ys 70 pipe
  95. change the prop from 17x12 to 18.1x10
  96. .91 AC Mixture Problems
  97. YS170 fuel tank clunk & break-in
  98. YS50ST Head gasket dramas. need help!
  99. Ys175 cdi
  100. YS FZ 140 Sport Throttle Barrel Seizing
  101. YS 140L surging
  102. 140L compression
  103. ys fz 63 break in
  104. ys 160dz Question ?
  105. New YS Engine "Coming Soon"
  106. ys 170dz cam follower
  107. muffler for YS45FR
  108. When to replace YS bearings
  109. BYRON 30% Heli Fuel?
  110. YS 170 DZ Needle valve and regulator / low speed setting
  111. YS 170 prop - 4 blade?
  112. how do you stop syphoning
  113. to vibrate or not to vibrate...
  114. YS DZ 70
  115. YS45 on Arrow 40
  116. Seating New Bearings in a YS 61-R
  117. YS45FR won't start
  118. YS F120 exhaust port
  119. How do I remove the head from a YS 140L engine
  120. Max rpm for ys 120f sc
  121. New YS70
  122. where do i get this exhaust?
  123. ys170dz Fuel tank
  124. help with idle problem on 91AC
  125. ys 1.20 se ?
  126. ys 120 fs or ac ?
  127. 115FZ Crank re assembly
  128. YS DZ140
  129. Piston / Sleeve Clearance
  130. F120
  131. used 91 ST heli engine wont run
  132. 115S fuel consumption
  133. dz 160 engine problem
  134. Pre-buy inspection of YS140L
  135. YS 61 Long stroke fuel consumption
  136. YS 115 Muffler Header
  137. YS61-S
  138. Parts for YS .61 long stroke (rear ex)
  139. YS-63 Drive hub
  140. YSDZ 160 cam bearing removal from crankcase
  141. YS 175 CDI Nose Ring
  142. YS 63 overly rich regulator
  143. 120 decreasing rpm
  144. Muffler keeps loosening up
  145. fuel leaking out carb? 120fs
  146. 110 FZ pushrod tubes
  147. YS 70FZ 16-6 Prop?
  148. YS CDI RF interference
  149. YS-115 Rough on Idle
  150. YS 91AC CDI - Lubrication
  151. YS120SF Needs Help
  152. YS-FZ110 dies on idle only in flight
  153. YS 91AC
  154. YS115 wont start
  155. ys 91 ac question
  156. YS 170 regulator
  157. YS 70 loading up
  158. ys fz110 (not the s version)
  159. New YS 115s runs then dies over and over.
  160. help with YS info
  161. Identification of YS 120
  162. Y 140 no compression
  163. YS 120SF crankshaft questions
  164. FZ70 Disassembly
  165. Proper Service After 5yr Storage
  166. Ys fz70
  167. YS 160/170 to gasser?
  168. Ys FZ 110S, just want to make sure.
  169. ys 170 - shutting down
  170. YS F120 Crankshaft Confusion...explain ? ?
  171. dz160 stop in Loud noise
  172. 91 ac idle problem
  173. Badly running YS 63S
  174. Where are the 91FZ's??
  175. YS-120SF VS YS-120NC
  176. YS 110s problems
  177. YS Super Mount 3
  178. Is this muffler ok?
  179. 3 or 4 blade prop for ys fz 91?
  180. YS 140 Sport Idle Problems
  181. YS 140 Sport
  182. YS 115s and fuel consuption
  183. Wanted: YS 45 Carb. body
  184. F1.20 head replacement
  185. Question re smoke trail YSFZ 1.10
  186. YS 110s problem
  187. ys 91 4 stroke
  188. YS 120 No Pressure from Pump.
  189. yamada email
  190. Striped out muffler caseing
  191. YS 160DZ Help
  192. 160 vs 170 cdi much difference?
  193. YS Repair Facility
  194. Troubled YS110S
  195. Old YS.60 2S-need directions
  196. YS 1.40L sensitive needle
  197. New FZ-110s fuel problems
  198. .91 AC
  199. YS FZ 70S a few questions
  200. YS 110FZ throttle barrel setting
  201. Ys fz 91
  202. Dz 160 fuel pump prime
  203. YS .60/.61 two stroke parts source?
  204. 61 and 80 Heli engine Qs...
  205. 160 down on power
  206. PETEC - HELP with YS parts and service
  207. What fuel tank for FZ .91?
  208. YS Heli engines for Pattern?
  209. Aftermarket venturi for YS 170 ?
  210. YS 110S won't prime
  211. YS 170 CDI on low nitro
  212. 170 DZ
  213. 91AC fuel running out carb and exhaust
  214. Could not start NIB YS115S
  215. YS 115 Leaking airbox
  216. YSE0895 Exhaust Pipe Assembly for YS
  217. YS 110 Full throttle with carb closed
  218. To all YS CDI users
  219. YS 70 prop choice
  220. YS 170 CDI
  221. YX 140L sensitive needle
  222. Which ys 120 is this
  223. Canadian YS engines part retailer ??
  224. how hard I have to close the prop nut ,dz160
  225. Recalcitrant 160
  226. 140s problem
  227. YS170 Setting Up
  228. YS 120AC Dependability Maintenance and tweaks
  229. FZ115 fuel consumption
  230. YS 120 cams
  231. DZ170 Throttle Linkage
  232. YS 91 Pulsating Idle
  233. How to take out cylinder liner of DZ170 ?
  234. HS needle not change maximum rpm dz160
  235. prop apc 17x12w for dz 160
  236. fuel system problem with YS 140s
  237. Backplate HELP
  238. YS 115 strange idle
  239. Best Nitro/OIL/methanol combo for Fz 1.10
  240. YS 1.20 FZ HELP!!!!
  241. YS115
  242. Regulator direction
  243. YS Setup and Photos
  244. 120FZ and drop of fuel
  245. YS110 FZ prop
  246. YS 1.10 FZ trouble since repair
  247. YS63 tickover
  248. Changing ring in YS1.10
  249. how to fill
  250. YS 70 REAR BEARINGS

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