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  1. YS 160DZ Fuel Consumption
  2. Need a YS 120-SF Drive Washer and Prop washer
  3. ys 110 overheating
  4. Need Help Troubleshooting My YS 120
  5. more speed for my 120ac?
  6. YS 160 cutting in flight
  7. Stock up on coolpower 30% heli...
  8. YS 45 FR
  9. YS 120 fuel pressure
  10. ys110 where,what ???????????
  11. Recommended fuel
  12. ys 160 missing beat
  13. Velocity stack on 160
  14. ys 140fz rebuild instructions and tips
  15. YS 140FZ problem help needed
  16. YS FZ110S carburetor...
  17. Best propeller for the YS FZ110S?
  18. YS 140l vs 140dz thrust figures
  19. YS 110 tuning problem
  20. 3 Blade prop for YS 91
  21. YS 110 mid range question
  22. Important Please Read!!!
  23. Air Leak ?
  24. YS 140 FZ
  25. YS 120FX lacks power
  26. o-ring for reg screw
  27. ys DZ160 fuel in valve cover
  28. YS63 Exhaust options
  29. Tank for Ys63
  30. YS 120 NC Running Rich, Leaking Fuel
  31. YS 63S Runs Super!
  32. YS-110FZ muffler
  33. HS needle adjustment
  34. FUEL LEAK
  35. New YS170DZ Qs?
  36. ys 91AC quitting
  37. Out of Pocket 16May thru 19May
  38. YS63 question / problem
  39. YS 2 stroke 61 w regulator
  40. Clean Muffler
  41. You got your new 12X?
  42. 170DZ RPM Confirmation
  43. YS91FZ
  44. They are different the YS 110 and 110S
  45. YS140FZ valve ajustment screw + nut
  46. !!!91 AC
  47. DZ 140
  48. YS 1.10S is Awesome
  49. sorry !! more help needed
  50. another after run oil question
  51. YS 140 SPORT RUNS TERRIBLE
  52. YS-110 idle problem
  53. Sticking plunger
  54. YS 110FZ engine repair
  55. 160-DZ hard to start of first run of the day
  56. 160 sounds/acts lean
  57. Tettra fuel tank question
  58. YS110FZ lost some power
  59. YS 120 general questions
  60. YS 1.40 sport RPM?
  61. Need muffler for YS140 Sport
  62. who makes this cool power 30% heli fuel
  63. YS160 Surging problem
  64. YS45
  65. Change fuels - re-tune engine?
  66. Coolpower Heli 20 same as Pro Pattern 20?
  67. Yet another fuel question
  68. YS^#FZ valve cover screw size
  69. YS 170 + Hatori 725?
  70. 91 ac valve aj.
  71. YS FZ 110-S & T.F Stinson
  72. 4k regulator tuning
  73. 3 blade and the 140 sport
  74. Dz 160
  75. YS IIOs
  76. YS 63S prop selection
  77. YS Mounts
  78. APC 19x8W on YS 170DZ
  79. PLastic Fuel Pump piece
  80. FZ63-S Parts help
  81. Powermaster YS 20/20 all synthetic
  82. 4/11/08 Out of Pocket
  83. ys foam clunk
  84. Dingo Help Please!
  85. Priming 110
  86. YS110S
  87. ys110s and 15x10 apc prop
  88. camshaft
  89. New FZ110S back pressure probs?
  90. First FZ110-S – WOW
  91. 140l upper end cuts out
  92. 63fz hesitation on throttle up
  93. 4 blade APC 15,5x12 on 160 DZ
  94. ys 110 long term storage
  95. YS63 FZ knocking as throttling up
  96. YS110fz prop selection
  97. YS 110 Needle Adjustments
  98. YS 160 fuel connection pro??
  99. ys dz 160 Crankshaft Ring broken
  100. FZ110 Carb fills up with fuel
  101. Check valves for YS 110
  102. YS170 DZ length
  103. ys 160 mount
  104. Leaking non return valve - 160DZ
  105. FZ110s vibrates bad
  106. YS 1.10 FS S new version...having problems
  107. At the end of a fliying day
  108. YS 110 FZ-S Running Problems
  109. Prop advice
  110. YS-160DZ won't cut-off
  111. YS 160DZ Prop Shaft
  112. YS DZ170 prop for break in
  113. YS 91 ac no compression -repost in the right place this time
  114. Pipes & Headers 4 YS's
  115. YS170DZ IMAC Prop
  116. 91AC or 91FZ
  117. Can you recognize this Motor mount?
  118. DZ160: hard 1st start of the day
  119. YS 120 NZ Supercharged dos and donts
  120. 2 Fuel tanks
  121. Dave brown Engine mount for YS110S
  122. YS 63S won't idle and drips fuel
  123. YS 61-R 2C
  124. YS-140 L Production Years
  125. YS FZ-110- FZ-110-S difference
  126. After run/storage oil for YS 120 NC
  127. ys 45
  128. Glow Plug Tap Size
  129. YS 45SF
  130. YS 63FZs I can't be the only one...
  131. YS 170 DZ Serial No
  132. Anti Vibration Mount
  133. YS engines
  134. YS 63s
  135. YS 140 FZ - stuck valve
  136. New FZ63S..problems
  137. YS performance website????????
  138. TDC
  139. YS 63s Drive washer
  140. 91 ac
  141. HS niddle setup for 160DZ
  142. On-line ordering for Cool Power 30% Heli fuel
  143. YS 110fz engine problem
  144. FZ120 Fuel Tank
  145. YS DZ170 leaning at top end.
  146. Rebuild????
  147. YS Foam Fuel Clunk
  148. ys 60 fs
  149. YS 110 quitting??
  150. 160 fuel spitting
  151. Filter
  152. YS 91 ST4 RPM "happy band"
  153. Power Master 30/23
  154. YS 140 Sport Throttle barrel stuck
  155. ys63 fz power dropping off
  156. 120 SF or 120 NC
  157. YS 170 vs. Saito 220
  158. Air Tool Oil. A No No???
  159. Cold weather starting
  160. Wildcat YS 20/20 fuel for YS's
  161. YS 160 DZ - Small Diameter Prop
  162. ys 91 versus 1.10
  163. Removing backplate 63fz
  164. Storage
  165. YS FZ110-S Regulator screw position
  166. YS FZ110-S out of production?
  167. YS .91 AC
  168. YS 63 S
  169. YS 63s priming problems
  170. ys 140
  171. replacing the YS160 with the YS170
  172. Running in 110s
  173. ys100fz vs ys120ac differences?
  174. YS FZ110S & tuned pipe
  175. Recommended RPM range's
  176. 3.5" spinner for 140s
  177. YS 50ST sticky regulator
  178. Can Hatori 675 pipe be used with 160/170DZ
  179. Inverted YS 1.10
  180. My first YS!
  181. Ys63FZ-s Loose valve guide/seat
  182. YS140FZ Propeller size
  183. ys63s air bubbles.
  184. 170dz
  185. YS .63 FZS Problem
  186. 91AC Question
  187. Back plate assembly versus separate parts
  188. YS 45FS
  189. 140fz
  190. Cool power for YS
  191. YS .53FZ - no fuel to carb???
  192. Header O.S. in YS FZ63S
  193. intake push rod cover is partially out of place
  194. YS 170 prop
  195. Carburetor of YS FZ110S
  196. Klotz oil for YS-engines
  197. Engine life
  198. ys 91 and ys 110 Question
  199. YS-110 and 15X8
  200. Merry Christmas Troy Newman
  201. YS 110 fuel feed problem.
  202. ys exhaust port question
  203. 110 FZ problem
  204. YS 1.40S throttle arm extension
  205. YS FZ 110s won't stop running
  206. YS What?
  207. ys 91 carb problems
  208. ys 110fz s with big problems
  209. Weight of YS 140L with muffler
  210. YS 120NC Front Bearing
  211. Parts
  212. YS HS setting
  213. Over tightened prop nut?
  214. YS60 advise.
  215. YS heli engines
  216. NEW TO 4 STROKE, NEED ADVICE
  217. 91AC timing ?
  218. YS 63S
  219. differance 91AC and 110FZ
  220. YS160 Front bearing oil seal replacement ?
  221. 140 FZ plumbing
  222. Recommended Fuel filters?
  223. Props
  224. Fuel and Pressure line length
  225. 160 DZ Fuel line pressure too high
  226. new 110s flooding is plumbing or trash
  227. 4 bladed prop for a YS120AC
  228. Older YS 1.10 fuel line hookups
  229. Where to buy a YS FZ110S?
  230. 91 AC muffler question
  231. Solivan 16 oz for YS-110
  232. YS 170 Characteristics
  233. YS 170 Fuel
  234. ys fz110 idle problems
  235. Valve Cover Paint
  236. .91ST dies on transiton
  237. YS63fz vibration
  238. FZ63S regulator set
  239. YS 110FZ problem question,,
  240. ys 50 ST?
  241. Header pipe for YS 91 AC
  242. Extention for YS 1.10?
  243. 110 won't run
  244. Good end of day routine?
  245. Bent YS 1.10 FZ crankshaft
  246. Spinner adaptor for YS-110
  247. Props on YS1.70
  248. What version of the 120
  249. Any 170dz news ?
  250. fz110s and fz110