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  1. Rotax 447 test run without prop?
  2. Rotax 503: Need Expert Experience & Wisdom
  3. Fuel Burn question
  4. Rotax 582 / Bing carburetor question
  5. Makiing a Port Map
  6. 503 DCDI electric start
  7. Help Identify this Belt Drive?
  8. Very Good Read on Bearing Failures
  9. CHT Sensor Installation
  10. Rotax 503 - one cylinder running rich
  11. Ultralight Engine
  12. Ultra prop adjustment for RPM
  13. Old Rotax 447 no spark
  14. Exhaust attatchment
  15. Old store oil
  16. Re-jetting a Bing 54
  17. Sorry non aircraft question re a 2 stroke.
  18. Amsoil at 100:1 - good or bad?
  19. Good Video on making Custom Sleeve
  20. MZ202
  21. Honda GX race engines- 35 lbs and 25 hp
  22. Would you like to see more New Replacement Cranks, & Rod Kits, Pistons, etc.
  23. rotax 447
  24. Rotax 503 - only one cylinder running
  25. BRP XPS 2-stroke oil
  26. Any good airplanes that use small hirth engines?
  27. Rotax gearbox swap
  28. 3D Printing?
  29. Lord Engine mounts - take 2
  30. Brand of gasoline affecting EGT?
  31. Rotax gearboxes
  32. Falcon dual EGT gauge issue
  33. Rotax 503 - oily leak from power wire port
  34. Need Help with my Kawasaki 440A2 with 2.667 re-drive and 59" 3-blade ultra-prop
  35. Possible new directions for the 2 stroke, looking to overcome reliability concerns ?
  36. 582 Rotax Coolant
  37. Rotax 503 EGTs
  38. Possibility of a sticky in this forum listing all current vendors for Part 103 engine
  39. How to make your own Gaskets
  40. Turning redrive 180 degrees
  41. more compression backwards ??
  42. Mounting a prop on a Rotax 503
  43. 3W 200 B2 Firing order
  44. Peak Intake Flow Rate/Peak Horsepower Calculator
  45. ROTAX 800R E-TEC ENGINE for Aircraft use?!?a
  46. Electronic RPM Limiter for 3W 200 B2
  47. Kawasaki 440 A, anyone running dual carbs
  48. Highest HP Stock Skidoo/Rotax Single - 36hp
  49. Is it possible for carbs on a Rotax 503 to form ice on the ground?
  50. Rotax 503 - engine miss during climb out - video
  51. Wankel Rotary
  52. Rotax 503 - air filters wet with fuel
  53. Here is a Turbo Charged 125cc Single!
  54. Any Body running straight 100LL in there 2 Stroke?
  55. Rotax 503 vs. VE Big Bad Twin
  56. Kawasaki 340/400/440/550 Rods?
  57. Tach for points ignition 503
  58. Wiring information on Rotax 503
  59. Over voltage on Rotax 503
  60. Best 2 stoke engine for ultralight flight like easy riser under 300$?
  61. Excessive fuel consumption? - 503
  62. About Lycoming YO 233
  63. If you know of any current made Belt Drives for Rotax's/Kawasaki's!
  64. Checking gear oil on inverted 503
  65. DLE200
  66. I like this. Anyone using one?
  67. any experiences with 620 or 720 rotax?
  68. School me on point ignition - Rotax 503
  69. New to Rotax 582's
  70. cheapest engine for skypup?
  71. ROTAX 277 (two stroke, single cylinder) Questions?
  72. Laser Ignition
  73. Rotax 582 prop loading question / conundrum
  74. Kawasaki 440
  75. 100 mpg airplane? or why I want more information on Simonini engines
  76. Simonini engines
  77. Rotax 277 with electric start
  78. K Drive : still available?
  79. Rotax 447 and 2 strokes in general
  80. Limbach L275e 2 stroke engines
  81. geared or ungeared?
  82. Any problems with inverted mounting of Hirth?
  83. Rotax 582 grey head
  84. Where to buy viton seals for Rotax 503?
  85. Help needed with removal of Pinion Gear from Rotax 447
  86. How to find out the year my Rotax 503 engine was made?
  87. Any 125 hp belt redrives?
  88. Sorry its not an a/c engine question.
  89. Older Hirth 2703 - Need wiring diagram
  90. Electronic Ignition Amplifier or HEI Ignitor for Kawasaki 440a
  91. A question about this used 582,
  92. Cuyna 2SI 808 L100
  93. rotax muffler mounting
  94. rotax rpm
  95. Need help identifying this engine.
  96. I wonder how this 2 stroke works.
  97. Best oils for the E gearbox
  98. Tachometer for 503 with Bosch Ignition
  99. Starting a Rotax with g/box by propping?
  100. 2-Stroke Miller
  101. Rotax Exhaust
  102. mz 201 or hirth f23
  103. 2SI 460 F40 engine parts
  104. Rotax 447 stops after 1 min
  105. CDI for radial engines
  106. Compact Radial Engine
  107. Care and Feeding of the Rotax
  108. Grass cutter engine for Skeeto replica
  109. Ignition timing off?
  110. What size of the Rotax 503 cooling fan belt is?
  111. Plug Caps
  112. Alternate to Rotax Needle Bearing 18*22*21,8 for Rotax 447
  113. Where to find affordable parts for bing 54 carb?
  114. Rotax 377 won't start
  115. No spark Rotax 447
  116. How wide of a belt for a redrive?
  117. Rotax 617/618 hp
  118. Ideal aircraft engine power curve?
  119. Paramotor engines for a fixed-wing ultralights?
  120. Ski Doo 503 snowmobile engine for ultralight help
  121. Carbon build up
  122. snowmobile to turn 38-42" pusher prop
  123. Looking for a 80hp engine.
  124. Kawasaki 440 problems
  125. Westlake 2 Stroke Opposed Piston Diesel
  126. spark plugs
  127. kawasaki 440 engine speed, and measuring Tiny Tach
  128. 2 stroke info
  129. Rotax Ignition problem. Am I a idiot or just having bad luck?
  130. PatAT Asymmetric Timing in Two-Strokes
  131. Tuning the DCDI 503
  132. My devious plan to turn a 4 stroke into a 2 stroke.
  133. micuni carb problem
  134. Rotax..Points Verses Electronic ignition....
  135. 2 stroke parts vs 4 stroke parts
  136. Question about Brian Carpenter's talk about 2 stroke
  137. Question about Hirth F-23 LW engine
  138. 3w engine
  139. Envirofit.org
  140. I don't remember Hirth made a heavy fuel direct injection engine.
  141. Rotax 503, or 582, Air Filter Mods
  142. 50HP, 5000USD two-stroker
  143. WHO MAKES A BILLET CRANK FOR
  144. 2 stroke v8
  145. Model DI 2 stroke project.
  146. A must read for 2 stroke enthusiasts.
  147. Reinforced Rotax 582 crankshaft and replacement pistons
  148. Big monocylinder adaptation ?
  149. 447 Backfire
  150. Zenoah G50D engine crankshaft sevice life extension
  151. 2 Stroke Needle Bearings
  152. 503 weak pulse?
  153. Education Needed On Propellers
  154. 277 Rotax Rebuild Questions
  155. would ski doo snowmobile rotax engine work for an airplane
  156. rotax gear box oil
  157. Fuel
  158. New guy from Maine with a Rotax 503 engine who needs some knowledgeable help.
  159. V8 Two Stroke With Expansion Cambers
  160. "A" gearbox from 277 to 377
  161. Rotax wanted
  162. Rotax Wiring
  163. Question about connecting rod big end
  164. In search of the 'possible' dream
  165. 277 Oily Spark Plug
  166. 2si Cuyuna Rebuild help part 2...
  167. Engines Choices Now There Are 3
  168. Simonini mini 2 evo vs. Hirth f-33
  169. fuel questions
  170. New Guy with no where else to go..(help)..
  171. Rotax 277 Numbers
  172. 1984 kawasaki ta440a
  173. I need to identify this Rotax 440 engine so I can get correct spark plugs
  174. Need help with a Kawasaki 440 A2 engine - Not enough power !!
  175. hirth 2706 65 hp
  176. Thought Experiment: 2 Engines, 1 Prop...
  177. need some help
  178. Rotax 582 overhaul
  179. Phantom Engine
  180. Are these Rotax 582 crank-shaft parts available
  181. converting points to cdi on rotax 447
  182. wiring diagram for hirth 2702
  183. How far on the exhaust manifold should probe go
  184. Bailey Aviation'n new 2-stroke boxer twin, the Hornet
  185. help with wiring on Kawasaki 440
  186. Rotax 582 wet fouling
  187. Where to find a reasonably priced new Bing 54 carbs for Rotax 503?
  188. Faulty tachometer impacting igniton system ?
  189. rotax 447 rebuild
  190. Zenoah 45hp ultralight engine has lost power, one cylinder smokes and runs cooler
  191. Rotax 503 dc rpm surging with no input from me.
  192. Mounting a Rotax 493 Upside down
  193. cuyuna engines
  194. 340 kawasaki
  195. Motorbike Engine?
  196. Help identifying this engine...
  197. Blue Max oil
  198. Two Stroke tuned exhaust
  199. Mikuni Carb and choke cables
  200. ARROW GT 500
  201. Marine Outboard 2 stroke exhaust question.....
  202. YAMAHA KT100 ENGINE.
  203. Cheap Ebay Bicycle Motor Kit for Prop?
  204. Semi and direct injected 2 stroke engines
  205. What do you guys think about the circlecycle engine
  206. 2-stroke piston pins
  207. Rotax 277 problem
  208. Rotax 582 exhaust
  209. Safest most reliable way to operate a 2 stroke?
  210. Cowling For 582 and Carb Ice
  211. Big 2 stroke
  212. Daiichi Kosho DK 472 engine or not??
  213. hirth f23
  214. I need Help identifying and engine
  215. question changing needle jet rotax
  216. Rotax B gearbox and max power
  217. Is your two stroke engine about to fail?
  218. Max RPM setting for the 503.
  219. Mcculloch 90 hp drone engine on a minimax airplane
  220. Rotax 583 Dual ignition head???
  221. KFM 107E Maxi engine
  222. Rotax cog belt
  223. Adapter Plate Drawings???
  224. 2 stroke Crank rebuild tools???
  225. Other Sled Engines used on Airplanes???
  226. ROTAX 462UL SPEC'S
  227. ROTAX 3D SOLID MODELS???
  228. Any ROTAX 277UL, 377UL, 447UL, 503UL Big Bore Options???
  229. Anyone know why this type of engines never caught on?
  230. Zenoah G25B-1
  231. Can you identify this engine?
  232. New Gates Fuel line woo hoo!!!
  233. 503 Rehab
  234. Converting a Fan cooled 503 Rotax to free air cooled
  235. Mikuni/Bing?
  236. 503 Rotax
  237. Starting a Rotax 503 after long storage
  238. 582 Conecttion Question
  239. Proposed Engines
  240. How long do you run your air cooled Rotax before going to take off power.
  241. Flying a 2 stroke.. Noob needs some advice..
  242. Rotax has released a Mandatory Alert
  243. Could anyone identify this engine?
  244. Rotax Exhaust
  245. Rotax 447 lose rpm
  246. McCulloch 6 cyl Drone Engine
  247. Problem starting my 503
  248. 503 Head Gasket leak
  249. My MXII electrical wires
  250. Trying to decide which engine