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  1. Rotax 503: Need Expert Experience & Wisdom
  2. Fuel Burn question
  3. Rotax 582 / Bing carburetor question
  4. Makiing a Port Map
  5. 503 DCDI electric start
  6. Help Identify this Belt Drive?
  7. Very Good Read on Bearing Failures
  8. CHT Sensor Installation
  9. Rotax 503 - one cylinder running rich
  10. Ultralight Engine
  11. Ultra prop adjustment for RPM
  12. Old Rotax 447 no spark
  13. Exhaust attatchment
  14. Old store oil
  15. Re-jetting a Bing 54
  16. Sorry non aircraft question re a 2 stroke.
  17. Amsoil at 100:1 - good or bad?
  18. Good Video on making Custom Sleeve
  19. MZ202
  20. Honda GX race engines- 35 lbs and 25 hp
  21. Would you like to see more New Replacement Cranks, & Rod Kits, Pistons, etc.
  22. rotax 447
  23. Rotax 503 - only one cylinder running
  24. BRP XPS 2-stroke oil
  25. Any good airplanes that use small hirth engines?
  26. Rotax gearbox swap
  27. 3D Printing?
  28. Lord Engine mounts - take 2
  29. Brand of gasoline affecting EGT?
  30. Rotax gearboxes
  31. Falcon dual EGT gauge issue
  32. Rotax 503 - oily leak from power wire port
  33. Need Help with my Kawasaki 440A2 with 2.667 re-drive and 59" 3-blade ultra-prop
  34. Possible new directions for the 2 stroke, looking to overcome reliability concerns ?
  35. 582 Rotax Coolant
  36. Rotax 503 EGTs
  37. Possibility of a sticky in this forum listing all current vendors for Part 103 engine
  38. How to make your own Gaskets
  39. Turning redrive 180 degrees
  40. more compression backwards ??
  41. Mounting a prop on a Rotax 503
  42. 3W 200 B2 Firing order
  43. Peak Intake Flow Rate/Peak Horsepower Calculator
  44. ROTAX 800R E-TEC ENGINE for Aircraft use?!?a
  45. Electronic RPM Limiter for 3W 200 B2
  46. Kawasaki 440 A, anyone running dual carbs
  47. Highest HP Stock Skidoo/Rotax Single - 36hp
  48. Is it possible for carbs on a Rotax 503 to form ice on the ground?
  49. Rotax 503 - engine miss during climb out - video
  50. Wankel Rotary
  51. Rotax 503 - air filters wet with fuel
  52. Here is a Turbo Charged 125cc Single!
  53. Any Body running straight 100LL in there 2 Stroke?
  54. Rotax 503 vs. VE Big Bad Twin
  55. Kawasaki 340/400/440/550 Rods?
  56. Tach for points ignition 503
  57. Wiring information on Rotax 503
  58. Over voltage on Rotax 503
  59. Best 2 stoke engine for ultralight flight like easy riser under 300$?
  60. Excessive fuel consumption? - 503
  61. About Lycoming YO 233
  62. If you know of any current made Belt Drives for Rotax's/Kawasaki's!
  63. Checking gear oil on inverted 503
  64. DLE200
  65. I like this. Anyone using one?
  66. any experiences with 620 or 720 rotax?
  67. School me on point ignition - Rotax 503
  68. New to Rotax 582's
  69. cheapest engine for skypup?
  70. ROTAX 277 (two stroke, single cylinder) Questions?
  71. Laser Ignition
  72. Rotax 582 prop loading question / conundrum
  73. Kawasaki 440
  74. 100 mpg airplane? or why I want more information on Simonini engines
  75. Simonini engines
  76. Rotax 277 with electric start
  77. K Drive : still available?
  78. Rotax 447 and 2 strokes in general
  79. Limbach L275e 2 stroke engines
  80. geared or ungeared?
  81. Any problems with inverted mounting of Hirth?
  82. Rotax 582 grey head
  83. Where to buy viton seals for Rotax 503?
  84. Help needed with removal of Pinion Gear from Rotax 447
  85. How to find out the year my Rotax 503 engine was made?
  86. Any 125 hp belt redrives?
  87. Sorry its not an a/c engine question.
  88. Older Hirth 2703 - Need wiring diagram
  89. Electronic Ignition Amplifier or HEI Ignitor for Kawasaki 440a
  90. A question about this used 582,
  91. Cuyna 2SI 808 L100
  92. rotax muffler mounting
  93. rotax rpm
  94. Need help identifying this engine.
  95. I wonder how this 2 stroke works.
  96. Best oils for the E gearbox
  97. Tachometer for 503 with Bosch Ignition
  98. Starting a Rotax with g/box by propping?
  99. 2-Stroke Miller
  100. Rotax Exhaust
  101. mz 201 or hirth f23
  102. 2SI 460 F40 engine parts
  103. Rotax 447 stops after 1 min
  104. CDI for radial engines
  105. Compact Radial Engine
  106. Care and Feeding of the Rotax
  107. Grass cutter engine for Skeeto replica
  108. Ignition timing off?
  109. What size of the Rotax 503 cooling fan belt is?
  110. Plug Caps
  111. Alternate to Rotax Needle Bearing 18*22*21,8 for Rotax 447
  112. Where to find affordable parts for bing 54 carb?
  113. Rotax 377 won't start
  114. No spark Rotax 447
  115. How wide of a belt for a redrive?
  116. Rotax 617/618 hp
  117. Ideal aircraft engine power curve?
  118. Paramotor engines for a fixed-wing ultralights?
  119. Ski Doo 503 snowmobile engine for ultralight help
  120. Carbon build up
  121. snowmobile to turn 38-42" pusher prop
  122. Looking for a 80hp engine.
  123. Kawasaki 440 problems
  124. Westlake 2 Stroke Opposed Piston Diesel
  125. spark plugs
  126. kawasaki 440 engine speed, and measuring Tiny Tach
  127. 2 stroke info
  128. Rotax Ignition problem. Am I a idiot or just having bad luck?
  129. PatAT Asymmetric Timing in Two-Strokes
  130. Tuning the DCDI 503
  131. My devious plan to turn a 4 stroke into a 2 stroke.
  132. micuni carb problem
  133. Rotax..Points Verses Electronic ignition....
  134. 2 stroke parts vs 4 stroke parts
  135. Question about Brian Carpenter's talk about 2 stroke
  136. Question about Hirth F-23 LW engine
  137. 3w engine
  138. Envirofit.org
  139. I don't remember Hirth made a heavy fuel direct injection engine.
  140. Rotax 503, or 582, Air Filter Mods
  141. 50HP, 5000USD two-stroker
  142. WHO MAKES A BILLET CRANK FOR
  143. 2 stroke v8
  144. Model DI 2 stroke project.
  145. A must read for 2 stroke enthusiasts.
  146. Reinforced Rotax 582 crankshaft and replacement pistons
  147. Big monocylinder adaptation ?
  148. 447 Backfire
  149. Zenoah G50D engine crankshaft sevice life extension
  150. 2 Stroke Needle Bearings
  151. 503 weak pulse?
  152. Education Needed On Propellers
  153. 277 Rotax Rebuild Questions
  154. would ski doo snowmobile rotax engine work for an airplane
  155. rotax gear box oil
  156. Fuel
  157. New guy from Maine with a Rotax 503 engine who needs some knowledgeable help.
  158. V8 Two Stroke With Expansion Cambers
  159. "A" gearbox from 277 to 377
  160. Rotax wanted
  161. Rotax Wiring
  162. Question about connecting rod big end
  163. In search of the 'possible' dream
  164. 277 Oily Spark Plug
  165. 2si Cuyuna Rebuild help part 2...
  166. Engines Choices Now There Are 3
  167. Simonini mini 2 evo vs. Hirth f-33
  168. fuel questions
  169. New Guy with no where else to go..(help)..
  170. Rotax 277 Numbers
  171. 1984 kawasaki ta440a
  172. I need to identify this Rotax 440 engine so I can get correct spark plugs
  173. Need help with a Kawasaki 440 A2 engine - Not enough power !!
  174. hirth 2706 65 hp
  175. Thought Experiment: 2 Engines, 1 Prop...
  176. need some help
  177. Rotax 582 overhaul
  178. Phantom Engine
  179. Are these Rotax 582 crank-shaft parts available
  180. converting points to cdi on rotax 447
  181. wiring diagram for hirth 2702
  182. How far on the exhaust manifold should probe go
  183. Bailey Aviation'n new 2-stroke boxer twin, the Hornet
  184. help with wiring on Kawasaki 440
  185. Rotax 582 wet fouling
  186. Where to find a reasonably priced new Bing 54 carbs for Rotax 503?
  187. Faulty tachometer impacting igniton system ?
  188. rotax 447 rebuild
  189. Zenoah 45hp ultralight engine has lost power, one cylinder smokes and runs cooler
  190. Rotax 503 dc rpm surging with no input from me.
  191. Mounting a Rotax 493 Upside down
  192. cuyuna engines
  193. 340 kawasaki
  194. Motorbike Engine?
  195. Help identifying this engine...
  196. Blue Max oil
  197. Two Stroke tuned exhaust
  198. Mikuni Carb and choke cables
  199. ARROW GT 500
  200. Marine Outboard 2 stroke exhaust question.....
  201. YAMAHA KT100 ENGINE.
  202. Cheap Ebay Bicycle Motor Kit for Prop?
  203. Semi and direct injected 2 stroke engines
  204. What do you guys think about the circlecycle engine
  205. 2-stroke piston pins
  206. Rotax 277 problem
  207. Rotax 582 exhaust
  208. Safest most reliable way to operate a 2 stroke?
  209. Cowling For 582 and Carb Ice
  210. Big 2 stroke
  211. Daiichi Kosho DK 472 engine or not??
  212. hirth f23
  213. I need Help identifying and engine
  214. question changing needle jet rotax
  215. Rotax B gearbox and max power
  216. Is your two stroke engine about to fail?
  217. Max RPM setting for the 503.
  218. Mcculloch 90 hp drone engine on a minimax airplane
  219. Rotax 583 Dual ignition head???
  220. KFM 107E Maxi engine
  221. Rotax cog belt
  222. Adapter Plate Drawings???
  223. 2 stroke Crank rebuild tools???
  224. Other Sled Engines used on Airplanes???
  225. ROTAX 462UL SPEC'S
  226. ROTAX 3D SOLID MODELS???
  227. Any ROTAX 277UL, 377UL, 447UL, 503UL Big Bore Options???
  228. Anyone know why this type of engines never caught on?
  229. Zenoah G25B-1
  230. Can you identify this engine?
  231. New Gates Fuel line woo hoo!!!
  232. 503 Rehab
  233. Converting a Fan cooled 503 Rotax to free air cooled
  234. Mikuni/Bing?
  235. 503 Rotax
  236. Starting a Rotax 503 after long storage
  237. 582 Conecttion Question
  238. Proposed Engines
  239. How long do you run your air cooled Rotax before going to take off power.
  240. Flying a 2 stroke.. Noob needs some advice..
  241. Rotax has released a Mandatory Alert
  242. Could anyone identify this engine?
  243. Rotax Exhaust
  244. Rotax 447 lose rpm
  245. McCulloch 6 cyl Drone Engine
  246. Problem starting my 503
  247. 503 Head Gasket leak
  248. My MXII electrical wires
  249. Trying to decide which engine
  250. Kawasaki 440 good or bad????