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  1. Compression testing
  2. 550 westcoast mod
  3. 1100 Exhaust Port clean up
  4. Goatcher's 1993 Pro Mod 550
  5. Engine sealing question?
  6. Piston ring eng gap on Hammer 701
  7. ecu reflashing and high performance pwc
  8. 650sx 105 build cost
  9. 750 PJS head damage... can it be re-cut?
  10. Holeshot and midrange accel.
  11. Prop
  12. Seadoo 787 sleeper ?
  13. SXR Hammer Base Gasket
  14. offshore raing.?
  15. Port matching 61x cylinders
  16. acceptable bore taper in yamaha twin?
  17. harry im sending u my motor
  18. Fuel Reversion...Revisited
  19. 900/1100 questions
  20. 550
  21. Piston/cylinder clearance ona Yamaha superstocker
  22. kawi 750xi cyldiner porting
  23. Wb2 1200
  24. 98 951 xpl silver..
  25. Tigershark 650 head
  26. is this true...
  27. westcoast impellers
  28. jetting
  29. Bought used ski, how can I tell if group K parts?
  30. Polaris 780 performance mods
  31. SXR 849 or Factory Wet Pipe?
  32. SJ Drive Line
  33. sxr 800 carbs
  34. Sleeved 750 cylinder
  35. Porting/Polishing Question. +Much More
  36. Coil Question ???
  37. Group K Back Up & Running from the storm
  38. Tornado Damage at Group K
  39. 650sx impeller...
  40. sxr waterbox
  41. GroupK 850 SXR Big Bore kit question.
  42. Proper Squish clearance
  43. 760 wb 2
  44. weight off a lightened 750 kawi flywheel?
  45. Question for Harry
  46. carb jetting 08 SJ?
  47. 701 wave blaster
  48. 720 rotax starter on but motor not running
  49. Greater performance 701 head O-rings ? PLEASE HELP
  50. Carb question
  51. Air Filter Jetting question
  52. 850 big bore tuning
  53. wb2 protec pipe getting hot
  54. carb replacement
  55. 44mm carb on 650sx
  56. backflushing
  57. 845 in Kawasaki X2
  58. Yamaha 845 big bore
  59. CDK II Help??
  60. Ultra 150 Carb Maintenance?
  61. Mod stock carbs, 46mm or 48mm Novi's
  62. Need Input on a Group K Motor
  63. sxr850
  64. xl1200ltd xlt1200 to a group k 1390
  65. Feedback for GroupK
  66. 650 open superjet
  67. Factory b pipe
  68. Group K motors
  69. wb2 mods
  70. Group K - Fuel filter setup
  71. 750/650 timing
  72. Mikuni 40's re-worked by NOVI to dual 42's problems
  73. Look Out I'm Hammered
  74. Stroker Cranks
  75. 1991 Waverunner LX 650 starting problems
  76. 6m6 case can they support big bore?
  77. Another SBN jetting thread
  78. tuning and jet increments
  79. Js550 help...
  80. anything to gain on dual 42 keihins on a 750 bigbore?
  81. Group K 753 Big Bore cylinder jetting
  82. K650 case porting
  83. Group K 61x
  84. Current single-carb recommendations
  85. Dry vs Wet torque specs
  86. Lime Green Head
  87. SXR Crank True & Weld
  88. sxr dry pipe
  89. SXR Sleeper jetting specs
  90. pressure test kit
  91. Turn Around Time?
  92. piston size
  93. 787 deto head ?
  94. Horsepower estimate big bore 850
  95. superjet seize
  96. Big Bore SXR Lites Pistons
  97. porting and boreing
  98. 91 650 x2 jet ski
  99. 91 650 x2
  100. 12 psi gain per each .0010 milled off ?
  101. 42 novi jetting?
  102. av gas
  103. engine assembly
  104. Pulling cylinder for 850 mod and porting
  105. Malcom Smith is My New Biggest Hero
  106. 96 xp carbs for a 96 hx
  107. Crankshaft Rebuilding Questions
  108. Which Cylinder for Lites
  109. 1999 gsx ltd
  110. A/F separator 750 MRD application
  111. Larger diameter couplers decrease pump-load to the engine?
  112. Info on head for a 1020
  113. Kawi 650 header pipe
  114. 28cc domes on my sxr
  115. stxr shaved heads...prices
  116. 750 Machine Work
  117. any testing done with poor man's race fuel
  118. Dual Carb Intake Cross Over Tube
  119. turn around time for 701 upgrade
  120. boring exhaust manifold and head pipe
  121. 650sx w/ Factory pipe - Solas Spyder KA6
  122. midshaft heat
  123. 750sx cyl vs SXR cyl
  124. Group K sleeper w/Coffman PIpe XPL
  125. porting? seadoo
  126. Over sized impellers...?
  127. piston? on sleeper kit
  128. 08 Superjets in lites class
  129. Advent ignition on an SXR Hammer 1
  130. From Big Bore to Hammer
  131. 650sx cylinder
  132. 850cc SXR w/ wetpipe questions
  133. Half inch cooling or Dual cooling???
  134. Question about Group K porting
  135. Large ports, low compression build...
  136. repairing pitted head domes
  137. How to tell if groupk work has been done
  138. Superjets cracking cylinders - preventative measures
  139. need help please
  140. Group K intake manifold mod
  141. SJ 845 Big Bore Kit
  142. SeaDoo HX questions?
  143. harry......
  144. Group K carb circuit upgrade
  145. Gp 1200 r build
  146. cases drilled
  147. Wet Jet 61x (tall one) Westcoast ?
  148. Blaster dual 38 mikuni set up
  149. Pop off too low on my dual 44 SBN setup...
  150. Group K is off to the World Finals
  151. Porting 66v cylinders after replating?
  152. Search wiring diagram 800 SX-R with dc cdi
  153. 48 novi's on singal pipe stxr
  154. 650 to 701 Carb ???s
  155. Piston/Ring Clearence Wiseco 83.00mm 750 sx
  156. JS 300 hull - dropping in a 650cc
  157. 845cc IJSBA Limited Class Super Jets
  158. Misc GroupK questions...
  159. SuperJet 701 Sleeper - compression > 180?
  160. full circle cranks
  161. Bore first, then Sleeper? Or vise-versa.
  162. How to check superjet timing
  163. SXR 849cc Pistons
  164. Question for Harry
  165. Question about 785 porting
  166. 845cc SuperJet Freestyle Tech Info
  167. 785 "sleeper kit" pipe questions.......
  168. SXR Hammer differences
  169. Harry, Qs-Winter build. Porting of my 650 x2-
  170. Motor Build
  171. Need Help
  172. 93 550sx with mods..Popoff question
  173. 62T/61X aftermarket reeds and OE cage
  174. Super Jet question
  175. 2001 Stock Yamaha GP1200R (water bypassing ?)
  176. IJSBA SXR 849 Stock Class "Upgrade"
  177. 550 sx
  178. Yamaha waveblaster800 mods
  179. Any Freestylers going to APBA LB Spring National??
  180. Yamaha 65U & 63M
  181. How to determine cause of slight bog
  182. Vilder Ignition
  183. Jetting help
  184. Question for Harry Klemm
  185. "Formula 650" engine mods
  186. Cutting 760 stock head for 85mm flat tops?
  187. superjet jetting question
  188. Yamaha 1100 upgrade help
  189. 650sx help
  190. Enhancer or No Enhancer!
  191. SJ play ski whats next?
  192. How far can I safely bore a twin Yamaha Cylinder???
  193. modified triple 38 mikuni Jetting
  194. 00'rx 951 transition
  195. 750 Base Gasket OEM or Copper?
  196. superjet bog
  197. 750 SX factory pipe cooling line question
  198. SXR 2003/2006 electronics
  199. ocean pro 650 cyl
  200. 750 head fit a 650
  201. 750 sxi/800sxr
  202. Cylinder difference/preference
  203. Jetting starting point for SBN38 on 440
  204. sent you an e-mail
  205. GroupK Seadoo Exhaust plumbing kit
  206. Any idea on the length differences of Kawasaki Driveshafts?
  207. SBN 44 Jetting for a JS440
  208. 787 head mod compression
  209. Nozzle boring
  210. Hammer 1 SX-R ?
  211. Big Pin / SXR cylinder porting
  212. 650sx nozzle bore
  213. The wheel that makes it fly.
  214. Curious on your jetting recommendations
  215. Stock '99 gp800 Yamaha Premix Question
  216. ? on 787 sleeper
  217. jetting help on a bigbore
  218. Kawa 750 piston ring gaps
  219. 550 engine prices
  220. 96 big pin 750sx bent rod
  221. 800 pv in sj
  222. spark plug gap / and fuse ?
  223. Fx1 carbs
  224. reed spacers or stuffers on an SXR
  225. superjet #s
  226. Big Pin vs Small Pin Single Carb
  227. piston clearance
  228. 550/650 conversion ski
  229. What is this?
  230. 550 coffamn pipe?
  231. 1390 Bb
  232. SXR set up
  233. Resleeve
  234. blaster1
  235. seadoo sleeper?
  236. FLywheel?
  237. 66E YAM 800 cylinder and head question
  238. 900 zxi
  239. decieded on group k ...
  240. 440-550 build
  241. 750 Mods
  242. exit Nozzel
  243. A/F separator
  244. yamaha 89mm pistons
  245. Small pin crank
  246. Harry do you have any pics of the Cowasaki?
  247. Impeller Pitch...
  248. Head Sealing on 82.00 750
  249. 849 kit with 650 ignition, exhaust?
  250. Jetcraft Eng. dual resonator mufflers