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Old 11-10-2004 | 11:07 AM
  #16  
ksechler
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From: Frederick, MD
Default RE: GP Ultimate Bipe and engine size?
You can fit the .61FX fine. You have to cut a hole in the cowl for the Cyclinder head, but you will with the 4-stroke too. I have a .61FX in my Ultimate and enjoy unlimited vertical. It's great.
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