Freestyle When you finally get an engine tuned

Been struggling with a new top-end for nearly a year, fixed all the manufacturing defects and poor porting. 5mins of riding today
 

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All the new power uncovered the weak link...or coincidence. Either way that’s a bummer, maybe time to get one resplined at the correct length from a one piece blank rather than sectioned and welded
 
All the new power uncovered the weak link...or coincidence. Either way that’s a bummer, maybe time to get one resplined at the correct length from a one piece blank rather than sectioned and welded
Definitely changing my machining guy, prefer threaded joint and welded V-seam. Places here don't do full shafts.
 
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