Yamaha FS115 issue

swordman

Recruit
Joined
May 30, 2007
Messages
1
My 2002 developed problems last season with rpm reduction and poor power.
I replaced all filters ,plugs tested for spark replaced the fuel filters added a full size air/wat sep. Finally broke down and went to dealer he computer checked it
verified my other work replaced a cracked fuel bowl and gave me it back. It still runs poor 75% power no apparent misfiring but rough at full throttle with low output. starts fine idles OK
runs like crap. Any ideas what I can do other than go back an get hosed by the dealer?
 
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