2002 115 yamaha.... carburetor motor...not injected

[Je fuller]

Motor was running fine....then it started like missing....list power now.....will idle good and run but will not get any more power after about half throttle replace fuel line from bulb (which looked good).checked to make sure it was getting spark to each plug and check fuel filter... which was clean....ant ideas

[99yam40]

with the limited info I would say fuel pumps or carbs

Compression, spark, timing, and fuel could affect motor running