Yamaha, 115TXR, 2006

by Robert
(Midway, GA, USA)

My motor cranks, idles and runs great until I get to about 4000 rpm and then it starts bogging down. I can pull the throttle back a little and will run fine below 4000 rpm. It's been in the shop twice. It has new plugs, injectors, water separator, bulb, all fuel filters, vst filter and needle valve. New fuel but tank was not cleaned. Sample of fuel looks good. Not related but new water pump also. Any ideas on what else I might try?
Thanks

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