03 Yamaha SX200 dropping 100 RPM

[ncsalt21]

I have a Yamaha 03 SX200 HP drops about a 100 RPM when *****ing about 1500 to 1800 RPM have changed plugs and ohm all spark plug boots with then spec still didn't help motor idles okay and above 2500 runs find.

Thanks for help

[boats.net]

Probably just the timing fluctuating a little at that rpm, if so not much you can do other than speed up or slow down.

[ncsalt21]

Thanks I hope that's all it is I don't want to mess up my motor