Replaced reeds which I thought was the problem was gannarebuild carbs too a look at them they were super clean talked to former owner said they were rebuilt 2 seasons ago,put in oil pump block off. I checked pv they were moving opened up a cover not much goop cleaned itput it back. The cat is out d plate installed. There is a cat chip I thoughtmaybe the water temp was limiting the revs will not touch anything over 3000. Starts super strong and sounds soild. Ialso check the coils and wires all good. Comprssion is 130 130 125. Any thoughtson powervalve prob or cdi/electric prob? Help its getting cold upstate beenworking on it all summer !