Javelin2000
New member
Hey everyone, i have a 200hp johnson thats losing speed and power. Once i launch initially it will run almost normal but will only get up to 52-55mhp. Then once i go to make another run it will only run in the low 40s. I've replaced spark plugs, the power pack, fuel filter/pump, and gas lines. This motor ran strong when i first got it a year ago. Topped out at 62 mph. Can someone please help? Thanks in advance.