gpfishingdude
Chief Petty Officer
- Joined
- May 1, 2012
- Messages
- 538
We just bought a pontoon boat that has a 91 50hp Merc on it. The guy let me start it on the muffs and it ran great but the idle was set pretty high. Is there a knob that you adjust to turn the idle speed down? It has the Quick Silver controls mounted on the side of the railing next to the console. I have no idea how fast an old 50 horse Merc. burns fuel. I think the plastic fuel tank is probably a six gallon one. Anybody know how long six gallons would last at cruising speed?