If motor is tilted down it starts and runs great while idling or at low speed. Comes out of the hole fine tilted slightly down. Once tilted to "normal" it sputters and dies unless I hit the choke. No problems at WOT once I have the tilt adjusted to run properly at WOT. Bulb is firm, replaced gas, removed and cleaned gas tank (aluminum), running SeaFoam, cleaned carbs, changed fuel filter and plugs. Is this a float problem or fouled jets? Any suggestions would be greatly appreciated.