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Hello, I have a Yamaha 50tlr 2006. 3 carb 3 cyl engine. Motor sat for 4 years, first thing I did was pull the carbs and full carb clean with new gaskets/floats/needles.
New pump bulb.
New fuel pump.
Engine seemingly runs good for all of 15-30 seconds, before fouling cylinder 2 spark plug and starting to run noticeably crappier (misfiring) and eventually dying out. Assuming there is a still a fuel flow issue somewhere, maybe causing that cylinder to lean out? I've been through 3 plugs experimenting. Cylinder 1 and 3 are running fine, plugs stay looking clean. Cylinder 2 plug turns black very quick. I should mention I am just running a scepter portable vented gas tank.
Tried tightening air fuel mixture screws all the way in and than back out 1.5 turns like recommended. Any ideas?
New pump bulb.
New fuel pump.
Engine seemingly runs good for all of 15-30 seconds, before fouling cylinder 2 spark plug and starting to run noticeably crappier (misfiring) and eventually dying out. Assuming there is a still a fuel flow issue somewhere, maybe causing that cylinder to lean out? I've been through 3 plugs experimenting. Cylinder 1 and 3 are running fine, plugs stay looking clean. Cylinder 2 plug turns black very quick. I should mention I am just running a scepter portable vented gas tank.
Tried tightening air fuel mixture screws all the way in and than back out 1.5 turns like recommended. Any ideas?