1998 30hp Yamaha SG

[JOHNCCARLSON]

Engine bogs when you first give it gas and then takes off and plains. Iv'e cleaned carbs, new gas, new fuel pump diaphragms, new spark plugs . new gaskets..What do you think about the reeds not working. Help Please

[99yam40]

might check timing to see if it is advancing properly, but still sounds like carb issue

[Leafman1]

I had the same problem on a 25 3 cylinder 2 stroke. I replaced my fuel line, bulb and added a water/fuel separator and that did the trick. Over time the inside of the fuel line brakes down and will clog up filters and orifices.

[robert graham]

I had the same problem on a 25 3 cylinder 2 stroke. I replaced my fuel line, bulb and added a water/fuel separator and that did the trick. Over time the inside of the fuel line brakes down and will clog up filters and orifices.

My 2nd on this!...that Walmart fuel/water separater($27) is a great investment in preventive maintenance. Good idea to drain your carb float chambers(drain screw/bolt) a couple of times a year, and especially when motor won't be used for several weeks or months.