will not start

[jeff6898]

1995 Johnson 150 OceanRunner J150 EXEOM

Carbs rebuilt 1/2017 110 compression all cylinders great spark

Would not start then will start for a few seconds cuts right off blue smoak. Finally after squirting in carb cleaner starting running for a few minutes the cut off. Got it to stay running after a while took to lake and it ran perfect.

A couple days later tried cranking on muffs toof forever to start but only ran a few seconds will not start at all now. Fuel bulb is hard. Ani ideas?

[boats.net]

If it runs good once get it started then check fuel primer system to see if its working and getting fuel to it and fuel out of it when activated.

[jeff6898]

Well got it to finally keep running. Took it to the lake and it ran great no hesitation ect. Past 3 days will not start again. It will only run for a few seconds and shut right off lots of blue smoke. Checked compression again same 110 across the board and good spark. IS it possoble a hole in the fuel pump side diaphragm? IS there a way to find out with out taking it apart? I am at a lost

[boats.net]

Heavy smoke at start up usually means VRO pump is leaking, Probably need to replace VRO.

[jeff6898]

Replaced cap on oil tank no difference. Tried again and it would just turn over never started not even for a few seconds. Got a bottle filled with fuel mixed in oil and squirted into carbs started for a few seconds cut right off lots of smoke. will stay running if I keep squirting the gas into the carbs. Once I stop spraying cuts off.

[boats.net]

If it is flooding cylinders with oil then the oil will short out spark plugs, probably need to replace VRO pump and clean carbs.

[jeff6898]

Well have no idea how but it is starting great. Didn't do anything to it. Let it sit for 8 days went out cranked right up with a bump of the key. Didn't hesitate stall or anything. It idled great Runs great ect and starts every time with one turn of the key.