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Where to start a mechanic I guess (lol)1999 Mercury 125 hp oil injection removed it's been cutting in and out lately until full throttle then runs fine till today started fine this morning went to start back up to head in started ok just seem to be burning rich then wouldn't open up at all got to ramp shut motor off to back truck in then motor want start? :banghead
Step 1. Uninstall motor from boat
Step 2. Install motor on maintenance stand
Step 3. Drain oil from crankcase if you wish
Step 4. Ditch old mercury and buy a new Yamaha
Step 5. Install new Yamaha
Step 6. fishing, againrotfl
Man yeah that sounds great! you need my address to ship that too ( Lol) I be glad to do that if you buy me one :Rofl
Well, my wife is dictating I take her down to Bonifey to buy lottery tickets this weekend. If we win - you get a new motor:)
I hope you win.! :biggrin
Sounds like a fuel problem. Start at the beginning check compression on all cylinders, then check spark on all cylinders. If you have compression and spark you know it's fuel problem. Check fuel lines for a fuel leak and check primer bulb to make sure your fuel line is holding pressure. If that's good most likely looking at a carb rebuild possibly a fuel pump. Someone might be able to give you some better info but it's a place to start.
Ok thanks
U been running ethanol gas??
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No sir! I wouldn't pour that junk on a yellow jacket nest lol Use noting but 100% unless they have us deceived that's what I been paying for anyway! :Rofl
Mine (2000 Mercury 150) acted similar to yours and it ended up just being a fuel filter stopped up. Checking it is quick and easy.