1993 johnson 150

[martyman03]

This is my problem. i put the boat in the water it idles fine. i apply a little power and the motor bogs down and dies. i let it sit for about 15-20 mins fire it up and it runs fine the rest of the day. any ideas? i am lost. i ck'd the plugs when it won't fire off and there is no ignition. but this only happens just after i put it in the water. off the hose no trouble.<br /><br />thanks in advance, Marty

 

[Steve135]

Re: 1993 johnson 150

Martyman03, Next time its in the driveway try to put duck tape on the exhaust where it comes out the prop. This will cause back pressure like being in the water! If it does the same thing at least you'll know its back pressure. If it awalys did it and never went away after 15 minutes we could say timing. But yours goes away for the day I would say lack of fuel after sitting or priming.<br />steve