2000 Johnson 150...engine stalls on acceleration.

jdaniel594

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Aug 13, 2012
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Symptoms....Engine cranks and accelerates ok for first crank of day. After engine is warm the engine bogs down and stalls when giving throttle unless I advance throttle to 1200 rpm and slam in gear. A continuous beep stays on when cranked. This beep is not as loud as warning horn. Primer bulb will not stay hard during operation. Runs great at wot. Idle did have some sneezing but hasn't since I ran some deacons through it. Took boat out last weekend to see if problem is the vro pump. I would prime bulb, crank engine, jump in seat, and go. Worked fine like that for a few hours and then started stalling out again on acceleration. I am thinking the air temp. might have contributed some how. It was cool all morning and soon as it hit about 90 degrees outside stalled out again. Anybody have any kind of same experience? Power pack was replaced.
 
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