first time out with 1994 evinrude 25hp-?'s

miketheknife

Cadet
Joined
Jan 18, 2014
Messages
6
Purchased an E25RER with an 11x9 prop about 2 weeks ago.
Cleaned carb.
New impeller.
New plugs.
Sync and link.
Compression 118# on both cylinders.
Ran motor in a barrel, started on second pull, smooth idle.
Took it to a local water reservoir for a test run, Had a 12-15mph wind with chop. Started and eased out of the n/w zone and ran at about 1800rpm till motor warmed. Boat planed at about 2250rpm and 15mph GPS. 2850rpm was 19.5mph. At about 3000rpm, the motor started cutting out and the shaft jumped out of the water. I cut back the throttle immediately and the motor idled a little rough for a few seconds and then smoothed out. I was in 60+ft of water and almost positive I didn't hit anything.
I tried again slowly. At 2940rpm, felt some vibration, so I backed down. As long as I stayed at 20mph or less, everything was great.
This is only the second outboard I have owned. Could it be the wrong prop causing this?
All input will be greatly appreciated,
Mike
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
38,591
Have you inspected the impeller ???--Possibly overheating and cutting back the power to protect the motor.
 
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