Evinrude 70hp problem
Hi all, firstly I will apologise for my total lack of understanding, but this is my first rhib and outboard so I'm on a learning curve.
Right, my problem, ran the engine yesterday on Loch Fyne and at first it was running sweet, we did a run out and back opened it up to see what she would do, 25 knots and all was great, on our second run out we picked up a fishing line around the prop, jumped in and got it all off. After that we set off again and all was well after 10 mins of running we arrived close to a dive site I slowed down, we decided to go to the next site, when I opened the throttle all I got was 7 knots. I put her into neutral set off again and I got power, then it dropped again I found that by moving the throttle leaver you could feel the engine bite and then it was of at full revs.
Engine idles fine, selects gears fwd & rev, no miss fires just this loss of power.
I have the workshop manual but I'm looking for some info in simple terms for a simple newbie!
Thanks for any help.