Boat seems to be missing 10 mph and 700 rpm

[Striper80]

So I went to the boat yesterday to set the timing. I started out by checking that the throttle blades were opening all the way and I saw that cyl 7 wasn't opening. The set screw was pretty tight nut not tight enough. Not sure how long it's been like this, I checked it last year when I did the link and sync. The linkage was full of slop when I did it.
i wanted to set the timing but it didn't work out. The tide was low and my ramp is extremely slippery at low tide, a lot of trucks have slid in over the years at AHMM. I tried backing down just till the engine was submerged and chocked my truck wheels. I fired it up and let it warm. When I tried to refit up in gear it really bit in and I didn't feel comfortable with how much movement I was getting at 2000rpm so I aborted. Doesn't help that my 4wd only works in auto right now but the boat comes first. Hopefully one of the 2 evinrude shops can get me in this week.

[Striper80]

The mechanic set the timing today. He said it was at full advance and I was lucky not to melt the pistons. Hopefully I'll get to test it this weekend.
Edit: I picked the boat up today and hope to run it tomorrow. Mechanic said it was 15 degrees advanced from where it should be. He said it sounded strong and spun right up. I'm itching to test it. I have two birthday parties to go to today so hopefully tomorrow.

[Striper80]

Had the boat out today with the family. It felt more responsive at part throttle but, I couldn't open it up because my son wasn't really enjoying it.
When I came in and was docking, the boat stalled twice when going from reverse to forward. Also since I was loading by myself I had to powerload the boat. As soon as I tried to get it on the trailer it stalled. When I pushed the key in it stayed running and went right up.

[Destroyer]

Originally Posted by Striper80

Had the boat out today with the family. It felt more responsive at part throttle but, I couldn't open it up because my son wasn't really enjoying it.
When I came in and was docking, the boat stalled twice when going from reverse to forward. Also since I was loading by myself I had to powerload the boat. As soon as I tried to get it on the trailer it stalled. When I pushed the key in it stayed running and went right up.

My advice is twofold.
1) Take it back to the mechanic that set your timing nd tell him what happened. Obviously he did not do his job right and it needs to be corrected.
2) Get yourself an electric winch for your boat. I'm partial to Powerwinches, but there are many good brands on the market, including the ones from Harbor Freight. That way you won't have to powerload your boat and you can guide it onto your trailer. My Powerwinch is the older kind that I have to use a lanyard to turn the winch on while I'm standing at the rear of the trailer guiding, but the newer ones have a wireless remote control. Either way it's a lot easier and makes one man loading an easy job.

[Striper80]

Update
I took the boat out yesterday and it ran pretty much the same as it did before taking it to have the timing set and fixing the carb linkage. It was a little windier yesterday so I couldn't hit WOT for too long but I hit 30 kts at about 5k rpms. I have a new old tach on its way because I'm sure mine is off. The shop that set the timing was recommended to me by quite a few people. The prop was definitely removed to install a test wheel and my boat was definitely put in the water. I guess if the timing was too far advanced I should've expected to lose some power.

[steplift20]

Dam ferm if
you ever move to nj you have to let me know, you will be my new mechanic

[Striper80]

I finally got out with the new used tach and the rpms were the same, 5000.

[THEFERMANATOR]

Originally Posted by steplift20

Dam ferm if
you ever move to nj you have to let me know, you will be my new mechanic

Me and Jersey do NOT go together. I despise going through there for my wife to visit her family(what kind of nanny state won't let you make aleft hand turn?). And my wrenching days are done. Between carpal tunnel, trigger finger, joint degeneration, 2bad shoulders, bad hip, knees, ankles, 12 bad discs, cronic pain syndrome, and so on, I got forced into early retirement.

[Striper80]

Originally Posted by Destroyer

My advice is twofold.
1) Take it back to the mechanic that set your timing nd tell him what happened. Obviously he did not do his job right and it needs to be corrected.
2) Get yourself an electric winch for your boat. I'm partial to Powerwinches, but there are many good brands on the market, including the ones from Harbor Freight. That way you won't have to powerload your boat and you can guide it onto your trailer. My Powerwinch is the older kind that I have to use a lanyard to turn the winch on while I'm standing at the rear of the trailer guiding, but the newer ones have a wireless remote control. Either way it's a lot easier and makes one man loading an easy job.

I only brought the boat to him to have the timing set and the issue really doesn't happen until the boat has been run for quite a while. I think it's more a fuel issue than anything.
I had a powerwinch that came with another boat and I let it go because I'm not a fan of them. I can load my boat solo the way I do it a lot faster. I just need to add a ladder to my winch stand.

[Destroyer]

Originally Posted by Striper80

I only brought the boat to him to have the timing set and the issue really doesn't happen until the boat has been run for quite a while. I think it's more a fuel issue than anything.
I had a powerwinch that came with another boat and I let it go because I'm not a fan of them. I can load my boat solo the way I do it a lot faster. I just need to add a ladder to my winch stand.

Check the search for a post(s) on the ladder on the stand. I remember a few years back that someone made a post showing the ladder they made and had welded to the post. Thing of beauty and really practical.