Search found 433 matches

by Jay415
31 Jul 2012, 17:21
Forum: Motors
Topic: 2-stroke 25HP mercury stalls while accelerating.
Replies: 74
Views: 10883

2-stroke 25HP mercury stalls while accelerating.

In the primer chamber after removing the brass plug, there is a spring, then a silver ball, then a split ring and a rubber o-ring.

How do I get that split ring out? I tried picking it out with an awl.

Also how do I get the new one in?
by Jay415
28 Jul 2012, 23:15
Forum: Motors
Topic: 2-stroke 25HP mercury stalls while accelerating.
Replies: 74
Views: 10883

2-stroke 25HP mercury stalls while accelerating.

What do the bleeder hoses that come from the reed block cover and go into the side of the cylinders do? I noticed the one on the bottom cylinder is wet with oil around it at the cylinder. Not a lot, but the top one is bone dry.
by Jay415
28 Jul 2012, 23:11
Forum: Motors
Topic: 2-stroke 25HP mercury stalls while accelerating.
Replies: 74
Views: 10883

2-stroke 25HP mercury stalls while accelerating.

No just the acetone spray. Even though it didn't look dirty, it looks almost brand new now except for a little green around brass parts. I didn't rebuild it yet. Kit is expected to be here on the 31st.
by Jay415
28 Jul 2012, 19:23
Forum: Motors
Topic: 2-stroke 25HP mercury stalls while accelerating.
Replies: 74
Views: 10883

2-stroke 25HP mercury stalls while accelerating.

Ok here's a stupid question. I tried paying attention to every little detail, but I missed this one. (prob due to the gas spilling all over the place when I took the bowl off :lol:) Which way does the float go? 1 or 2? Or does it even matter? I'm guessing 1. 1 ImageUploadedByTapatalk1343517750.37693...
by Jay415
28 Jul 2012, 15:10
Forum: Motors
Topic: 2-stroke 25HP mercury stalls while accelerating.
Replies: 74
Views: 10883

2-stroke 25HP mercury stalls while accelerating.

I broke down the carburetor to clean it and it really wasn't that dirty. A little bit in the fuel pump and around the main jet but not in the port. I sprayed everything down and through all ports and openings with Gum Out carb and choke cleaner. Just waiting for the kit to come so I can rebuild it. ...
by Jay415
28 Jul 2012, 12:05
Forum: Motors
Topic: 2-stroke 25HP mercury stalls while accelerating.
Replies: 74
Views: 10883

2-stroke 25HP mercury stalls while accelerating.

WHAT A RELIEF!!! I was really nervous that I made a bad purchase with this motor. I was getting 90psi compression in each cylinder. I got my service manual in and specs say that compression should be 120psi or better. Well, the big, big mistake I did was buying a compression gauge from Harbor Freigh...
by Jay415
24 Jul 2012, 05:59
Forum: Motors
Topic: 2-stroke 25HP mercury stalls while accelerating.
Replies: 74
Views: 10883

2-stroke 25HP mercury stalls while accelerating.

Ok makes me feel a little better.thx
by Jay415
23 Jul 2012, 21:14
Forum: Jon and V boat Conversions and Modifications
Topic: Jay415's Alumacraft MV1648
Replies: 308
Views: 63165

Jay415's Alumacraft MV1648 -New Motor 7/15/12

Thanks! I like those lights a lot! That exactly what I was looking for!

As for the motor I'm happy I got the 25 also. I just hope I chose the right one! At the very least it'll help me make an more educated decision for future purposes!
by Jay415
23 Jul 2012, 20:00
Forum: Motors
Topic: 2-stroke 25HP mercury stalls while accelerating.
Replies: 74
Views: 10883

2-stroke 25HP mercury stalls while accelerating.

If you turn the choke knob that advances the timing. Where is the choke knob? Are you talking about the primer knob? That motor should have 125# or better for compression.Put some 2 stroke oil in the cylinders & see what your compression is than.If it's up than you have bad rings or other problems....
by Jay415
23 Jul 2012, 15:50
Forum: Motors
Topic: 2-stroke 25HP mercury stalls while accelerating.
Replies: 74
Views: 10883

2-stroke 25HP mercury stalls while accelerating.

Ok did some more diagnostics. Looks like this is going to be a big learning experience for me. Checked compression again and got 100psi in each cylinder cold. Engine warmed up it drops to 90psi. Both cylinders are the same though. Sound like a blown head gasket? What else would cause low compression...
by Jay415
23 Jul 2012, 10:50
Forum: Motors
Topic: 2-stroke 25HP mercury stalls while accelerating.
Replies: 74
Views: 10883

2-stroke 25HP mercury stalls while accelerating.

I think my description of pulling the choke has been inaccurate. I think the choke is controlled by the motor. The knob itself says "pull to prime". When you pull the knob it depresses a little blue plunger on the side of the carburetor. When the engine is off, pulling the knob sounds like it is for...
by Jay415
22 Jul 2012, 19:27
Forum: Motors
Topic: 2-stroke 25HP mercury stalls while accelerating.
Replies: 74
Views: 10883

2-stroke 25HP mercury stalls while accelerating.

Did you try opening the cap on your gas tank? How old is the gas tank and the fuel lines? I haven't opened the gas cap but the vent on the cap is wide open. Gas tank and line from tank to motor is brand new. Lines in the motor, who knows, might be original. Gas is fresh from last week. As an old je...
by Jay415
22 Jul 2012, 19:09
Forum: Motors
Topic: 2-stroke 25HP mercury stalls while accelerating.
Replies: 74
Views: 10883

2-stroke 25HP mercury stalls while accelerating.

Ok cool! I went out today. Here's a good example of what the motor does. You can't hear it in the video, but I noticed today, it sounds like it knocks at idle speeds and just above idle speed. Wide open no knock. At the end of the video after slowing down completely it bogs again when accelerating. ...
by Jay415
21 Jul 2012, 09:46
Forum: Motors
Topic: 2-stroke 25HP mercury stalls while accelerating.
Replies: 74
Views: 10883

2-stroke 25HP mercury stalls while accelerating.

I ordered a service manual off eBay last night. It wasn't the one I originally thought. I used your suggestion and went to boats.net to get the part number. Not sure if it's OEM but it looks like it.

https://pages.ebay.com/link/?nav=item.vi ... 0699032903
by Jay415
20 Jul 2012, 22:34
Forum: Motors
Topic: 2-stroke 25HP mercury stalls while accelerating.
Replies: 74
Views: 10883

2-stroke 25HP mercury stalls while accelerating.

Ok thanks! I feel like I know nothing! I promise I'm not that dumb! Lol