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Sometimes the floats just stick, after a layup. They likely get better after use. If it persists, you may need to revisit the carb.

Merc has a specific way to link and synch it's motors. I therefore think a Merc Service Manual is a good idea for you. Generally, you set the idle pickup timing to spec, and adjust the carb to open as the timing hits that timing specification. You then set max spark advance. You set these...

Sierra used to make motor mounts. They were all rubber, vs the rubber and metal of the OEM stuff. I used them and they were fine. They were about $50 ea. The top motor mount bolts were grade 7, 9/16 fine thread if I remember correctly. I had to cut them, as the motor mounts could not be...

Five the the holes should be the same size. The 6th hole will be larger, since it has no insert. I would say you have white plastic inserts in the pictures provided.

Gee, if the OEM wiring harness is going bad. You could replace it. Your spark vanishing is bad, no?

Gee, change the engine oil if a 4 cycle motor. Change the gear oil and clean the carb. Run her a bit and then rebuild the waterpump.

Gee, 1200 RPM seems awfully high. She will slam into gear, no?

Trim tabs are often an add-on item. First look for a separate wire on the battery. Failing that see if you can trace the wires from the pump to electric supply. Remember, trim tabs are hydraulic in the up direction, and spring loaded for down. So you will generally only have 2 wires on them.

No, bleed inserts are small black plastic restrictors that fit under the transfer covers. At least I think they go under the transfer covers. It has been a long time since I looked at an IL6. Number 3 in this diagram. They help with idle quality...

CDI electronics likely makes parts for your motor. They used to have a troubleshooting guide as well. Failing that a Mercury brand service manual should give resistance specs for the stator.

While you have it apart, check the swivel pin for binding. If those two bushings get corroded the motor will be hard to steer, and if it is all together, you will hate yourself. Ditto on the top and bottom rubber motor mounts. See if you can thru drill the broken water cylinder head water...

If it is a permanent magnet starter, it must be put back together with the magnet in the same orientation, or it will run backward. It makes sense to match mark the ends to the center magnet.

Regular form-a-gasket is not usually gasoline resistant. It will disolve and cause more trouble. Permatex makes a gasket dressing that is impervious to gas. It is not real common in stores, so it pays to get it's stock number and then see who has it. Use a rubber gasket and the dressing...

If you hook up the jumper cables backward, the motor will spin the wrong way and not engage the bendix.

Chrysler motors did not come on too many boat types, and Chrysler did own some boat makes. You might start there. I presume there is no HIN stamped into the starboard side of the transom? Also, if you can find out the year of the motor, the boat year may be the same.

Gee, Crowleymarine should have that info, and a whole lot more.

Have you tried the Super Clean from Castrol? It's generic is Purple Stuff. It is a serious alkaline cleaner. It is a good degreaser. It is nearly as good IMO as Spray9, and a whole lot cheaper.

If you cannot find it, you will need to drop the gearcase and check for gear selection manually. Also check the shift rod height. If someone had the gearcase off, they could have changed it.

Gee, usually it is the reverse. The shift rod needs to go up to get into forward. Look at the linkage under the carbs and see if it moves. The linkage needs to slide to starboard to release the shift rod if you want to drop the gearcase. When the linkage moves starboard, it can hang up on the...

That is a terrible job by the rebuilder, if you want to call them that. When I installed my rebuilt powerhead, you could see that every bolt had been removed, the holes retapped, and new gaskets installed. Obviously, some of the orig bolts had snapped, but these were repaired as well. My...