Hi all,
I am finishing rebuilding a 2000 Mercruiser 3.0 that has the newer 14" flywheel and coupler, however the coupler is rusted out.
I have 2 spare engines (1995 & 1997) that have the older 12 3/4" flywheel/coupler which are in great shape.
Would there be any issue using the older style...
So here is the conclusion, I rebuilt the carb and noticed the gaskets were not that fresh.
New fuel pump diaphragm and spark plugs and engine runs like a champ, have had it out twice and had zero issues with the motor.
Thanks for all the help!
Carb kit is on the way. I also got new spark plugs, old ones look fine but who knows how old they are. I could not find NGK BUHW plugs any where which is what is currently installed so I purchased some Champion L76V plugs which should work fine (please correct me if I am wrong).
Will update...
I added sea-foam to the tank a few days ago and ran on the muffs to get it into the system.
Took the boat out again today, I can get it on plane at about half throttle and get to WOT about 50% of the time. I noticed when throttle is anything over half there is a slight oscillation in the rpm's...
I believe it's the gauge, I don't have another one to test the compression.
When I was removing the spark plugs I noted that both cylinders were very clean and the cylinder walls were clean with no pitting or scratches.
I highly doubt the engine would run as it does right now with bad...
Forgot to mention that there was no spark on the 2nd cylinder, which was solved by a new sierra switchbox.
So I know that I have spark on both cylinders, carb float was replaced when previous owner rebuilt it (I checked the carb by submerging it in fuel for a while and checking that it still...
Hi all,
I recently picked up an aluminum boat with a mercury 25XD (Serial #A194312) which would start and run for about 2 seconds then die. Previous owner rebuilt the carb with fresh gaskets, I still decided to take it apart and blow everything out, set idle mixture (2 1/8 turns out) and it ran...