Recently purchased a 1989 Wellcraft 18 Sport with a 1992 Mariner to work on as a project. When I bought it, the boat had been sitting unused for about 5 years and the motor wouldn't start. The starter would rise but couldn't turn the flywheel. I've made some progress and now have no trouble getting the flywheel to spin, and it tries to start...but dies immediately.
Here are the stats and what I've done so far:
1992 Mariner 150 V6 Serial # OD177534
Cylinder compression: 90, 110, 110, 110, 110, 110
New lower unit had just been installed before I bought the boat.
New battery
Replaced starter
Cleaned out cylinders and replaced head gaskets
Replaced blown voltage regulator (was blown before purchase)
Pumped out old gas and replaced with fresh
Replaced fuel hose
Replaced fuel/water separator
Primer bulb stays hard
I haven't replaced the plugs yet but I've checked them with a spark tester.
Here's a video of what happens when I turn the key. I removed the air box because I wanted to see if the carbs were getting fuel, and it appears that they are, but I don't know if it's enough.
https://youtu.be/p4Q4lhE5FVo
I can't tell if this is a fuel, mechanical, or electrical problem. Anyone have an idea of what's going on, or what I should try next?
Here are the stats and what I've done so far:
1992 Mariner 150 V6 Serial # OD177534
Cylinder compression: 90, 110, 110, 110, 110, 110
New lower unit had just been installed before I bought the boat.
New battery
Replaced starter
Cleaned out cylinders and replaced head gaskets
Replaced blown voltage regulator (was blown before purchase)
Pumped out old gas and replaced with fresh
Replaced fuel hose
Replaced fuel/water separator
Primer bulb stays hard
I haven't replaced the plugs yet but I've checked them with a spark tester.
Here's a video of what happens when I turn the key. I removed the air box because I wanted to see if the carbs were getting fuel, and it appears that they are, but I don't know if it's enough.
https://youtu.be/p4Q4lhE5FVo
I can't tell if this is a fuel, mechanical, or electrical problem. Anyone have an idea of what's going on, or what I should try next?