I’m chasing an issue on my 2005 Mercury Optimax and I’m running out of ideas.
Symptoms:
- Runs rough at idle
- Hole shot is terrible — takes about 30 seconds to get on plane
- Once on plane, it runs great with no issues
What I’ve checked so far:
- Went through the entire fuel system and air...
Pooling up in the cowling mostly. But after further inspecting I found a hairline crack in the bottom of the reservoir tank. I’m hoping this was my issue.
I have a 2005 Mercury Optimax 225 and I’m trying to track down an oil system issue.
The small engine-mounted reserve oil tank slowly drains while the motor sits, even when the main onboard oil tank is full. The motor sat about 7 months recently and the reserve tank completely emptied.
Before...