Just took my new 60-HP Mercury EFI 4-stroke out for first two hours of break-in today.
All-in-all, the experience left me wondering about my $6,100 purchase.
One question for someone in the group who knows more about the Mercury 4-strokes than I do....
On the starboard side of the intake manifold, there is a solenoid with two barb fittings coming out of it. The lower one had a hose running from the front of the intake manifold connected to it. The other fitting was left open. I put my finger over the open fitting and there is vacuum.
Wouldn't this be a vaccum leak, and therefore, something to plug?
If this is an oversite, and the open fitting should be plugged (or worse yet...connected to somehing that it is not), it just adds a little more frustration regarding the less than perfect job of rigging I received when I purchased this new motor for my boat.
When I first fired it up the idle was up around 3000.
Then I took the Cowling off and looked around and couldn't see anything out of order. However, when I remounted the Cowling, the idle was down at a normal under 1000 level. I went ahead and ventured out into the river. When I tried to idle again, the RPM's were way too high.
Another look "under the hood" revealed that a wire had somehow gotten behind some throttle linkage and was the reason for the intermittant elevated idle speed.
Once I got that under control, the two hour break-in cruise was as expected.
That first hour keeping her reigned in to no more than 3500 RPM was a drag. Second hour running up to 4500 RPM with 1-minute jaunts at WOT was more fun! These 4-strokes do have quite a punch out of the hole!
I will need to go up a inch in pitch as I need to hold her back a bit to keep under 6,000 RPM at WOT. Came with a 10-3/4 X 12 and pretty sure I will be happy with 10-1/2 X 13.
Anyway...anyone with info about the open vacuum fitting??? I apreciate the help!
All-in-all, the experience left me wondering about my $6,100 purchase.
One question for someone in the group who knows more about the Mercury 4-strokes than I do....
On the starboard side of the intake manifold, there is a solenoid with two barb fittings coming out of it. The lower one had a hose running from the front of the intake manifold connected to it. The other fitting was left open. I put my finger over the open fitting and there is vacuum.
Wouldn't this be a vaccum leak, and therefore, something to plug?
If this is an oversite, and the open fitting should be plugged (or worse yet...connected to somehing that it is not), it just adds a little more frustration regarding the less than perfect job of rigging I received when I purchased this new motor for my boat.
When I first fired it up the idle was up around 3000.
Then I took the Cowling off and looked around and couldn't see anything out of order. However, when I remounted the Cowling, the idle was down at a normal under 1000 level. I went ahead and ventured out into the river. When I tried to idle again, the RPM's were way too high.
Another look "under the hood" revealed that a wire had somehow gotten behind some throttle linkage and was the reason for the intermittant elevated idle speed.
Once I got that under control, the two hour break-in cruise was as expected.
That first hour keeping her reigned in to no more than 3500 RPM was a drag. Second hour running up to 4500 RPM with 1-minute jaunts at WOT was more fun! These 4-strokes do have quite a punch out of the hole!
I will need to go up a inch in pitch as I need to hold her back a bit to keep under 6,000 RPM at WOT. Came with a 10-3/4 X 12 and pretty sure I will be happy with 10-1/2 X 13.
Anyway...anyone with info about the open vacuum fitting??? I apreciate the help!
