Hi,
I just got a 1978 150 HP Merc I6 this winter (along with a 1978 Checkmate Try-Mate 1).
Compression was around 136 +/- no more than 10 psi.
I have replaced all fuel lines and fittings, rebuilt carbs and fuel pumps (2) (they were all bad), primer bulb, then the basic stuff like impeller, gear oil.
The issue am having is it is really hard to start even when I prime the hell out of it and squirt some mixed fuel into carbs.
When it does start it will idle fine and run fine at cruse speed, then when I punch it to WOT it goes fine (not at the speed it should but think it's a prop issue) for about 30 - 40 sec then either bogs down or bogs down then turns off.
When I rebuilt the carbs they were bad and the float adjustments were all out of wack, I don't know the proper adjustment for the floats so I adjusted the one that had less flow to the needle.
I have also attempted the Link and Sync on a YouTobe video but I can not hear or see the spark so I cannot complete it.
Any help will be much appreciated
I just got a 1978 150 HP Merc I6 this winter (along with a 1978 Checkmate Try-Mate 1).
Compression was around 136 +/- no more than 10 psi.
I have replaced all fuel lines and fittings, rebuilt carbs and fuel pumps (2) (they were all bad), primer bulb, then the basic stuff like impeller, gear oil.
The issue am having is it is really hard to start even when I prime the hell out of it and squirt some mixed fuel into carbs.
When it does start it will idle fine and run fine at cruse speed, then when I punch it to WOT it goes fine (not at the speed it should but think it's a prop issue) for about 30 - 40 sec then either bogs down or bogs down then turns off.
When I rebuilt the carbs they were bad and the float adjustments were all out of wack, I don't know the proper adjustment for the floats so I adjusted the one that had less flow to the needle.
I have also attempted the Link and Sync on a YouTobe video but I can not hear or see the spark so I cannot complete it.
Any help will be much appreciated