Can a Mercury 70 hp bog down at full throttle?
Mercury 70 hp bogs down at full throttle. Discussion in ‘ Outboards ‘ started by willyyes, Mar 25, 2011 . Anyone have a problem wiht a merc that when you open to full throttle it runs fine for a few and then bogs down? I do. It will run fine at half throttle after that. It is snot over heating and it has a new water pump and new fuel filters.
Why does my Mercs motor bog down at high RPM?
Turned out, the inner lining of the gas line–Mercs best–has a separate membrane. This membrane–very thin–separated inside the line. When I would cruise at 2/3 throttle or less, no problem. Give it the full throttle and she’d bog down because it was crushing the inner membrane. New hose for $40 and problem solved!
What causes a motor to bog down at full throttle?
Click to expand… Usually that is the symptom of clogged emulsion tubes (aka main nozzle) – the small holes on the side of tube get clogged by tacky dried two stroke when the carbs stood empty for awhile. When servicing engines, we found this is the most common cause for a motor to bog down when hitting the loud lever.
Why is my boat running slow at full throttle?
Even if your boat is operational, riding with a spun blade places the propeller at risk for damage. Depending on the severity of the problem, it could leave your boat dead in the water unless the problem is fixed ASAP. Have you checked your propeller for debris?
Mercury 70 hp bogs down at full throttle. Discussion in ‘ Outboards ‘ started by willyyes, Mar 25, 2011 . Anyone have a problem wiht a merc that when you open to full throttle it runs fine for a few and then bogs down? I do. It will run fine at half throttle after that. It is snot over heating and it has a new water pump and new fuel filters.
Click to expand… Usually that is the symptom of clogged emulsion tubes (aka main nozzle) – the small holes on the side of tube get clogged by tacky dried two stroke when the carbs stood empty for awhile. When servicing engines, we found this is the most common cause for a motor to bog down when hitting the loud lever.
Why is my Outboard Marine motor bogging down?
If by chance you ran this motor without opening the vent screw on the gas can you could have ruptured the diaphragm on the fuel pump. I am not familiar with this particular engine but from the description of the problems you are having this sounds like a fuel pump problem.
Why does my outboard engine sputter at full throttle?
by Dan Harkins If your outboard engine is sputtering at any speed, idle or full throttle, it could be the result of several common malfunctions. You may need to make a few timing adjustments or replace a spark plug, or you may need serious mechanical inquiry.