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Slabmaster II
New 115 mercury fourstroke
Engine bogs down when you use the power trim
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Slabmaster II
If you use the power trim to raise or lower the engine while the engine is running you can hear if pull the engine down. You can also see in the rpms.Originally Posted by dfar
Slabmaster II
I have the Merc 150 four stroke and at idle it does the same thing. Just figured that is the way it is. Makes you wonder what causes it. Does not do it when you throttle up.
drc LIKED above post
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#1 check fuel line close to motor, see if by some chance it is getting bent when you trim up. Might restrict fuel flow.
#2 need to get a volt meter and check battery voltage at idle and then trim up and see if you have a significant voltage drop. These new motors like all new electronics require a lot of stable voltage to operate. If voltage is dropping it could cause your electric high pressure pump to slow down ending with a slight fuel starvation. If it does might have to replace with larger battery.
