no year, 2stroke? 4 stroke? VRO?... my guess would be either incorrect gap or bad fuel mix if its a 2 stroke. could also be water in the cyl.
without more info, thats all i got.
Overheating or head bolts not properly torqued down when assembled.
time to get a watch! :)
most likely a clog in the line or wheel cylinder or maybe a broke spring
The symptoms you are describing could be caused by a leaky cylinder head gasket.
replace your starter assembly
My 115 EFI mercury outboard would only generate 4200 RPM. The power gradually reduced and finally levelled off at 2400 RPM. I have had other problems in the past relating to power settings. Fuel injectors and impellor have been eliminated as potential causes.
Have you checked the coil's ?
Mercury.
cylinder stop drag
No gas?
carburetor or spark plugs
mercury, mercury is the 80 th element on the periodic table.
Mercury causes major neurological problems.
The Sun attracts Mercury; that is an unbalanced force, that causes Mercury to accelerate towards the Sun.
No spark.
You would slowly die from the brain damage mercury causes.
It is caused by solar radiation.