1970 Evenrude 115 Idles great but jerks and shakes at half to full throttle

Rusted Rutter

Recruit
Joined
Jul 6, 2014
Messages
4
Hello I am new to this forum and i have read till my eyes hurt. I have read lots of problem but none like what I am experiencing.
:yield:

I have a 1970 evinrude 115 115083D that will run and engage in gear just fine. I took it out on the water this summer and noticed I could get it to go to full throttle. I backed it off to about half .... ran smooth and no sign of trouble other then no full throttle... Then out of no where BOOM the shaking and jumping came back... backed it down to an idle and ran fine till I got it out of the water and back to the dock, I even stopped and pulled another boat who was having trouble behind me.... Does anyone know what this problem is I'm having. It wouldn't die but would stay running but would shake the whole boat. :eek:
 

Bosunsmate

Admiral
Joined
Apr 7, 2012
Messages
6,135
id drain the gear oil and look for metal shavings.
some gears, clutch dog might be stripped
 
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