Fact----The general public thinks that a 2 stroke is an inferior motor.----Some of the newest parts motors I own are 4 strokes.-----Modern motors with computers and sensors and all the wiring are expensive to repair.---Often they re simply replaced.
Check flywheel key.----No you need to advance " throttle only lever " to open throttle plates slightly for cold start.---And at idle the throttle plates are to be closed with air going through calibrated holes.
Just install a new diaphragm in each pump.-----About the only thing that can go wrong.----Pumps are driven by crankcase pressure pulses.-----There may be issues there.----Post the CYLINDER compression test results here.-----That may offer a clue.
To me it sounds awful.----Sounds like it is running on one cylinder.-----Post compression numbers.----And does spark jump a gap of 1/4" (7 mm ) or more on each lead ?----Check fuel pump diaphragm.
Way, way back when , a boat shop that I frequented had some u-shaped brackets in a box.-----Gave them away with each motor that was sold or came in for repairs.------Just fit it into the holes for the tilt pin.----Swing it up and lock the motor on.
Sorry----You have to be very clear in the description of your parts.-- Exhaust covers or intake covers are totally different.-----I am not there to see what you are doing.----I could overhaul that motor without a glance at a repair manual.
Just be patient .----A buyer for your 115 HP ( if in fact like new ) will come along.-----There are some wise boat owners who will recognize value in that motor.
