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inspect top edge closely most seem to crack there

:thumb up2:

^^^^ +1

:thumb up2:

fuel ;pumps will be a buzzing sound port side of engine

^^^^+1

fuel psi at idle please ????

^^^^^+1 eliminate boat as source of problem use a separate fuel supply and new OEM fuel line no afterjunk

inspect reed /are they the original carbon fiber????

try connecting orange wires together and activate trim

new check valve doesn't mean good check valve / have seen some new bad ones

most i see are 170*

89984T5 / has no top housing

agree

very low batt voltages

shouldn't be a problem replacing would check for broken wire first

does it have a limit switch installed in trim system under cowling , possible problem

fuse link tested ??? all fuses checked on engine ???? need to replace wing nuts with stainless nuts and lock washers

i hate um , seen several powerheads lost from h2o in oil tank , be warned

low compression , broken reed valve

so your saying the the trim motor stops working at trim limit sounds like broken wire

batt supplies voltage, alt charges batt , engine must have batt voltage supplied and to run , do not disconnect engine from batt when running

shifter switch nothing wrong on engine if it works fine at cowl switch

outboard cable adjustment

2-4 lbs idling