Re: Problems with 1975 Johnson 135hp not running
details....<br />Father in law said he "somewhat" charged the battery last Saturday, and we hit it with the charger for two hours immideately before taking it out Sunday.<br />We had no issues starting/trimming the motor at home with the 'muffs. Put it in the lake and no crank, clicking solenoid, but you could trim up and down. Finally got it started and it never sputtered but just lacked any guts, and would not rev beyond 4800 rpm.<br /><br />Changed plugs from "highly" fouled bent center electrode type to marine grade with flush electrode. I also ran some Seafoam through the engine by spraying it into the carb with a squirt bottle while idling with the 'muffs on. I also started hacking into the wiring... removing old fish finder wires, old radio wires, etc... I also taped up any exposed wires leading to the engine, at the battery, and under the dash. Cleaned up corrosion on the batt terminals. I completely replaced questionable wires in some cases.<br /><br />I notice it has a new starter(3-4 years old??).<br /><br />at different times during the week of working on the wires the issues with trim/tilt not working would pop up, but magically fix itself. Sometimes I would move/shift wires around to get this to happen, sometimes I would only remove the neg batt cable for a few seconds. Also, when the tilt/trim would stop working and it would not start, the horn would not work either. The horn is wireed directly to thre battery. After removing the neg batt cable for a few seconds, the horn would work until I tried to trim or start it. I guess I should meeasuer volts when this happens.. sounds like it might be discharging a lot of current at a short in the wires.<br /><br />Charged the battery for 2-3 hours last night. 12.7 volts before chanrge and it was pulling 13.8 volts while charging. I also kept the battery on a "maintenance" charger all week.<br /><br />Today, trim/tilt did not work unless the engine was running. I got nothing from the key start, but I could eaisly pull start it with 1 or 2 pulls when cold with some starting fluid. Idled the boat out through the no wake zone and slowly brought it up to speed. It ran great! Smooth power, trimed it up just until it cavitated and then backed off, and we were flying across the water. Brought the speed back down a couple of times and back up again. Before slowing down to turn I finally looked at the tack and saw it pegged at 6000rpm. Throttled down and made a 180 turn, throttled back up and the rpm never made it past about 4000 and ran gutless. Crused along this way back to dock for 5 minutes and it just died with no drama at all. Trim/tilt no work again, and no electric start. After mutiple failed attempts at pull start I remembered I never squeezed the fuel bulb and thought I might as well give it a squeeze, at it was tight. Finally pull start and made it about 20 seconds before sputter and die. This happened 2 more times before we made it to the dock.<br /><br />So even with what I believe to be a hot battery, I still get clicking from the solenoid when using tilt/trim and differrent clicking the trying to start.<br /><br />I can jump across the solenid from positive to the center terminal to test start it right?<br /><br />How long is safe to run the engine at home with the "muffs on? Is there anything as too much water pressure when running the 'muffs?<br /><br />Since my father in law "cleaned" out the fuel tank, a clogged fuel filter might cause the loss of power and sputtering right? The fuel filter is under the cover right?<br /><br />Since it is a 75, it probably has a generator rather than an alternaor, right? I can't seem to find anything that looks like either alternator/generator.<br /><br />Thanks again for the help.
