Johnson 100HP 100ESL71A just died

Hi all,<br />Great day for boating. After 5 or so hours of on/off running today, at 30MPH the engine died. Checked the engine and the starter would not engage. Hit starter with a hammer and it started to engage again, but the engine seems like it is backfiring. Should I replace the starter anyway?<br />Is the engine flooded?<br />Engine never did start again, got towed back!

Re: Johnson 100HP 100ESL71A just died

frankk,<br /><br />Don't condemn your engine or starter, just yet.<br /><br />Lubricate the starter bendix shaft with some WD-40. Walk the pinion gear up and down, by hand, and keep spraying the WD-40.<br /><br />Also remove both ends of the battery cables. (yes, that means the engine end of the cables too). Make sure they are clean and tight.

Re: Johnson 100HP 100ESL71A just died

OUCH!!!! Frank...hammers is a no no on starters. Good way to break the magnets inside. Then ya' really troubles.<br /><br />Lets start from scratch....The starter didn't engage...do you mean the starter wouldn't turn over or the bendix wouldn't jump up into the flywheel? <br /><br />If the bendix won't jump, put a few drops of WD-40 on the bendix shaft and roll it around a bit. Usually gets them jumping.<br /><br />If the starter won't turn, check electrical connections first. Listen for the click of the solenoid. If starter still won't turn, jump the large post on the starter solenoid. This makes a direct link to the battery. If starter still won't turn, starter needs an over haul.<br /><br />When was the engine last given a good going over? Like compression, ignition checked out, and carbs rebuilt.

Re: Johnson 100HP 100ESL71A just died

Thanks guys, lots of great data.<br />Cant wait till tomorrow to chexk it out.<br />I will advise. Frank

Re: Johnson 100HP 100ESL71A just died

The starter didn't cause the engine to die. <br /><br />How about spark? <br /><br />any gas?

Re: Johnson 100HP 100ESL71A just died

Finally got a chance to check the motor out.<br />Used WD-40 on the shaft of the starter, now slides up and down easily...<br />I used the bulb to prime the engine, started after 10 seconds of cranking, MODULE SEEMS GOOD!<br />Engine died after 10 to 20 seconds of running.<br />Decided to check the filter on the engine, it has a little crud in it. Running (don't tell wife) to boat shop tomorrow, and pick up rebuild kit, new bulb and a few hoses.<br />Now to figure out how to drain the tank. It has only about 5 gallons left in it.<br />Perhaps just the tank has bad gas. Any other precautions on draining the tank?<br />Frank

Re: Johnson 100HP 100ESL71A just died

It was the rotor!<br />Boat back working again!<br />Thanks all.