a lot of factors in play here...is the gas ethanol?..are you positive it was treated?..do you have a water filter installed?..was the 100 gal tank full of old gas or did it have a partial tank?...
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replied to your private message

http://www.wholesalemarine.com/johnson-evinrude-premium-blend-gear-case-lube.html?gclid=CJbvpMrym84CFQotaQodjYIG6A

Why not use recommended supplies and oil and plugs etc recommended by the engines manufacturer?...an outboard engine is a high rpm piece of equipment that's easily damaged and playing around with...

13797if its a 12volt motor you will need a minimum of a 100 aph battery to run 4 hours at medium speed with no current or...

let us know please

ok..we are back to square one...please take the voltage readings again...

I miss read ....I thought you were running a 4kw..it doe not matter on the basic question in rpm when running...

the other two things are regulator and flashing the windings....the web is full of...

have you checked spark with a spark gap tester?spark should jump 7/16 inch with a good pop..i would also put an inductive timing light on each plug wire to double check its running on all 4 at...

lotta looks but no answers...a question....is the bulb pumped hard before start?..what is your start procedure?..i ran a 88 from 1994 to 2011...

thanks mike..i am going to have to stop my entries before coffee kicks in..over looked brand of motor..

if ''key on'' was key turned to start then I would suspect either a high resistance from the battery positive post to the starter.a defective solenoid (if it was picked), or an open starter...it...

the tach works off the regulator..what does the voltmeter read when running?...

I had a 1973 identical kohler on a boat I purchased in 1973...the only problem I had with it was flaky auto charge for the battery..rewired it to where it charged max when ever it was running which...

we all have done it..over the years I have developed a launch routine...first of all I want no help or talking or distraction of any kind..i,and I alone will, prepare the boat for launch...I store...

it don't have anything to do with the current problem but it looks like in the pics that the motor is setting too low on the boat..almost as if you have a long shaft engine on a short shaft boat..

reread and think you may be right...if so my bad...

warmer water and warmer air?

new aluminum eye plate backed up by an aluminum plate inside the hull...I have gone this route twice on two different boats..the reason for the aluminum eye plate is you are then welding aluminum to...

http://www.saltawayproducts.com/OutboardFlushingPage.htm

you may try this...