Evinrude 150 won't start

[DavidcFlorida]

hi first time to this site, i hope someone can help me. First boat iv'e owned, evinrude 150, model e150trlcsr is on the tag and e150trlcsa is on th engine, i bought the boat after it was sitting for 2 years, took the boat home changed the plugs and it was very hard to start. It felt like it was real tight. i've worked on many cars and it felt like timming was off cranked real slow and tight. finally got it running and took it out for the day. ran very well for the day started back tward home and it died on me. i looked thing over and found a dry rotted fuel line sucking air. cut and fixed it got it running again. started home it died again. had to get towed in, took boat apart and and completely rewired the entire boat and engine. no wire was left (not getting towed in again)lol. after redoing entire boat over put engine back on and tryed ti start it. 2 brand new batteried with a isolater switch, engine still turning over very tight. did compression check, got between 95 - 100 on all 6 cylnders. replaced starter with brand new one (not rebuilt) replaced 3 coils that seemed coroded and all wires. checked spark and good spark. everytime i crank it over it just seems too tight to crank, it does crank but starter heats up quick so i can't keep cranking it. batteries are at full charge (2 marine batteries)but it turns over like there is not enough juice, i have tried everything i can think of. PLEASE HELP>............ i have also cranked the engine over with all spark plugs out and it turns over great and cranks normal, but when i put them in it just seems to me that the engine is real tight, also i have pumped the bulb and tryed everything as fuel goes, ie...spray starting fluid in and it just seems to tight to get a good cranking speed to start. it has tried to start but won't. I currantly took carbs off and i'm rebuilding them, can fuel problems make the engine tight while cranking? what can i do to make it crank normal? THANKS IN ADVANCE IF YOU CAN HELP ME......david

 

[DJ]

Re: Evinrude 150 won't start

When you say tight, I assume you mean it cranks slow?<br /><br />If so, remove the nagative battery cable from the engine block, clean the cable eye and the bolt.

 

[DavidcFlorida]

Re: Evinrude 150 won't start

yes it cranks slow

 

[DavidcFlorida]

Re: Evinrude 150 won't start

did that, have cleaned, ground down all connections and still slow

 

[DavidcFlorida]

Re: Evinrude 150 won't start

guess no one can answer this one.....

 

[rickdb1boat]

Re: Evinrude 150 won't start

If you can get it running, I would try a decarb to free up any stuck rings and see if that helps. Also, try shooting a little oil into the spark plug holes and see how it turns over. The carb rebuild is a good idea, but is not related to your problem, unless you are flooding a cylinder real bad with gas. Let us know how it goes after the rebuild... BTW- You are using the correct oil/fuel mix??

 

[DavidcFlorida]

Re: Evinrude 150 won't start

yes i have done it all, and it still turns over slow, retested the starter, under load and it works fine. rebuilt carbs, even with carbs off it still turns over slow

 

[phoenix427]

Re: Evinrude 150 won't start

try the engine earth. same happened on my dads porsche and we are just talking engines here!<br /><br />he burned the starter motor out cos there was too much resistance...replaced the starter, still only just turning over, like you said sounds like a dead battery. replace the earth strap and you might find it whizzes over no problem

 

[rickdb1boat]

Re: Evinrude 150 won't start

Just for grins, jump it from your car battery and see what happens...

 

[stairliftoheaven]

Re: Evinrude 150 won't start

u sure timing is not too far advanced?

 

[DavidcFlorida]

Re: Evinrude 150 won't start

i tried all that...........still doesnt work, still turns over slow, replaced all wires with brand new ones, and ground down all connection pionts with grinder. jumped the starter direct with cables to car and still turned slow

 

[Mike Langianese]

Re: Evinrude 150 won't start

David,<br /><br />I know that you said that you replaced all wires; do you mean the entire wiring harness or the battery wires? I had the exact same problem, replaced the starter, solenoid etc. cleaned up all terminals...<br />No help, disconnected all of the wires and was checking the resistance on each, all checked OK then re-tested, the ground wire on the bottom of the solenoid looked perfect but was corroded for about 3 inches under the insulation. Cut off the bad section and problem fixed.

 

[DavidcFlorida]

Re: Evinrude 150 won't start

i replaced every single wire on the boat, and engine. New wires, connectors, everything. No wire was left, that might be corroded. New batteries, also jumped it with my car and it still made no difference on how it turned over.