crank won't start

[sea trout]

79 evinrudge 140hp. I have spark, changed plugs still won't turn over. today I put old plugs back in. it started then I turned engine off and tried to re-start and I was back to same thing crank but won't start. three and four plugs were wet.

 

[rickdb1boat]

Re: crank won't start

Sounds like it's time to rebuild the Carbs! Something in the Carb is stopping fuel from getting to #1 & #2. Could be float needle is sticking! Try rapping on the float bowl with a screwdriver handle next time you try to start it. If it starts and runs good, it's time to rebuild the Carbs! You can get rebuild kit's from your Dealer.

 

[rickdb1boat]

Re: crank won't start

I guess I should have asked, Did it run good before? Has it been sitting for long? Compression Checked? More info please!

 

[sea trout]

Re: crank won't start

I bought boat motor & trailer about a month ago .the owner said he had it in the water two weeks before ,engine was rebuilt and starter was being rebuilt. I picked up starter and put it in, first thing found was ignition fuse blown. I replaced fuse, also replaced solenoid, checked spark which I have. did not do compression check. even drained fuel & put new feul in.the other day I got it running for about a minute it was running to fast turned it off then back were I started. crank but won't start.

 

[mellowyellow]

Re: crank won't start

sometimes a discharged battery can cause this.<br />enough juice to crank, but not enough to start.<br />try jumping it from car battery. if it starts<br />right up, it's the battery.<br />even brand new batteries can be under-charged<br />off the shelf.