Hot Engine Will Not Start

[Eclipse1701d]

Hey guys. Have a problem with my starboard engine. It will start and drive fine, no beeps or lights. However, if I try to start it within an hour of my last drive, it will turn over and turn over, but not start. When it cools down, it starts right up. I changed the plugs and inspected the coils. I also noted that if I drop it below 5000rpm's, it sounds like it is not getting enough fuel, sound changes, hard to explain, but if I crank it back up to 5000 or more, it is fine... Any ideas?

 

[Coastiejoe]

Are you running the blower motor for 4 minutes or more before you try to start it?

 

[Eclipse1701d]

Yes. Port starts right up, starboard just turns and turns...

 

[JPass]

Check for spark when she won't start. I've seen where some coils will no longer work when they heat up. Pull the plugs as well when she won't start, check to see if they are wet with fuel.

 

[Eclipse1701d]

Thanks for the advice. I guess I can switch the coils between engines and see what happens...

 

[ID62]

I had some equal issues with my Utopia, see my findings....

http://www.seadooforum.com/showthread.php?78731-Utopia-205-2x155hp-Rotax-engine-is-hard-to-start

 

[enut]

Hi Eclipse
Have you had any luck troubleshooting your hot start issue?
I don't mean to hijack this thread, but do you get the 1 long beep at startup?
It seems that this happens quite a bit with the similar year twin engine boats.

 

[Eclipse1701d]

I have had the long beep at startup, since I bought the boat. No codes show, when brought to shop. When this started, I was getting a short beep, after it ran for about a minute. After I cleaned all contacts, the short beep went away, but unfortunately, it did not fix the hot start problem, or the long beep on startup... I plan on bringing it in this week. I will let you know what happens...

 

[Eclipse1701d]

So, I finally gave up and brought the boat in to the shop. My mechanic hooked her up to the computer, on the spot, and it is reporting Crank Position Sensor error. Hopefully, there are no other problems. I will let you guys know what happens...

 

[pete63]

thats why some of us have invested in a candoo, not so much guessing now.

 

[Eclipse1701d]

I cannot argue with that!

 

[enut]

Guys just an FYI, check these out:
I found some videos that show the long beep on startup. I found another video that I did not post the link where a 200 speedster did the same thing.

This is the best one that illustrates the beep.
https://www.youtube.com/watch?v=8zBANGQCT8Q

At 50 seconds, the below video beeps as well.
https://www.youtube.com/watch?v=uguZDFs9Yrk


At 52 seconds:
https://www.youtube.com/watch?v=OaBSqmA-4Xc

 

[ORION '95 Speedster]

When a gas engine wont start, I usually start with checking for spark. If it has spark, I clear the crank and cylinders of fuel. I open the throttle all the way and crank it over for 5 seconds and then another 5 seconds. I will replace the spark plug and see if it starts. If not, I will spray starting fluid into the intake and crank it. If that doesn't work, I open the throttle, and add more starting fluid. Crank it over with the throttle wide open. If that doesn't work, I check the compression. If compression is good, I will repeat the previous steps one more time. By now the engine should be running. If its not running, you have eliminated spark, fuel/air ratio, and compression. Only thing left would be the ignition timing or poor fuel quality.

 

[enut]

Hi Eclipse, I saw in your other thread that is was the crank position sensor.
Did you find out anything from your dealer about the long beep on startup?