05 Scic Sportster Running Rough

[05SPORTSTERSCIC]

Hello,

I am a newbie here on the site. I bought an 05 scic sportster at the beginning of the season. I took it out when I bought it & ran it for about 4hrs. The boat was perfect!!!!!!!!!!!!!!!!!!!!!!!!!!!

Today the second time in the water, boat started right up & i started out of the launch ramp. I noticed the engine was running very rough. It was sputtering. I shut it down & check in the engine compartment for anything obvious. Then It would not restart. I loaded it back on the trailer. After I got it loaded I tried the engine & it started right up but it runs very rough. Two plugs were a little wet & all cylinders have spark. I am going to do a comp. test!!!!!!

Any Ideas????????

 

[05SPORTSTERSCIC]

compression is ok

I did a compression test. 128psi in all cylinders!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Before the test I started the engine & disconnected the coils 1 at a time. The 1st cylinder had no change.

I am going to replace the plugs.

I have turned the battery on several times to listen to the radio. Could I have fauled the plugs doing this?????

 

[05SPORTSTERSCIC]

I installed new plugs today & it runs good on the trailor.

Guess I need to pull the s/c before I really cry!!!!!!!

 

[JoeZ]

Ok, this is the second time you've ran the boat since you bought it? Did you buy it new? Just trying to figure this out before I go on to possible issues.

 

[05SPORTSTERSCIC]

This was the second time I ran the boat. Boat has only been in the water 2 times by the original owner. He estimated 6 hrs. I ran it for 2.5 hrs. The next time I went out the plugs were fouled. I think it was turning the battery switch on & off several times without starting the boat. If you turn on the battery switch you here the fuel pump & injectors engage.

After the new plugs it runs smooth again. I hope the problem is solved I will put it in the water this weekend.

 

[JoeZ]

Good luck to you and keep us posted. Some times plugs will foul after long periods of non-use when there is oil build up on them, which may have been your problem if the boat runs well after a change.

Be sure to follow up and let us know how it goes!

 

[hfgreg]

Good luck to you!

 

[JoeZ]

So did you have any luck?