Nissan 70C Problems

[jmcst8fan]

Hello,

Took boat out after couple of months sitting. Motor started just like it always does but it seemed like it was running half-speed. Had neutral warm up switch all the way up and motor was running only 2500 (usually ~5000). Then when I let off of the switch to idle motor dies. Thought it was fuel filter, checked that out everything was fine. Anybody got any ideas?

 

[TOHATSU GURU]

Re: Nissan 70C Problems

It could be anything...You need to determine what system on the engine is causing the problem.

 

[jmcst8fan]

Re: Nissan 70C Problems

Well I got a chance to look at it yesterday and it appears I've got water in my fuel system. Opened up the air cover and water poured out of the bottom carb. I purchased the boat last year used and it still has the same tank that was in the boat at the time. Hope I haven't screwed anything up too much. I'm assuming I should start with that as it will not start right now. Take carbs out, clean, replace fuel tank, lines, etc. Spark plugs looked a little oily to me. Is that normal? I belive it is a 98-99 model. Thanks in advance guys.

 

[TOHATSU GURU]

Re: Nissan 70C Problems

That's the ticket.

 

[rogerwa]

Re: Nissan 70C Problems

I wouldn't rev to 5000RPM without a load. That would bad for the motor as well.

 

[jmcst8fan]

Re: Nissan 70C Problems

I wouldn't rev to 5000RPM without a load. That would bad for the motor as well.

Yeah I don't think I've ever got it up that high, was just saying that under normal conditions it would def. get that high if I hit the switch all the way up. I'll keep you posted with my progress. It's been pretty slow going with working and moving into a new house though. Thanks for all the input and great site.