Nissan ns18C probs

Messier

Recruit
Joined
Jul 1, 2008
Messages
1
Greeting from sunny summer Finland!:)
Hello I am new with motor boats. I got my boat with Nissan ns 18C outboard motor in last winter and I have 2-3 hours driving behind.

Problem is that when I drive with full throttle engine loose power and then stops.:confused: Sometimes I can drive 15 seconds and sometimes couple of minutes. so only similarity is missing power.
With half throttle or slow motion it works OK. Every time after power loose engine starts normally.
My feeling is that it cant got enough fuel, but ???
ps I have change spark plugs.
 

triumphrick

Lieutenant Commander
Joined
Jun 26, 2008
Messages
1,737
Re: Nissan ns18C probs

Never heard of those puhdas carburetors, really wanted to avoid a problem with one, so looked em up. Must be made in Sweden. :p
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: Nissan ns18C probs

Maybe carburetor, but I think a restricted fuel supply not supplying fuel as fast as it is burned at WOT.

Suspects include: restricted tank vent, restricted pickup in tank, air leaks at fuel line connectors, pinched or twisted fuel line, weak fuel pump.

Good luck, Messier, and welcome to iboats. :)
 
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