Nissan D50 (carb) wont even try to fire

[coolchange]

This engine ran flawlessly all summer (after sitting for 4 years)...I got a tune up which included a new carb. at the beginning of the season.

Decided today was a good day to fog and put it up till Spring, after pulling out of the water at the end of OCT. (sitting in the yard never run since then till today)

Would not start...or even pretend to even with the evil starting fluid...changed the plugs (.035 gap seemed like what I took out).

My guess: the gas turned to crap in the 2.5 months and I need to rebuild. What else should I be checking?

Also, I was running non-ethanol gas (supposedly) but usually did not.

any thoughts would be appreciated.

[2859er]

Seem like even if the carb jets were totally clogged up it should fire with the starting fluid if you were getting a good hot spark. Did you check to see if you are getting a good spark?

[heymagic]

You could take the carb off and it would still start with a good shot of starting fluid or many brands of carb cleaner. Sounds more like a spark issue to me also.

[SomeSailor]

When trying to sea trial our 2859 last week, the kicker motor wouldn't start... wouldn't even think about it. Smelled flooded so I figured no spark or bad spark. Bought two new plugs, went to install and absolutely no fire on the wires. Got a schematic and tracked it back to an ignition cut-out connection (where kill switch, low oil and non-neutral kill meet) that must have been intermittently connected. I reset those and she started right up. I'd check for spark (easier than chasing fuel) and start there. Pull a plug, keep it grounded and see what the spark looks like?

[Papa Charlie]

I agree with every one here. Problems with gas engines are generally electrical related and not fuel.
1) You need to trace back from the spark plugs and see if you have a spark. I would think that if you do not have spark at the plugs, which is easy to check then it is either the distributor or the coil.
2) Make sure that all your wires are connected.
3) Moisture in the distributor cap is a common problem. Make sure there is no condensation there.
4) If everything is ok there, I would check the coil out.

[coolchange]

:o uh oh!...I am going to bet the kill switch was not properly set ...making you guys way smart. I had left the key and the lanyard (pretty near the deck on this boat) to the kill probably got stepped on and disconnected during cleanup activities...makes is a little embarrassing but better that than a lot of expense and hassle. Here is hoping.

Thanks for the input, I'll keep you posted. and pick up my dumass award in Friday Harbor.

[Go Aweigh2452]

Don't beat yourself up... everyone... well most everyone, has a kill switch story to tell... ;)

[Fred P]

Some how low oil and kill switches are the last thing to check rather than the first. I will not go into how I know that.

Fred P...............

[2859er]

Don't beat yourself up... everyone... well most everyone, has a kill switch story to tell... ;)

And I thought I was the only one...........:oops: