Yamaha 130 problems, Bad Stator?

[Whaler17]

My motor started out cranking and running fine last summer, but it would only run on plane for about 100yds, then the engine would suddenly stop cold. When I tried to start it yesterday, it would start with the choke on, but would only run for a second then quit. If I throttle up in nuetral and turn the key, it will start and run at about 2k rpms. If I throttle back doen it stops. I cleaned the carbs at least three times at the end of the summer trying to get it to run right, and now I am thinking it might be electrical. Am I on the right track? If so, would it most likely be the stator, or something else?
Any advice would be appreciated.

Thanks
Hank

 

[mpsyamaha]

Re: Yamaha 130 problems, Bad Stator?

its really hard to say what the problem is at this point.... its possible it could be a fuel related problem even if the carbs are perfect.

its pretty easy to test all of the electrical systems with a multimeter(with DVA) and a repair manual.

 

[Ray Neudecker]

Re: Yamaha 130 problems, Bad Stator?

Back to the basics. Check compression and fire. A timing light or spark tester for fire. Then it is time to go through the fuel system if the other two check OK.

 

[Whaler17]

Re: Yamaha 130 problems, Bad Stator?

I forgot to mention that I also replaced the fuel pump, all the gas lines, and even tried to run the engine off a small 6gal tank to make sure it wasn't a problem in my built in tank. None of this made much of a difference. I am getting spark, because when I throttle up in nuetral, the motor runs. I read somewhere that Yamaha used to put these small metal strainer things in the fuel line right where the fuel line meets the carb body, but none of the manuals show the strainer and there is no part number for it. I have heard that these clog up with varnish and whatnot over the years and can cause fuel starvation. My biggest concern with trying to find the strainers and clean them is that the fuel line is VERY hard to remove where it meets the carb body. I am afraid that once I remove it, I may have a hard time getting it back on. Is this worth looking into?

My motors is a 1989 130.

Thanks for the advice so far.

 

[Ray Neudecker]

Re: Yamaha 130 problems, Bad Stator?

There is no strainer in the line to the carbs except the one mounted on the side of the engine. Bypass it, install a water seperator filter in the boat and do away with the quick disconnect at the engine.