Re: I hate 4 Strokes

[joesnuffy]

I’ve got a clear fuel line on my test tank and can see the fuel getting drawn or not getting drawn. On a small engine like yours less fuel would need to be drawn on a 150hp it would need much more. I normally just pump the fuel bulb a bit to see if carb is staying full of fuel if I think fuel pump might be an issue or just disconnect the out fuel line of fuel pump and crank engine over a few pulls to see if fuel comes out. I would say you have an ignition problem since you have gone through the fuel system and I assume you have good compression on both cylinders. I would at least check your flywheel key even though its a four stroke it can run with a sheered key or partially sheered key etc. I put my engine on TDC and put a pencil in the spark plug hole and the #1 piston was close to the bottom of its stroke not the top of stroke but I had to pull the flywheel to actually look. But it was a great feeling knowing that it was most likely my issue. That engine could have had a sheered key many years and it would run but just not like it should and the flywheel may have shifted again and that could be your issue. I hope this helps but on my Yamaha golf cart and another buddies Yamaha 4 stroke it turned out to be ignition problem not a carb probelm when I was getting them to run correctly.

Hope that helps,
Joe

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