Thread: Motor want start?

One other thing you should check is the inside of the fuel line itself, the older fuel lines cannot take ethanol and will degrade the inside causing it to flake and plug the line or fuel filter.

If you have a timming lite,use that to check and see if coils are working,I use mine to check my outboard if im checking for spark,use your volt meter on restance scale to check your plugs,on lowest scale if you get a reading most of the time there good.If it is a resistor type plug you will have a higher reading, you can check your coils with a battery to check for spark, lift ground wire to coil and connect neg side of battery to frame of coil,now tap gnd wire of coil to positive side of battery with plug out and grounded to frame of coil,you can use a 9 volt battery sometimes, if good, it will spark....if all is good go to carbs...

Originally Posted by SeaRay

I have used starter fluid when I couldn't get mine to fire and engine lived to tell about it. I didn't know at the time you could damage your engine. Still doubt the quick little shot I gave mine would cause any issues. If yours is a Yamaha and has the "Prime Start' (no choke) feature I can tell you how I fixed mine, sorta.

Please tell me how you sorta fixed it. I've got a 2003 Yamaha 90 and it's almost impossible to get it started after it's been sitting over 2 or 3 weeks. Once it cranks the first time it's fine. I've got where now I take the hood off when I get to the ramp, and get it started using the emergency start before I launch.

Im thinking that if you have an external fuel tank, check and see if you dont need to loosen you fuel cap some so that the fuel pump does not have to suck against the vacuum in that tank, I know on my 5.5 hp outboard with an external tank it will not suck fuel from the tank if the fuel cap is not loosened off,more than once has this happened to me when i was on the lake, motor dies and many frusterating things I try.then I find out all that it was,was a fuel cap on to tight and vacuum was causing fuel not getting to carbs...Am I the only one that does this.........jerry

Also pump that fuel primer bulb up till its good and tight thin you know theres fuel in those carbs. if you cant pump it till it gets tight, then you hav a fuel leak some where, between the tank to the carbs, and even inside the carbs.....