Suzuki 60hp,only firing on one cylinder.

[seam1]

I have swapped the plugs and the bottom plug works fine on the top,I also swapped the coils and this to is okay,The spark is also fine,starts no problem on the top cylinder but wont on the bottom,Thinking it could be fuel starvation on the bottom cylinder because sparks ,coils and leads appear to be fine.this is my first boat and I have it 4 weeks,could this be something serious?

 

[JB]

Re: Suzuki 60hp,only firing on one cylinder.

Hi, Seam.<br /><br />If you have two carbs, spray some fuel mix into the lower carb and see if the lower cylinder starts making power (rpm jumps). If so, overhaul that carb.<br /><br />If you have only one carb, check compression and visually inspect the reed valves for the lower cyl.<br /><br />Good luck.