2005, 115 optimax 4 stroke, will not start.

[Roy Irvine]

After exhausting my ability to analyze the no start problem, the dealer found a small screen between the low & high pressure pumps that was plugged, once cleaned, the engine ran well.
I did not know there were 2 filters in that fuel unit.

 

[quicktach]

You may want to consider a prefilter between the fuel tank and the engine...one that can easily be replaced or cleaned.

 

[Silvertip]

Just so you know -- you either have an Optimax or a 4_stroke. You do not have both. Optimax is a two-stroke. 4-stroke is ---- well, a 4-stroke. Very different engines.