Yamaha 150 fuel

[Twin 150's]

I just finished replacing my racor fuel filters & cleaned the secondary filter on the motor, Next trip out was going all fine full Rpm range then it shut down to 4800 rpm that was it. Could this be blocked high speed jet in the carby. Motor idles nicely,compression all good.

[boats.net]

Could be fuel restriction in fuel hoses, filters, antisiphon valve at tank, plugged carbs or fuel pumps.

[Twin 150's]

Cheers that a starting point.