Have a 2000 Baja 342 Boss
twin Mercury 7.4 Mag MPI
At all speeds, the boat runs fantastic
When I shut the boat down or any length of time, the starboard motor will not start ?
It may start an hour later it may start a day later
I already changed the cap, rotor and distributor ignition module.
I have a new distributor pick up sensor, but I’m avoiding putting that in because I would have to pull the distributor
At this point, I’m not sure if it’s ignition or fuel at this point
Kind of thinking a vapor lock issue but just not sure
any assistance would be greatly appreciated

VST cool fuel system causing vapor lock possibly.

that pump should be right between the two engines the hottest part of the bilge, vent by raising the hatch while at rest and see if that helps

are you talking starts, stumbles and dies? Thats vapor lock. Cranks but wont even trry to fire? I would think more toward ignition .