Replacement fuel tanks fuel starvation issues
 

This is probably going to sound like a stupid question-but anyway here goes. I replaced original fuel tank with a Spectra. With the original fuel tank I never had a fuel starvation issue under hard acceleration at high rpm's no matter what fuel level the tank was at. Now I do. All the rubber is new and even went to a RobbMc pump. The only way to avoid it now is to keep tank near full. Would it be possible to add a hose to the fuel pickup inside the tank so that it is drawing from the rear of tank? It is done this way on my inboard boat-rubber hose to bottom of tank . What do you all think? Thanks,Paul:

did you put in a new sender ?
the sock on the new oreillys stainless was junk
I could hardly blow thru it ,,,,
it also had a harsh factory bend in the tube that looked very restrictive
bought a stainless from napa and all is well/better much more mandrel bend to it and I used that sock

I would believe its the pickup screen or tube,,

No Scott, I did not put in a new sender. The original looked good,however it seems as though I will be dropping tank again so will look more closely. I did replace the original sock with the O Reilly sock. Did you find a more compatible sock? I had a hard time finding the 3/8 sock. Thanks , Paul

fuel starvation
 

Going to drop tank again this weekend and remove the Autotechnic O'reilly sock. Read on a Corvette side that some 70's were having the sock sucked into the pickup tube. A GM service bulletin was even issued on this. Ordered a RobbMc 100 micron prefilter to replace sock. Hope this is it-there are only so many variables. Let's see. Paul

gas cap ?? mud wasp in your vent tube ??

probably not since you didnt tinker with them ,,

Maybe you have heard this one b4.... "spent a ton of $$$$ on a boat motor once " twice... 3 times ..

yamaha 90 4 stroke bought it new ,,,, ran SWEET first summer ,,,,
the next year ... issues with rpm dropping off after a few minutes up on a plane ....
ran better on 1/2 tank of fuel wierd,,
new fuel lines,,, filters ,,, ignition ,,, warantee issues ....
then I was washing it and saw a mud wasp come out of the vent for the fuel tank ,,,,

yup ... plugged up the vent exit ,,,

fuel starvation issue resolved
 

Scott, Dropped tank again. Removed the O'Reilly sock I replaced the original 51 year old sock with and then installed a RobbMc prefilter. All the rpm's I need is back. When I tried to blow thru the new sock there was a lot of resistance. It was not like that when I installed it. I think the ethanol in our fuels is causing the mesh to clam up. Anyway beware of Autotechnic replacement socks