I have been chasing a low power and stalling issues for 2 seasons now. I think it may be related to the anti siphon check valve. The boat starts runs great for awhile and slowly loses power until it stalls out. I have to wait a couple of minutes and it starts and runs again. I won't list all the issues checked but everything I have researched points to the anti siphon check valve/pickup tube. My question: Is there access above the fuel pickup line of the fuel tank or do I have to cut the floor?