Brian,
This is how the CSV looks like installed on the motor. With your engine installed access is quite a challenge specially if you have big forearms.
To get better access reaching the CSV you could do one of the following:
a). Remove the CIS boot “Pope”.
b). Do a partial drop. Or
c). Drop the motor. I don’t recommend this at this point.
Use a 4-mm Allen wrench to remove the 2 Allen bolts securing the CSV. The hollow banjo bolt for the fuel line requires a 12-mm socket or box wrench. Loosen the fuel line first before loosening the CSV and place some absorbent materials or rags to collect the gasoline that might drip during the process. Make sure you don’t lose the o-ring for the CSV.
Since you don’t have a fuel line extension you could improvise for the CSV flow test. I will update this post with the CSV installed backward for your test. For the meantime, I like to know if you could follow the procedure. We will go to the detail later.
Tony