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Wow. It's been a long time since I have removed mine. You need to remove, or at least loosen and peel back the upper cowling. I think there are three ~8 mm flange bolts that hold it in place. As you start this process, take pictures and detailed notes - there are several fuel lines that go into the VST and two water lines. You need to make sure you reconnect them correctly. And, you should replace the gasket on the cover.
Exploded view attached...
View attachment 20658
Hi
thanks for your feedback
I have already have my lower cowling removed
do you remember if you needed to take out the intake manifold as well
from what I see the VST is behind the manifold