Hi, my intake manifold is cracked. Revs dancing all over the place. I have a donor bike that I will take from. My question is Do I simply undo two torx bolts, hose clamp on carburetor and lever the intake hose off? Also fuel line in the way? I undid the bolts and the pipe looks is a bit tight. I wanted advice before I do anything wrong. It was dark and I was using a torch. Is it easy or is there a clip? Very tricky angles. Is this advisable or is the used one no good? Any advice please? Sorry I should get a new one but I'm being quick and cheap at the moment.