Idea came up in another thread - tools you have modified or even fabricated yourself, that may be useful to others.   Here's two of mine:   Angled spanners. I have Malcolm Jones's 'overhead' Pi throttle linkage, that has droplinks down to the butterfly spindles, between the throttle bodies. They need to be adjusted for length, and have small spherical bearing at each end, with opposite threads, so the link bar can be turned to do that. But the lock nut at the bottom is inaccessible with