I'm just about to try making my adjustment a bit leaner, as after replacing a lot of parts, i have noticed it's still running a bit rich - but am concerned about pushing the key in too far, which i understand is like falling into the abys.
How far DOWN do i have to push to SAFELY engage the...
Interesting little video clip on tyre tread depth on the autoexpress site. http://www.autoexpress.co.uk/ Evidently 3mm is minimum tread depth for decent grip in wet conditions. watch the video and make your own mind up.