I have been considering going the Mikuni way, but is it really worth the bother and expense? The original carb on my 1978 Supa 5 is corroded inside and has a few battle scars when accidently dropped off the work bench? The carb body was knocked out of true but after a few hours careful work I got the slide working smoothly and all things seem in order. Unfortunately as a newbie to MZ’s I have no experience of these engines but it certainly runs OK. Starting from cold is reasonable providing I follow the “code” but slow speed running is a bit rough but reliable. Phil Speakman has replacement carbs manufactured by IFA. Has anyone any comments on these?