I've had some problems with my Weber 34 ICT carbs and i found this guy via google. Mike Leather https://www.wayoutwestie.com/ Mike has a lot of experience with ICTs and ran them on his own bus which he's taken on some mega adventures including a trip across the states. https://www.wayoutwestie.com/running-weber-icts-on-a-vw-aircooled-engine/ Mike came to my house and worked all day on the carbs. Mike's a great guy, very knowledgable, helpful and honest - spent a day fettling in my garage; he removed and stripped both carbs, cleaned, adjusted and rebuilt with the new parts, refitted, balanced and setup the linkage and installed the Huco pump. The bus runs way better now. V pleased with the results. I'd recommend Mike very highly.