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great thinking !

It is surprising all the places crap can hide in these carbs. This bike had been sitting for 6 years and the tank was terrible with strong smell of varnish when the cap was popped. Carbs back together and back on the bike for the umpteenth time. She runs like a dream now, easy to start, beautiful idle and responsive throttle. Have left all idle screws at 3.5 turns out and don't have a colour-tune plug to fine tune - is there an alternative?