whataulooknat
Been Around the Block
Well upon tearing into my carburetors on my 74 CB450 I've come to the realization that the needles are not adjustable on the Keihin Carbs. What can I do about this? the needle bumps all the way against a seat so adding washers won't raise it. Anyone figured out how to richen the mid range on these old bikes without going mikuni. Also dirty carbs aren't the problem. Its lean because the engine is bored out. The bike has good color on the top end and good color at idle but steady mid throttle cruising is lean.