I'm trying to identify some Yamaha 40hp carbs I bought for my 1986 40hp three cylinder. My Clymer Yamaha outboard shop manual only goes to 1989 or up to carb number 6H410. These carbs are marked Keihin 6H411-FA19 so I'm guessing at 1990 or 1991. Can someone look in a newer manual and give me the year and specs such as main jet, main air jet, idle jet, and idle air jet for these carbs? Also, these carbs do not use a choke system and don't have the butterfly in the front of the carbs. They use a type of enrichner that squirts fuel in the manifold behind the carbs. If someone has this type of setup can you tell me where the fitting is so I can install one on my old engine. Finally can someone confirm that I have an 1986 engine. The serial number is 40ETLJ 6H4L552918. My manual only tells me where the number is located but not much else. Thanks for any help.
