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For what it's worth, I just bought and installed a pair of new Amal Premiers on my 1974 850 MKII. When purchased, the bike had a single Mikuni fitted and ran like a pig, (the carb had apparently suffered the ravages of Ethanol based fuel and been mutilated by a previous owner). I replaced the Mikuni with a pair of "sort of" rebuilt used standard Amals and for the most part the bike ran very nicely. The only (carb related) issue was that the left side insisted on running rather lean. Anyway, I purchased the premiers from Greg Marsh and the bike now runs beautifully! Thank you Greg! Yes, I still have some fine tuning to do and yes I had to play about with the idle screws and idle mixture, but nothing I would consider difficult or unexpected. Greg knew what jets etc worked best for my application and supplied the carbs accordingly.It seems to me that what is important here is the need to obtain parts from people who know what they are talking about. My pistons and rings are from Jim Schmidt, the installation of which cured my bikes tendency to smoke like a chimney. Jim obviously also knows what he is talking about. I have no doubt the Keihin carbs are awesome, but hopefully with care and ethanol free fuel my Amal Premiers will serve for a long time to come.We all have our own preferences, nothing wrong with that. My carb related sickness is I like SU's. Have often fantasized about finding one for the Commando.
For what it's worth, I just bought and installed a pair of new Amal Premiers on my 1974 850 MKII. When purchased, the bike had a single Mikuni fitted and ran like a pig, (the carb had apparently suffered the ravages of Ethanol based fuel and been mutilated by a previous owner). I replaced the Mikuni with a pair of "sort of" rebuilt used standard Amals and for the most part the bike ran very nicely. The only (carb related) issue was that the left side insisted on running rather lean. Anyway, I purchased the premiers from Greg Marsh and the bike now runs beautifully! Thank you Greg! Yes, I still have some fine tuning to do and yes I had to play about with the idle screws and idle mixture, but nothing I would consider difficult or unexpected. Greg knew what jets etc worked best for my application and supplied the carbs accordingly.
It seems to me that what is important here is the need to obtain parts from people who know what they are talking about. My pistons and rings are from Jim Schmidt, the installation of which cured my bikes tendency to smoke like a chimney. Jim obviously also knows what he is talking about. I have no doubt the Keihin carbs are awesome, but hopefully with care and ethanol free fuel my Amal Premiers will serve for a long time to come.
We all have our own preferences, nothing wrong with that. My carb related sickness is I like SU's. Have often fantasized about finding one for the Commando.
