My friend swapped out a Mikuni for a pro rebuilt Linkert M-54 that did not work then a 20230623_104429.jpg20230627_133527.jpg M-88, from the same supplier that is currently on his stock motor WLA bob job.
Problem is the machine runs consistently rich, real rich to where it won't run in traffic or idle down.
As soon as he shuts off the gas at the petcock in a few seconds it runs great as it always did until it starves and stops.
He/we have swapped out floats (both Duckies) needles and seats, levers and lowered the float a bit to increase pressure on the needle. He also installed and checked the intake seals, peek, although it never had a previous problem with the brass seals.
Still runs like crap. Is consistently running rich even with the low speed needle turned all the way in.
I have an assortment of old OEM used seats and valves, some have smaller internal diameter and have round valves and some are bigger with square shaft. Since they all have the same part number I wonder what is the difference?
I'm basically a Panhead guy and have very little knowledge of the 3 bolt and other flathead carb business so any help sorting this out will be most appreciated.
Problem is the machine runs consistently rich, real rich to where it won't run in traffic or idle down.
As soon as he shuts off the gas at the petcock in a few seconds it runs great as it always did until it starves and stops.
He/we have swapped out floats (both Duckies) needles and seats, levers and lowered the float a bit to increase pressure on the needle. He also installed and checked the intake seals, peek, although it never had a previous problem with the brass seals.
Still runs like crap. Is consistently running rich even with the low speed needle turned all the way in.
I have an assortment of old OEM used seats and valves, some have smaller internal diameter and have round valves and some are bigger with square shaft. Since they all have the same part number I wonder what is the difference?
I'm basically a Panhead guy and have very little knowledge of the 3 bolt and other flathead carb business so any help sorting this out will be most appreciated.
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