Re: Carburetors, Linkerts used on all K Models
Posted: Tue Apr 20, 2021 6:55 pmCave's OSC wrote:Mayday53.
The stock Linkert float. Original cork. However no matter what any of the float's type's or materials. Be sure that they are not compromised and in good shape. See H-D shop manuals for float adjustment. It's 3/16" from edge of bowl to top of float.
The high speed needle and low speed needles of the K model M53 are unique to K model Linkert's and need to be correct (some have misguidedly install incorrect needles and have over tighten the low speed). The high speed is steel, and the low is brass. The needle's point needs to be undamaged, if they are damaged, they will need to be replaced. If minor (very minute groves can be fine sandpapered smooth. 600 to 800 grit). Both are adjustable and can be 'adjusted' to suit your engine.
Bore, stroke, cam, valves all need to be taken into consideration and effect the carburetor's jets, venturi, and nozzles If your engine is relatively within stock limits all your Linkert's parts will work. HOWEVER, the carb needs to be overhauled correctly. Most parts and the body itself can be repaired, with the exception of the idle port. If this is damaged or corroded to the point of damage, the body in my opinion is not useable.
THEN, the carb installed CANNOT have any air leaks! This can be pressure tested, and/or if you know what you are doing, you can get the engine running and using a spray can of fluid (your experience choice) spray the manifold nuts, manifold to carb joint, to see if there are any 'leaks'. No matter if your carb is good, you can't tune a engines that has air leaks at the carb and it certainly will never run correctly.
Just noticed this...thanks for sharing the information Cave's OSC. We were going to tune it a couple weeks ago, then found a couple other issues to resolve first...like a loose swingarm and we are using a bump starter on bench...I am learning if it is not one thing, it is 7 others. Ha!
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