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Hi everyone,
I have a 2000 Katana 750 with aftermarket exhaust and Factory Pro Jet kit installed. About three months ago I removed the carburetor bank for cleaning which I have done many times in the past with no issue. Cleaned everything as usual and meticulously replaced each and every o-ring, spring, jet, etc. Put the carbs back on and now I have the following issue:
At approximately 3k RPM with just a small amount of throttle in order to maintain speed (slow speed cruising) the engine studders and runs rough. Once I top about 4500 RPM it smooths out. When Im accelerating hard it runs perferctly. It idles perfectly.
-I have checked, rechecked, and checked again jets, emulsion tubes, needle height, and float height. Float height is at 10mm but this has always been the level and ran perfectly before.
-All hoses have been checked.
-Fuel filter has been checked - clear.
-Fuel intake boots have been removed, the gaskets replaced, and checked for leaks afterward. No leaks.
-The connections between the carbs and manifold boots have also been checked for air leaks. None.
-The slide diaphragms are intact and in excellent condition with no tears. Also the O rings along the gasket of the 'caps' are intact as well.
Anyone have any ideas? Im at the point to where Im ready to just purchase another bank of carburetors.
I have a 2000 Katana 750 with aftermarket exhaust and Factory Pro Jet kit installed. About three months ago I removed the carburetor bank for cleaning which I have done many times in the past with no issue. Cleaned everything as usual and meticulously replaced each and every o-ring, spring, jet, etc. Put the carbs back on and now I have the following issue:
At approximately 3k RPM with just a small amount of throttle in order to maintain speed (slow speed cruising) the engine studders and runs rough. Once I top about 4500 RPM it smooths out. When Im accelerating hard it runs perferctly. It idles perfectly.
-I have checked, rechecked, and checked again jets, emulsion tubes, needle height, and float height. Float height is at 10mm but this has always been the level and ran perfectly before.
-All hoses have been checked.
-Fuel filter has been checked - clear.
-Fuel intake boots have been removed, the gaskets replaced, and checked for leaks afterward. No leaks.
-The connections between the carbs and manifold boots have also been checked for air leaks. None.
-The slide diaphragms are intact and in excellent condition with no tears. Also the O rings along the gasket of the 'caps' are intact as well.
Anyone have any ideas? Im at the point to where Im ready to just purchase another bank of carburetors.
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