VL1500 Intruder Fuel Screw operation, location and cap removal
On most Mikuni carbs, the plugs are brass, have a very small hole in the center and about the diameter of a pencil. They may also be a machined disc of aluminum pressed into the carb body.
The VL1500 LC Intruder, like most Mikuni carbs of late, has the fuel screws located on the bottom of the carb, pointing up when the carb is installed. Often, you can see the tip of the tapered screw on the bottom of the bore of the carb, just "downwind" of the carb butterfly when the screw is turned all the way in.
Usually, if all jetting, including fuel level/float height, is correct, the best
setting for the fuel response and cruise operation will be in the range of 1.5x to 3.5x
out from lightly bottomed out.
The pilot jet and the fuel screws are the final control adjustment for idle and part
throttle (like 1/8 throttle) operation.
The 2 brass fuel screw caps are circled in blue.
To remove the cap:
Get a self tapping screw, like a sheet metal screw and a drill bit that is equal to the
"root" diameter of the threads.
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