Honda motorcycle parts
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1969 Honda CB450K · Air Filters & Vent Filters Buying guide
The chrome-cap pod is sold each. Its description calls for measuring the carburetor inlet outside diameter and warns of possible jetting and tuning changes. It does not supply an original air-box element or prescribe a carburetor calibration.
A 49mm mounting check does not describe the entire filter body. The listing does not provide full body dimensions, so confirm those needed for a close-fitting custom arrangement before ordering. Measure the actual carburetor being used rather than its internal bore or a nominal model specification.
The product warns that jetting and tuning changes may be needed but gives no required jet sizes. Evaluate the fitted carburetor and intake arrangement before selecting metering parts. The separate #35 pilot and the premium kit’s #40 pilot remain choices requiring their own checks.
The specified check is the outside diameter of the carburetor inlet where the filter mounts. The internal bore is a different measurement. Confirm the attachment surface and available room on the carburetor you are actually fitting.
Confirm the filter body and cap dimensions needed for that space. Only the 49mm mounting size is given in the description. Matching that size does not resolve body clearance in a tight or modified intake layout.
The filter description does not specify #35 or any other jet size. It notes that tuning and jetting changes may be required. Select the pilot pattern and size from the requirements of the installed carburetor and intake setup after that assessment.
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