About the Yamaha XJ750X Maxim X
Maxim X applications for 1985–1986, with a separate 1986 exhaust-joint choice.
The XJ750X Maxim X combines a liquid-cooled inline-four, five valves per cylinder and shaft drive. Its sidedraft carburetors distinguish it from the related FZ750’s downdraft arrangement.
Select the repair, then check its year
The fuel, valve-cover and front-end parts list 1985–1986. Exhaust coverage is narrower: the muffler joint gasket covers 1986 only. Use the repair sections to compare each component and its package quantity.
Know your XJ750X before choosing partsXJ750X model and repair differences
Use the model, year and installed assembly together when comparing parts.
1985–1986 stated fitment
Float valve and bowl seal
Float needles and bowl gaskets perform different jobs within the carburetor.
1985–1986 stated fitment
Head cover and front end
The valve-cover gasket and fork-seal set are specific examples for XJ750X.
1986 stated fitment
Exhaust slip joint
The muffler joint gasket seals a pipe-to-pipe connection.
Identify your motorcycle before orderingXJ750X identification checklist
Keep the frame and engine records together. Confirm the model year using documentation that matches the motorcycle’s market and full model designation.
- Record XJ750X and the complete frame/model label, retaining any market suffixes.
- Confirm the model year from matching Yamaha documents and note any replacement engine or carburetor assembly.
- Photograph the carburetor body markings, float valve and bowl gasket outline before ordering fuel-system parts.
- Measure the installed fork seals and exhaust slip joint rather than relying on the tank badge.
Contact PartsNMore with clear photos of the frame and engine markings and the component you need. Include any known replacements or modifications.
Research notes: motorcycle details were checked against manufacturer service literature; part fitment follows the linked PartsNMore product pages.