Moturo carburetor 18mm suitable for Honda MB MBX MT MTX 50

Moturo 18mm Carburetor for Honda MB MBX MT MTX 50 and 80

The Moturo 18mm bore carburetor for Honda MB 50/80, MBX 50/80, MT 50/80, and MTX 50/80 — the component that prepares the fuel-air mixture and controls idle, transition, and full-load operation. Bolted flange, ready for installation.

The carburetor sits between the air filter and the intake manifold. Connection to the intake manifold is a bolted flange with a 48mm hole spacing; air filter connection diameter is 37mm. Main jet 115 and idle jet 115, both with 5mm thread; designed as an exact replica of the OE carburetors for this Honda model series.

Replacement takes about an hour using a screwdriver set, a socket wrench for the flange nuts, and hose clamp pliers.

Carburetor for the MB, MBX, MT, MTX, made by Moturo.

Performance · Material · Specifications

• Bore: 18mm
• Flange to intake manifold with 48mm hole spacing
• Air filter connection diameter: 37mm
• Main jet 115 / idle jet 115, each with 5mm thread

Important Notes – Please Read

Original spare part design; no separate ABE (general operating permit) required. Check jetting before initial operation and tune to your bike’s intake and exhaust configuration.

Tools & Time Required

• Screwdriver set (flat-head and Phillips)
• Socket wrench for flange nuts
• Hose clamp pliers for the air filter connection
• About one hour for an experienced mechanic

Scope of Delivery

1 × 18mm carburetor with installed jets (main jet 115, idle jet 115). Not included: flange gasket, hose clamps, throttle cables, tools.

Frequently Asked Questions

Are the installed jets ready to go out of the box?
The 115/115 jetting matches the OE specification. Check before operation if using a non-standard air filter or exhaust.

Do I need a TÜV registration?
No. Original spare part design, no registration required.

Does the carburetor also fit the 80cc models?
Yes, MB 80, MT 80, and MTX 80 use the same mounting flange with 48mm hole spacing.