Mikuni Carburetor | TM33-8012 | 33mm TM Mikuni Carburetor

Originally designed as a stock carb for performance-oriented Suzuki DR350 models, the TM33 has become a favorite aftermarket choice for a wide range of bikes and quads, including Kawasaki KLX250/300, Yamaha TTR250, Suzuki DRZ250, junior dragsters, and many 250–350cc 4-stroke singles or 500–750cc twins where it physically fits. It's also a fast, straightforward swap for numerous 350–500cc ATVs/quads with side-rotor throttle setups.

Key Dimensions (TM33-8012):

• A (Outlet / spigot diameter): 40mm
• B (Width): 93mm
• C (Height / overall length): 160mm
• D (Inlet diameter): 50mm

Note: These measurements exclude the prominently protruding external bell crank / cable bracket, which can be easily cut down, modified, or rotated (e.g., forward on some Suzukis) to suit tight spaces. Fitment success often depends on available clearance above the carb—many Yamaha applications install with minimal hassle, while some quads may require more adaptation or simply won't accommodate it.

For direct replacement compatibility, compare your existing carb's dimensions against A, B, and D above. Check photos on graph paper (with 10mm grid lines and 1mm increments) for space evaluation in custom or non-standard applications.

If your airbox spigot or required carb length doesn't match perfectly but you want to retain the OEM airbox (instead of switching to pod filters), explore our air-cleaner adapter options. Custom sleeves or extensions can be fabricated affordably by a local machine shop or muffler shop using a pipe expander—well worth the minor effort for superior results.

Installation Tip: This carb packs significantly more responsive power right from the start. Take it easy on your first rides to adjust to the increased performance and avoid surprises.

Upgrade to the TM33-8012 for unmatched flat-slide performance—sharper, stronger, and more fun across the rev range! Any questions feel free to contact us