MOOSUN Go-Kart CVT Torque Converter Kit 3/4" Comet TAV2 Replacement — 30-Series Asymmetrical, Includes 10T & 12T Sprockets

MOOSUN's 30 Series CVT torque converter kit is a complete 3/4" replacement assembly that restores smoother acceleration and higher top speed to small-engine go-karts using Comet TAV2 style clutches.

If your kart uses a 3/4" straight crank and a Comet-style TAV2 torque converter, this MOOSUN kit gives you the full clutch assembly, two sprocket options, an appropriately sized drive belt, and all mounting hardware to get back on the trail quickly. Designed for small engines from about 2 hp up to roughly 8 hp, it installs where Comet part numbers 218353A, 219552A, 219456A, or 217610A fit — offering an economical aftermarket replacement that supports a range of chain sizes and riding conditions.

How will this torque converter affect performance on my go-kart?

The MOOSUN torque converter uses an asymmetrical 30-series design to reduce engine load at lower speeds and provide a wider, more usable speed band. You’ll notice smoother starts and the ability to reach higher RPMs more efficiently, which can translate into better acceleration and top-speed potential under load.

• Asymmetrical 30-series pulley geometry for broader torque transfer
• Reduces lugging on small displacement engines
• Enables smoother throttle response from standstill to cruising speed

Which engines and drivetrains are compatible with this kit?

This clutch kit fits engines with a 3/4" straight crankshaft and is compatible with Comet TAV2 style applications listed above, as well as many Manco karts. It supports common chain sizes by including two sprocket options so you can select the correct drive ratio for your setup.

• Fits 3/4" (0.75") crankshafts — direct replacement for Comet TAV2 series
• Includes 12T sprocket for #35 chain and 10T sprocket for #40/#41/#420 chain
• Recommended engine range: approximately 2 hp to 8 hp

What comes in the MOOSUN torque converter kit and what are the belt details?

The package supplies every major component needed to mount and run the converter: driver pulleys, mounting plate, protective cover, a drive belt sized for the assembly, both sprockets, and full fasteners. The belt dimensions and center-to-center spacing accommodate common go-kart layouts.

• 1 x 3/4" driver pulley and 1 x 5/8" driver pulley for varied setups
• Drive belt length 70.5 cm (27.76") with 3/4" (1.9 cm) width
• Center-to-center pulley spacing usable between 6-15/16" and 7"
• Includes plastic cover, aluminum mounting plate, 10T and 12T sprockets, and hardware

How difficult is installation and what should I watch for?

Installation requires basic mechanical skills and standard hand tools; you’ll remove the old clutch and bolt the MOOSUN assembly to the mounting plate, route the belt to the correct tension, and install the sprocket matching your chain. Verify shaft size and chain compatibility before starting and torque fasteners to safe values.

• Confirm 3/4" crankshaft and TAV2-style mounting before ordering
• Use proper belt tension and align sprockets to avoid premature wear
• Chain is not included — order the correct size (#35, #40/#41/#420) separately

Who is this for: The MOOSUN 30 Series torque converter kit is aimed at hobbyists, kart racers, and DIY mechanics who need a full replacement clutch for Comet TAV2 compatible karts, riders improving acceleration on small engines, or anyone converting between chain sizes. It’s a practical aftermarket option if you want a ready-to-install assembly with multiple sprocket choices and clear belt specifications. Note: this product is an aftermarket MOOSUN unit, not manufactured by Comet.