MOTOALL carburetor for Husqvarna K750 K760 K770 C3-El43C — direct-fit OEM-compatible replacement, ready for K760

When a saw starts to run rough, stalls at idle, or refuses to reach full throttle, the carburetor is often the culprit. This MOTOALL unit is built to match the fit and function of the OEM Zama-style C3 family, offering an economical option to replace part numbers 510181202 and 578243401. It’s supplied ready for typical K760 installations and requires a simple, one-time modification (blocking an extra fuel inlet) for K750 models.

Will this carburetor fit my Husqvarna saw?

Yes—this MOTOALL C3-El43C is designed for several Husqvarna cut-off and rescue saws. It replaces common OEM references and works straight out of the box on K760 machines; K750 requires a small adjustment described below.

• Compatible models: K750, K760, K770 and related Cut-n-Break and Rescue variants (2009–2012 era).
• Replaces OEM numbers: 510181202, 578243401, 578 24 34-01.
• No extra parts needed for K760; K750 needs the extra fuel inlet blocked off.
• Designed to match mounting points and throttle linkage of original units.

How do I install and adjust this replacement carburetor?

Installation follows the same steps as swapping an OEM carburetor: remove the air filter and intake boot, detach linkage and fuel lines, then mount the new unit. After fitting, adjust the idle and mixture using the saw’s standard adjustment screws and follow manufacturer start-up procedures.

• Disconnect fuel line and throttle linkage before removal to avoid spills and damage.
• For K750: block the extra fuel inlet to prevent flooding (simple plug or solder cap recommended).
• Set initial high/low speed screws to manufacturer baseline and fine-tune under load.
• Check for leaks, secure clamps, and run warm-up tests before cutting work.

What performance and durability can I expect?

This carburetor is manufactured to deliver stable fuel metering and reliable throttle response comparable to Zama C3-series units. Materials and tolerances support regular construction and rescue use, but like all carburetors they benefit from clean fuel and periodic maintenance.

• Stable idle and improved throttle spool-up when matched and tuned properly.
• Corrosion-resistant components for longer service life with appropriate fuel care.
• Serviceable design: accessible adjustment screws and replaceable gaskets if needed.
• Economical replacement option vs. OEM price while maintaining compatibility.

Who is this for? This MOTOALL C3-El43C carburetor is aimed at DIY mechanics, maintenance shops, and professional contractors who need an affordable, reliable replacement for Husqvarna K-series cut-off and rescue saws. If you operate a K760 and want a drop-in replacement, this unit works with no alteration; K750 owners who are comfortable performing one small inlet modification will also find it a cost-effective fix. It’s a practical choice for anyone restoring throttle performance, eliminating fuel leaks, or replacing a damaged carburetor while keeping downtime and expense to a minimum.