16100-Z9L-811 Carburetor Tune Up Kit, Replacement for Honda GCV170 GCV170LA G5B G5BR S3B Lawn Mower, Replacement for HRN216 HRN216PKA HRN216PKAA Lawn Mower

What It Is

This is a carburetor tune-up kit designed to replace gaskets, seals, and small components in Honda GCV170 engines, specifically for lawn mowers like the HRN216 series. It restores fuel system performance by addressing air leaks and fuel flow issues.

Fitment & Compatibility

Before buying, confirm your engine model (e.g., GCV170LA, G5B, S3B) and mower model (e.g., HRN216PKA). This kit is OEM Honda (part 16100-Z9L-811), so it matches factory specs for these engines. Check your mower’s deck size—typically 21-inch for HRN216 models—but the kit itself fits the engine, not the deck. Verify the kit includes all needed gaskets, o-rings, and seals for your specific carburetor variant; some GCV170 engines have slight differences in float bowl or jet sizes.

Key Things to Know

• Quality concerns: With a 3.0 rating from only 1 review, there may be fitment or durability issues—inspect gaskets for proper sealing before installation.
• Installation difficulty: Moderate; you’ll need basic tools (screwdrivers, carb cleaner) and patience to remove the carburetor without damaging plastic parts.
• Common gotchas: The kit may not include a new fuel shutoff valve or fuel line—check those separately. Also, ensure the old carburetor is cleaned thoroughly; a tune-up kit won’t fix clogged jets.
• OEM vs aftermarket: This is genuine Honda, so it should match OEM tolerances, but some users report missing or slightly off-sized o-rings—double-check against your old parts.

Should You Buy It

If you own a Honda GCV170-powered mower with symptoms like hard starting, rough idle, or fuel leaks, and you’re comfortable with basic carburetor service, this kit is a solid OEM choice. However, given the low rating and limited feedback, you might consider a higher-rated aftermarket kit or a full carburetor replacement if you’re unsure about installation.