JLM MARINE Carburetor Repair Kit for Johnson/Evinrude/OMC 18–75 HP — two complete rebuild sets, gaskets & diaphragms

The JLM MARINE 396701 carburetor repair kit supplies all essential gaskets, seals and components needed to rebuild Johnson/Evinrude/OMC carburetors from 18 to 75 HP.

If your outboard is showing signs of poor idling, reduced throttle response or fuel leaks, a targeted carburetor rebuild often restores reliable performance without replacing the entire carburetor. This JLM MARINE kit includes two complete sets of repair parts designed to fit a wide range of Johnson, Evinrude and OMC models as well as compatible Sierra and Mallory carburetors. The kit replaces worn diaphragms, gaskets, needles and seals that commonly cause air/fuel metering issues when degraded by age, varnish or contaminants.

Which engines and carburetor models does this kit fit?

This kit is engineered for Johnson/Evinrude/OMC outboards rated between 18 and 75 horsepower. It covers many OEM part numbers and is also cross-compatible with select Sierra and Mallory assemblies, making it useful for common small- to mid-size outboards.

• Fits Johnson/Evinrude/OMC part numbers including 396701, 398729, 777717 and others
• Compatible horsepower range: 18–75 HP (models such as 18, 20, 25, 30, 40, 50, 60, 70, 75)
• Workable with Sierra 18-7042, 18-7222 and Mallory 9-37105/9-37107 carburetors

What components are included and how do they restore performance?

The kit bundles the critical wear items that control fuel flow and sealing surfaces inside the carburetor. Replacing these parts cures common failure modes like vacuum leaks, fuel weeping and improper float control, helping the engine return to consistent starting and throttle response.

• Two complete sets of gaskets, diaphragms and seals to rebuild dual carburetor units
• Needles, seats and small valve components that regulate fuel metering
• All sealing parts necessary to eliminate air and fuel leaks that upset idle and mixture

How difficult is installation and what tools or skills are required?

Rebuilding a carburetor typically requires basic mechanical skill, a clean workspace and a small set of hand tools. If you have experience disassembling small engines or following step-by-step service manuals, the kit provides everything to complete a rebuild; beginners may prefer to consult a repair guide or professional to avoid misassembly.

• Recommended tools: screwdrivers, small pliers, clean rags, carburetor cleaner and a service manual
• Time estimate: 1–3 hours per carburetor depending on experience and cleanliness
• Tip: work methodically, photograph parts during disassembly, and replace parts in matched sets

Will this kit prevent future carburetor problems?

While the repair kit replaces the common wear components that cause most operational issues, ongoing prevention depends on fuel quality and storage practices. Using fresh fuel, fuel stabilizer and routine inspection will prolong service life after the rebuild.

• Addresses root causes like worn seals and clogged passages when parts are replaced correctly
• Not a substitute for cleaning or addressing corroded castings—inspect housings before reassembly
• Combine with clean fuel and proper storage to reduce future varnish and clogging

Who is this for: The JLM MARINE 396701 carburetor repair kit is aimed at boat owners, DIY mechanics and marine technicians working on small to mid-size Johnson/Evinrude/OMC outboards who want a cost-effective rebuild solution. It’s a practical choice for owners restoring performance, eliminating fuel leaks or preparing engines for seasonal use, and for shops that service multiple compatible models.