JLM MARINE Carburetor Rebuild Kit for Johnson Evinrude 18–75 HP 396701 — 3-Set Service Pack, Gaskets & Diaphragms

JLM MARINE 396701 Carburetor Rebuild Kit supplies the gaskets, seals, and components needed to rebuild Johnson/Evinrude carburetors used on 18–75 HP outboards.

This rebuild kit is designed for hobbyists and professional marine technicians who need a complete set of wear items to restore reliable fuel metering on many older Johnson, Evinrude and compatible OMC carburetors. The kit includes three complete sets of parts packaged together and covers a wide range of part numbers, making it a convenient service pack when working on multi-carburetor engines or stocking a workshop.

What exact engines and carburetors will this kit fit?

The JLM MARINE 396701 kit fits many Johnson and Evinrude OMC carburetors across 18–75 HP models. It lists compatibility with several OEM part numbers and also matches aftermarket Sierra and Mallory references often used in marine repair.

• Covers Johnson/Evinrude OMC part numbers: 396701, 398729, 777717, 392061, and more.
• Also suitable for Sierra 18-7042, 18-7222 and Mallory 9-37105, 9-37107 carburetors.
• Fits outboard power ranges: 18, 20, 25, 28, 30, 35, 40, 45, 48, 50, 55, 60, 65, 70, 75 HP.

How does this kit help restore carburetor performance?

Worn gaskets, hardened seals and degraded diaphragms allow air or fuel leaks that upset the air–fuel mixture. Replacing all those consumable parts renews sealing surfaces and metering functions, making tuning and starting more predictable.

• Replaces critical gaskets, seals, diaphragms and O-rings that degrade over time.
• Removes common causes of fuel leaks, flooding, hard starts and rough idle.
• Includes multiple sets so you can service more than one carburetor without having to reorder.

What’s included in the kit and how should it be used during a rebuild?

The kit supplies the typical service items technicians need when disassembling and rebuilding a carburetor. Use the parts to replace worn seals and diaphragms, then inspect metal parts and passages for corrosion or varnish before reassembly.

• Three complete repair sets per package — ideal for twin engines or spare parts stock.
• Gaskets, multiple seals, diaphragms and small O-rings provided for full top-to-bottom servicing.
• Fitment requires basic carburetor disassembly, cleaning with appropriate solvent, and careful reassembly following OEM clearances and torque specs.

Will this kit solve all carburetor problems on older outboards?

While the kit replaces the majority of wear components, it cannot correct damaged castings, stripped threads, severely clogged internal jets, or warped metal parts. Use the kit as the first step in a full rebuild; perform inspection and cleaning to determine if additional parts or machining are needed.

• Great for replacing degraded rubber and paper components that commonly fail.
• Not a substitute for replacement of corroded bodies, damaged floats or missing jets.
• Combine with thorough cleaning and inspection to achieve reliable results.

Who is this for: Boat owners, marine mechanics and restoration specialists working on vintage and mid-era Johnson and Evinrude outboards will find this JLM MARINE 396701 kit useful. It’s specifically meant for technicians who plan to service multiple carburetors or keep a compact stock of common rebuild parts to reduce downtime and make on-water repairs more efficient.