JLM MARINE Carburetor Repair Kit for Johnson Evinrude 90-175HP — 4pcs 438996, Full Gasket & Diaphragm Set

JLM MARINE 4PCS 438996 Carburetor Repair Kit is a complete four-set rebuild package that restores worn or leaking carburetors on Johnson/Evinrude OMC 90–175 HP outboards.

If your Johnson or Evinrude outboard is showing rough idle, hesitation, or fuel leakage, a worn carburetor rebuild set can bring it back to reliable running condition. This kit contains four full carburetor repair sets designed to replace the original factory gaskets, seals, diaphragms, and small parts that commonly degrade over time. It is engineered to match the fit and function of multiple OEM part numbers so you can repair several carburetors without searching for individual pieces.

Which engines and part numbers does this kit support?

This repair kit is tailored for Johnson/Evinrude OMC outboard models rated 90HP through 175HP. It directly replaces several OEM and aftermarket references, simplifying parts selection for common rebuild jobs.

• Compatible power ranges: 90HP, 105HP, 115HP, 150HP, 175HP
• Replaces Johnson Evinrude part numbers: 438996, 435442, 436852, 777719
• Also cross-references Sierra 18-7247 and Mallory 9-37102 / 9-37108
• Includes four identical repair sets so you can service four carburetors or keep spares on hand

What components are included and what do they restore?

The kit supplies the small consumable parts that most affect fuel metering and sealing. Replacing these items addresses leaks, inconsistent idling, and poor throttle response that result from hardened gaskets and fatigued diaphragms.

• Gaskets and O-rings to re-seal mating surfaces and fuel passages
• Diaphragms and needle components that control fuel flow and float operation
• Small springs and clips needed to restore proper mechanical action
• Four full sets allow multi-carburetor rebuilds or kit redundancy

How does installing this kit affect engine performance?

Installing fresh gaskets and metering parts helps the carburetor form correct air-fuel mixtures and prevents vacuum or fuel leaks that degrade performance. Properly rebuilt carburetors provide smoother idle, more predictable throttle transitions, and reduced fuel seepage, without altering engine specifications.

• Helps re-establish correct fuel metering and idle stability
• Reduces chances of fuel or air leaks from worn seals
• Improves drivability and throttle response under load
• Maintains original engine tuning when installed correctly

Can I use this kit for routine maintenance or only repairs?

This set works both for planned maintenance and for repairing carburetors showing symptoms of wear. Technicians and DIY owners commonly carry this kit as a preventive spare to avoid downtime during season launches or long trips.

• Useful as a preventative service kit during seasonal tune-ups
• Handy for on-the-water repairs when spares are required
• Four kits in the package give flexibility for multi-carburetor engines
• No special calibration parts included—follow service manual instructions

Who is this for: Boaters, marine mechanics, and restoration shops working on Johnson or Evinrude OMC outboards from 90HP to 175HP who need a reliable set of replacement carburetor gaskets, diaphragms, and small parts. This product suits anyone performing a multi-carburetor rebuild or stocking maintenance spares for seasonal service; it matches several OEM part numbers to simplify purchasing and compatibility checks. Always consult the engine service manual for disassembly and reassembly procedures, and verify part cross-references for your specific model year before installation.