Description
Carburetor Repair Kit for Johnson/Evinrude V4 & V6 Crossflow Outboards
The iFJF 18-7046 carburetor repair kit is specifically engineered for the V4 (85, 90, 100, 115, 140 HP) and V6 crossflow Johnson and Evinrude outboard engines. These legendary 2-stroke powerheads rely on precision carburetion for their signature performance — and this kit provides everything needed to restore each carburetor to factory specifications. Replaces OEM 439076 and covers V4 Crossflow and V6 Crossflow carbureted models.
Key Features
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V4/V6 Crossflow Specific: Engineered for the high-performance carburetor design used on Johnson/Evinrude 85-140HP V4 and 150-235HP V6 crossflow engines.
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Complete Rebuild Kit: Float bowl gasket, inlet needle & seat, all body gaskets, mixture screw o-ring, welch plugs, and drain screw washers.
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High-Performance Fuel Systems: Precision needle & seat ensures consistent fuel level control at the high fuel flow rates demanded by V4 and V6 carburetors at WOT.
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Ethanol-Ready: Upgraded materials resist the ethanol-related degradation that plagues original 1980s-1990s rubber components.
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Restores Peak Power: Fixes lean conditions, fuel starvation, and uneven cylinder-to-cylinder fuel distribution that robs horsepower.
Compatibility
| Engine Family |
HP Range |
Configuration |
Carb Count |
| V4 Crossflow |
85, 90, 100, 115, 140 HP |
V4 2-stroke |
2 carburetors |
| V6 Crossflow |
150, 175, 200, 225, 235 HP |
V6 2-stroke |
3 carburetors |
Cross-Reference / Interchange
| Brand |
Part Number |
| Johnson / Evinrude OEM |
439076 |
| Sierra Marine |
18-7046 |
| GLM Marine |
40570 |
| Mallory Marine |
9-37100 |
Installation Considerations for Crossflow Engines
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Carb synchronization is critical: After rebuilding all carburetors, adjust the throttle linkage so all throttle plates open simultaneously. Uneven opening causes cylinder-to-cylinder fuel imbalance.
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Check reed valves: While carbs are off, inspect the reed valves for chipping or fatigue. Damaged reeds cause spit-back and poor low-speed running.
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Verify timing: After carb rebuild, verify WOT timing with a timing light. Lean conditions from vacuum leaks can cause detonation at high RPM.
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Link and sync procedure: Follow the factory "link and sync" procedure for your specific model to set idle timing, pickup timing, and WOT timing correctly.
Frequently Asked Questions
Q: Will this fit my 1985 Johnson 115 HP V4?
A: Yes, if your 115HP V4 uses the crossflow carburetor design (most 1980s models do). Verify your carburetor's OEM part number is 439076 or the equivalent crossflow carb series.
Q: How many kits do I need for my V6 200 HP?
A: V6 crossflow engines use 3 carburetors — you'll need 3 kits for a complete rebuild. Always rebuild all carburetors simultaneously for balanced performance.
Q: Does this kit work for looper engines?
A: No. This kit is for crossflow (deflector piston) engines only. Looper engines (60-degree V4 and V6 loop-charged models) use different carburetors. Verify your engine type before ordering.
Q: What's the most common mistake during V4/V6 carb rebuild?
A: Failing to properly synchronize the carburetors after installation. Even with perfectly rebuilt carbs, uneven throttle plate opening creates cylinder-to-cylinder imbalance. Always perform a link & sync procedure after rebuild.
Q: My engine bogs when I hammer the throttle — will this fix it?
A: Possibly. Bogging on acceleration is often caused by clogged high-speed jets or a failing accelerator pump circuit. The thorough cleaning during rebuild combined with new components addresses these issues. If bogging persists, check the accelerator pump diaphragm separately.
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