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Mikuni Main Jets

5.0 out of 5 stars 1 Customer Reviews

Mikuni main jets are available in a wide range of sizes to accommodate your exhaust flow volume requirements. Standard tuning seldom needs more than small adjustments to accommodate a wide range of engine setups. One of the more common required changes is the main jet size. Install Mikuni main jets when you are ready to re-tune and get the most out of your engine.

Results 1 - 25 of 142

Carburetor Main Jet, Brass, Mikuni, 260, Set

Part Number: MKU-4042-260

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Carburetor Main Jet, Brass, Mikuni, 290, Set

Part Number: MKU-4042-290

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MAIN JET LG ROUND

Part Number: MKU-N100-604150

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Carburetor Main Jet, Brass, Mikuni, 210, Set

Part Number: MKU-4042-210

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MAIN JET LG ROUND

Part Number: MKU-N100-604110

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Carburetor Main Jet, Brass, Mikuni, 270, Set

Part Number: MKU-4042-270

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Carburetor Main Jet, Brass, Mikuni, 280, Set

Part Number: MKU-4042-280

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Carburetor Jet, High Speed, Mikuni, Brass, SBN 38, SBN 44, SBN 46, #125, Set of 4

Part Number: MKU-N102-221125

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Estimated Ship Date: Feb 16, 2026 if ordered today

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MAIN JET LG ROUND

Part Number: MKU-N100-604155

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MAIN JET LG ROUND

Part Number: MKU-N1006041675

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Carburetor Main Jet, Brass, Mikuni, 340, Set

Part Number: MKU-4042-340

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Carburetor Main Jet, Brass, Mikuni, 155, Set

Part Number: MKU-4042-155

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MAIN JET LG ROUND

Part Number: MKU-N100-604180

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Carburetor Main Jet, Brass, Mikuni, 310, Set

Part Number: MKU-4042-310

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Carburetor Main Jet, Brass, Mikuni, 320, Set

Part Number: MKU-4042-320

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MAIN JET LG ROUND

Part Number: MKU-N100-604100

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Carburetor Main Jet, Brass, Mikuni, 370, Set

Part Number: MKU-4042-370

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MAIN JET LG ROUND

Part Number: MKU-N100-604140

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Carburetor Jet, High Speed, Mikuni, Brass, SBN 38, SBN 44, SBN 46, #165, Set of 4

Part Number: MKU-N102-221165

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Carburetor Jet, High Speed, Mikuni, Brass, SBN 38, SBN 44, SBN 46, #127.50, Set of 4

Part Number: MKU-N1022211275

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Carburetor Main Jet, Brass, Mikuni, 220, Set

Part Number: MKU-4042-220

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ROUND MAIN JETS 4/PK #85

Part Number: MKU-VM1122-85

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ROUND MAIN JETS 4/PK #90

Part Number: MKU-VM1122-90

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Carburetor Jet, High Speed, Mikuni, Brass, SBN 38, SBN 44, SBN 46, #135, Set of 4

Part Number: MKU-N102-221135

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Estimated Ship Date: Feb 16, 2026 if ordered today

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MAIN JET LG ROUND

Part Number: MKU-N1006041125

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today