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Honda CB1100F CB750K CB650 performance main jet kit
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60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
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Honda CB1100F CB750K CB650 performance main jet kit

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1971 / 1981-83 Honda CB1100F / CB750K / CB650 Performance Main Jet Kit

48-2114
$44.95 USD
In stock Usually ships the same or next business day
Check model fitment View fitment
Questions about this part? Contact us 4.8/5 1,329 store reviews
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60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
Browse all parts
1971 / 1981-83 Honda CB1100F / CB750K / CB650 Performance Main Jet Kit
$44.95 USD
Description

Tune your 1971 CB750K, CB1100F, or CB650 with this 1971 Performance Main Jet Kit. Includes a total of 16 main jets for Keihin carbs. Use this jet kit to unleash the extra power you should have from your aftermarket exhaust, free-flowing air filters, or any engine mods you have made. Includes main jets #120 (x4), #122 (x4), #125 (x4), and #128 (x4).

Key Features
• 1971 performance main jet kit, 16 jets
• Sizes: #120, #122, #125, #128 (4 of each)
• For Keihin carbs

Fitment / Compatibility

• Honda CB750K (1971) with Keihin carbs

• Honda CB1100F (1983) Supersport with Keihin carbs

• Honda CB650 (1981‑82) with Keihin carbs
• CB650C (1981) Custom with Keihin carbs

Part Number: 48-2114

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Check the listed model and year, then read any fitment notes in the description.

Make Model Year
Honda CB750K 1971
Honda CB1100F Supersport 1983
Honda CB650 1981
Honda CB650 1982
Honda CB650C Custom 1981

Free ground shipping over $50

To the USA & Canada. In-stock orders usually ship from our own warehouse the same or next business day.

Estimated ground delivery after your order ships
DestinationDelivery time
USA4–7 business days
Canada2–6 business days

Ground shipping includes tracking, emailed when your order ships. Need it sooner? Express options are available at checkout.

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60-day returns on eligible parts

No restocking fees. Eligible parts must be unused, uninstalled, unaltered and complete. The 60-day window starts when your order is delivered.

Electrical parts are excluded from standard returns. Check return eligibility.

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Other shipping options

Canada Post Economy: Available at checkout for select small items. Allow 1–3 weeks for delivery. No tracking or insurance is included.

Outside the USA & Canada: Delivery times vary by destination and shipping method. Buyers are responsible for applicable duties, taxes and import fees. We cannot mark orders as gifts.

Frequently Asked Questions

How many main jets are included in the performance jet kit?

Sixteen Keihin-type main jets are included in four sizes: #120, #122, #125 and #128, with four jets of each size.

Are all 16 main jets installed at the same time?

No. A four-carburetor rack uses one matched size across all four carburetors, so four jets are installed and the other three size sets are retained for tuning.

Which carburetors fit this main-jet kit?

It is intended for the 1971 CB750K, 1981-1982 CB650, 1981 CB650C and 1983 CB1100F with Keihin carburetors. Confirm Keihin carburetors and the existing jet style before installation.

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