Injector Database › Recently Serviced › Keihin 16450-MCZ-003
Keihin 16450-MCZ-003 fuel injectorKeihin 16450-MCZ-003 fuel injector photo 2Keihin 16450-MCZ-003 fuel injector photo 3Keihin 16450-MCZ-003 fuel injector photo 4Keihin 16450-MCZ-003 fuel injector photo 5
1 / 5
Keihin 16450-MCZ-003 · Serviced & Flow-Tested

Honda CB900F 919 / Hornet 900 Fuel Injector Cleaning & Flow Testing

The Keihin 16450-MCZ-003 is a MPFI motorcycle port injection fuel injector used in Honda CB900F 919 / Hornet 900 inline-4 (2002-2007). We ultrasonic-clean and flow-test injectors like this one in our shop, then send back before-and-after data so you know exactly what you're getting.

ManufacturerKeihin
Part number16450-MCZ-003
TypeMPFI motorcycle port injection

Our measured results

These are the actual before-and-after numbers from our flow bench for the Keihin 16450-MCZ-003 — not published estimates.

Tested in our shop4 injector(s) @ 40.0 psi
Measured coil (avg)11.88 Ω
10s open flow (avg)36.75 → 37.25 ml (+1.4%)
60s pulsed flow (avg)46.75 → 45.75 ml
Leak test after cleaning4/4 PASS

What vehicles use the Keihin 16450-MCZ-003?

Honda CB900F 919 / Hornet 900 inline-4 (2002-2007)

How we service it

Every injector gets ultrasonic cleaning, backflushing, before-and-after flow testing (static and dynamic), leak testing, spray-pattern inspection, and new O-rings and micro-filter baskets where available — plus a detailed Injector Performance Report. Round-trip USPS shipping is $15 flat.

Frequently asked questions

What vehicles use the Keihin 16450-MCZ-003 injector?
The Keihin 16450-MCZ-003 is used in Honda CB900F 919 / Hornet 900 inline-4 (2002-2007).
Can you clean and test a 16450-MCZ-003 injector?
Yes. We ultrasonic-clean, backflush, and flow-test the Keihin 16450-MCZ-003 on our bench, including before-and-after open and pulsed flow, leak testing, and spray-pattern inspection, with new O-rings where available.
What did the 16450-MCZ-003 flow at?
On our bench, 4 16450-MCZ-003 injectors averaged 36.75 ml open flow before cleaning and 37.25 ml after, tested at 40.0 psi.
How much does it cost?
Standard MPFI top-feed injectors are $30 each; side-feed, GDI, TBI and specialty injectors are $35 each. Round-trip shipping is $15 flat, 4-injector minimum.
How do I send them in?
Start an order on our Get Started page, ship your injectors to our Weymouth, MA shop, and we return them cleaned, tested, and documented.

Related injectors we've serviced

Keihin 16450-RBB-003

Send in your 16450-MCZ-003 injectors

Mail-in cleaning and flow testing with a full before/after report. 4-injector minimum, $15 flat round-trip shipping.

Get Started