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RACING >> MACHINES >> FZR400 >> 600 Parts

What parts are interchangeable with the FZR400 and the FZR600?

Since there seems to be an abundance of FZR600 laying around, it helps to know what parts can be scavenged to preserve our FZR400's. This list is from http://www.commline.com/FZR/FZRArchives/ and may or may not be accurate.

The following parts will interchange:

  • rear wheels (if you use the caliper hanger that goes with the wheel)
  • front wheels (as long as the rotors/calipers go with their matching forks)
  • complete front ends (triple clamps are the same)
  • motors (with the change of a few things - see 600 motor swap)
  • handle bars and levers
  • gas tanks (the 600 has a slightly higher filler neck, but fits every where else)
  • switch gear and throttle (cables differ at carb)
  • foot pegs and levers
  • clutch cables
  • swing arms
  • rear shock and all linkages
  • carbs (may need jetting change)
  • front brake calipers (only applies to '88-89 400's and pre 4-piston 600's)
  • rear brake calipers (all)
  • front and rear axles
  • rear gas tank brackets
  • regulator (Sloan's says the part number is 1 digit off, but this has been tested in racing circles)
  • 600 radiator to 400 frame (with a simple change in hose routing)
  • 600 water pump to 400 frame (if you use the entire assembly, you need to use the 600 lower rad hose, otherwise, just use the 600 pump with the 400 cover)
  • radiator fans
  • radiator caps, (Quoted from an anonymous source - If the price of a new Yamaha rad cap makes you choke, go to your local auto parts store and buy one for an '89 Honda Accord. It's the same.)
  • thermostats
  • gas caps (Note, the filler neck on the 600 tank is taller)
  • ignition switches
  • sprocket covers
  • starter clutch covers
  • starter relays
  • cam chain tensioner
  • fuel pumps (The 600 has a larger OD on the outlet, but still works, a ZX7 pump is also a direct plug in, ask Tony Pagliaroli)
  • turn signals
Note: Starter motors and magneto/rotors are not interchangeable. However, more than a few of us have thought about swapping the entire assembly from a 600 to a 400!

As far as swapping parts between models, the '88 and '89 models are identical. The only differences to the '90 model is paint, 4-piston calipers (same as early FZR1000's and FZR750's), rotors with a different offset (but same diameter), and the all-aluminum Deltabox swing arm. Also note that there seems to be no readily available 88-89 400 cranks from the manufacturer. Instead, you need to buy a 90 crank, and it comes with slightly different oil seals to match the 88-89 cases.

In memory of Speedshop  LP Privateer  LP Racing  Aftershocks  Pirelli

February 28, 2008