Honda VFR400     87-93

"NC-24 and NC-30"
(for RVF400, NC-35 - click here)


Carburetor Recal Kit

CRB-H18-1.0     $159.95

1. Choose your shipping method


Easy to install and tune - no slide drilling!
Adds more low-end / midrange, if the proper main jet is selected, more top-end power.
This is one of the kits that we made our reputation on.

Improve your shifting with a Factory Pro "Pro Shift Kit"

The Full Evo Shift STAR Kit

NC30, 90-93 (does not fit NC24)

(for nc24, email

SHFT-EVO-HON-42   $239.95
EVO Shift STAR, microbearing Detent arm, HD spring, gasket
1. Choose your shipping method

Premium EVO Shift STAR Kit

The EVO Shift STAR kit will upgrade your bike to the latest, greatest shift action.

Virtually eliminate missed shifts - Shifts quicker - especially 2nd gear. A "tap" on the shifter and it's in the next gear.

Who else but Factory Pro would continue to support the classics? Making them as good as the new bikes and making the new bikes, even better!

Banish the last bit of clunk from the gearshift mechanism,

Make shifting MUCH quicker and virtually eliminate missed shifts. Helps address missed shifts caused by poor shift detent "star" profile.

User's comments


(sample pic only)

microbearing Detent arm, HD spring

1. Choose your shipping method


Economy Pro Shift Kit

Make shifting MUCH quicker and virtually eliminates missed shifts. Helps address missed shifts caused by poor shift detent "star" profile.
Includes slightly heavier detent spring and and new Factory Pro Microbearing Detent arm assembly.

User's comments


model years oem detent spring oem detent arm detent star spring kit arm and spring STAR, arm and spring
89-93 24435-MR7-000
same as 90 vfr750

same as 90 vfr750
oem 24312-KT7-751
superseded to:
oem 24312-KT7-752
same as 90 vfr750
same as 90 vfr750
same as 90 vfr750

same as 90 vfr750


no longer available from Honda

same as VTR250 and VFR500

We could modify your arm with bearing

Stopper Comp, Drum photo


no longer available form Honda

none none none




Absolutely NO carb parts sold in California.

New and improved
Suzuki Teka SFI 2
with new TPS display and "MMT" Memory Module Tuner feature

Finally - Quick, easy, cost effective Suzuki tuning with no expensive "add-on boxes"
Suzuki cruisers and sportbikes

Please click here for more info

Contact Factory Pro
M-F, 9am - 5pm, Pacific time, -7 or -8 GMT

800 869-0497
 USA and Canada

415 883-5620

no fax

Factory Pro
101c Roblar Drive
Novato, CA

If it's
4pm at Factory Pro it's 9am in eastern Australia.

parts information

EC997 dynamometer information

Product Support /Tech SECTION
click here

And most importantly
Restart back at the HOME page and click on the red box in the top left to find the bike that you want parts for...

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