Gold Wing



Ignition Advancer -


replaces oem #300291-MN5-000

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Ignition Advance

Simply add 4 degrees of ignition advance to your Wing.
 Perks up the low and midrange power if jetted properly and can improve mileage slightly, if jetted properly.
I say "REJETTING REQUIRED" because if your Wing is still delivering a lean fuel mixture (like a new, low mileage bike) it might ping a bit at certain throttle openings at low rpm, especially with low octane fuel . Then you need to richen up the lowend carburetion.

I can't guarantee that it won't ping a bit when hot and I can't guarantee you won't have to richen the jetting a bit - only that this rotor will advance the timing a small amount.

 Thanks - marc

(415) 883-5620

Easy install - 1 hour. 

Pro Shift Arm Kit - fewer missed shifts

Microbearing Shift Arm

pn: SHFT-ARM-H78 / MN5-CER

Hybrid ceramic microbearing detent arm


replaces Hon pn: 24430-MN5-000 arm

(415) 883-5620

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Stage 1

Low friction Pro Detent Arm Shift Kit

(w hybrid ceramic bearing)

The F-Pro 52100 steel raced, ceramic balled microbearing equipped detent arm reduces shift drum rotational friction as compared to the steel "roller" version - resulting in quicker shifts and  fewer missed "quick" or "lazy"  shifts.

Help prevent gear dog and shift fork damage caused by missed shifts.

This kit will not fix missed shifts caused by already damaged gears and shift forks.

Thx - Marc
(415) 883-5620

Special short D type, Honda / Triumph Fuel Screw Wrench 

TL-HONDA "D" WRENCH     $29.95

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SHORTY version -  shorty version required for Valkyrie

STEEL CONSTRUCTION Fuel Screw / Mixture Screw Wrench, "D" type

(as used on most modern Honda Keihin CV carbs)


True Rear Wheel Horsepower by Factory EC997 Eddy Current Dynamometer


User report - or "I did it My Way"
(sung with Frank Sinatra voice) -
Thanks for the pics and report, Steve)

Marc, It has been quite some time and weather has just started to cooperate but I have great news. I have been able to make the Valkyrie run real nice!!!
I had removed the top of the air box (some pictures included) and ported out the entire intake system. My final set up is as follows:
Pilot jet # 38 (included in the Factory Pro jet kit)
Factory Pro needle: Clip on # 3rd groove (from the top)
Main Jets have an orifice of .072" (thousandths) not sure what size jet that would be? (180, 182, 185 Keihin or  Factory Pro K series main jet, Marc)
Fuel screws @ 2.5 - 2.75 turns
It runs remarkably and pulls well from 1200 rpm in 5th gear.
The sound and acceleration is quite addictive!! It hits the rev limiter in 1st and  2nd before you know it!
It took me 13 tries to jet this setup. Please feel free to pass this combination along to anyone with confidence!
 Thank you for all your help and encouragement!
regards Steve Brown






















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