I've ordered 110ci stage3 bolt on kit(92500035) today.
In the instruction sheet, it is recommended seperate purchasing of
cam spacer(25928-06) and cam drive retension kit(25566-06), so I ordered both of them also.
But there are two of retension kit(bolt and nut) in the drawing in instruction sheet,
do I need two set of them? or just one set is enough?


This is the DWG from HD online,
http://www.harley-davidson.com/app-c...ts/-J06176.PDF
In fifth page, there are two of retension kit(indacated as 'B')

 

PN 25928-06 includes five spacers; you may not need any but worst case you will need one. PN 25566-06 includes both the pinion and rear cam bolt and washer, so, you only need the one set. Actually, you don't really need those as the OEM fasteners can be re-used.

 

Thank you! djl
I don't need to order the retension kit again~GOOD!!!

 

The kits includes heavy duty clutch spring also,
and it may be for 380lbs-ft and stock one is for 340lbs-ft,
so It will makes the clutch lever more harder.
Is there no problem if I use stock spring after I install the kits?

 

Get it tuned you might need that clutch spring,if its slipping and it should be with what you got going or did you buy the pooch kit

 

Install the heavy duty clutch spring now. It can be purchased separately for about $30; IIRC, the PN is 37951-98. It will make the clutch lever pull harder but that can be offset by installing one of the "easy pull" ball/ramp kits. You could dry the OEM spring and it might hold on the dyno but if not, you will have to stop the tune and install the spring to finish the tune.

 

Thank you jurgie! Thank you djl!
The kit includes heavy duty spring and I'll install it.


And.... the pistons and cyiliders (cyl. heads are stock)
will be changed by new one,
so do I need to treat the bike as new one such as the manual of the bike recommends ? In the manual, HD recommends do not rev up over 3,000rpm
until 50mile riding, not rev up over 3,500rpm until 500mile riding, and change the oils after first 1,000mile and so on for new bike.


My roadking's accumulate mileage is about 11,000mile and I'm changing the
engine oil every 2,500 miles and all the oils for engine, primary and trasmission every 5,000miles.
And I will change the whole the oils at same time installing the stage kits next weekend, do I need to change the engine oil earlier than I usually did
after stage upgrade?

 

Finally, the 110ci stage3 bolt on kit has been installed.
The new cylinders have really thin spigots and the forged pistons are
quite difference from stock ones and much more lighter.
The results is very good,
bigger volume and 585 cams boost up the low end torque very much
but not too much to make hard to control the bike.
And I didn't change the clutch spring because the heavier spring
will make the already hard clutch lever more harder
but the clutch doesn't slip yet, and if do someday I'll change it or install VPC.

 

Was it tuned yet.

 

Yes, I live in south korea so it tooks so much days that the kits being delivered from U.S.