Kuryakyn Hypercharger install issues ! - Star Motorcycle Forums: Star Raider, V-Max, V-Star, Road-Star Forum
 
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post #1 of 4 (permalink) Old 12-26-2015, 04:56 PM Thread Starter
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Location: Apopka Florida, a twist in the road just northwest of Orlando Florida My home for over 30 years
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Kuryakyn Hypercharger install issues !

Ok well I posted about this install recently and wanted to give you guys the scoop on this item.

Even though the finished product looks great and functions
as it should here's what we found during installation.

Some additional parts are included and not used on the vstar 650.

The rubber boot that attaches to the intake mounting bracket
was drilled in reverse of what it should have been. New holes had to be marked and cut out. for proper alignment.

The instructions were way far off on the hardware supplied and how many spacers are used and where. Very confusing.

If everything would have been correct the install would have taken no more than 1 hour to complete.
ours took over 2 hours due to the issues listed. and having to dbl check our work.
And the bike now requires it to be rejetted due to increased air flow.
(which we new would be the case)
just an FYI for those looking to buy this kit.

2000 Vstar 650 Classic , Firethorn orange Metal flake Urethane, OEM tall Windshield, 47 Harley Tail light mod, progressive springs, hard bags painted to match w/chr. bullet accents Custom Modified rear rack/backrest, Cobra Modified exhaust w/ chrome Pencil tips, Hyper charger kit,
PRV 15, Riser mounted speakers, Chrome levers,Fringe grips, studded Leather bib with pocket, Billet Oil filter relocation kit , 3.5 PMS w/ stock pilots, mains- 122.5, Custom billet t signals
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post #2 of 4 (permalink) Old 12-27-2015, 08:09 PM Thread Starter
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Ok, Got an up date for all you members following along.

So this morning I loaded the carbs with the 122.5 jets that came in the Hyper charger kit.
Pilots remain stock w/ 3.5 TO on the PMS screws.

Testing showed the bike ran much better and only a slight sputter up high in the rpm range.
We were pretty sure this was due to the fully opened butterfly on WOT.
So, As a test we tied the butterfly partially open (1/2" from fully closed) and disabled the vacuum supply.
2nd test showed a much smoother and sputter free engine all the way to above 6500 rpm.
Liking this setup I made a stop for the butterfly that allows for fully closed at idle and 1/3 open at full throttle.

Seems to be the hot ticket on our setup. Bike runs better and sounds better.

I could maybe go up another size or 2 higher on the main. But I did not have any bigger jets on hand other than the 122.5.

2000 Vstar 650 Classic , Firethorn orange Metal flake Urethane, OEM tall Windshield, 47 Harley Tail light mod, progressive springs, hard bags painted to match w/chr. bullet accents Custom Modified rear rack/backrest, Cobra Modified exhaust w/ chrome Pencil tips, Hyper charger kit,
PRV 15, Riser mounted speakers, Chrome levers,Fringe grips, studded Leather bib with pocket, Billet Oil filter relocation kit , 3.5 PMS w/ stock pilots, mains- 122.5, Custom billet t signals

Last edited by RestoRider00; 12-27-2015 at 08:11 PM.
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post #3 of 4 (permalink) Old 12-27-2015, 09:25 PM
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On most Hyperchargers, the rod connecting the butterflies is threaded for adjusting the throw range of the butterflies. You might be able to keep it hooked up with a shorter throw.

Sick Mick* 2006 V Star 1100 Custom

--- Striping, lettering and paint by Sick Mick 6* Tree - 2" extended forks 21" front wheel - HK Sideburners - Progressive rear shock Pods Sick Mick solenoid delete - Spring seat - and other stuff
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post #4 of 4 (permalink) Old 12-28-2015, 07:44 AM Thread Starter
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Trust me when I say we tried all of that. The way it is made on the inside of the vacuum pot
They run the threaded rod into the diaphram and then into a round aluminum end piece.
It's locktited on. And no flats to get a wrench or anything on it to turn it.
We gave up after fiddling for more than 2 hours on it.

Right now it is hooked up with a 1/3 throw.

2000 Vstar 650 Classic , Firethorn orange Metal flake Urethane, OEM tall Windshield, 47 Harley Tail light mod, progressive springs, hard bags painted to match w/chr. bullet accents Custom Modified rear rack/backrest, Cobra Modified exhaust w/ chrome Pencil tips, Hyper charger kit,
PRV 15, Riser mounted speakers, Chrome levers,Fringe grips, studded Leather bib with pocket, Billet Oil filter relocation kit , 3.5 PMS w/ stock pilots, mains- 122.5, Custom billet t signals
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