Hard Krome Exhaust and Rejet - Star Motorcycle Forums: Star Raider, V-Max, V-Star, Road-Star Forum
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post #1 of 11 (permalink) Old 02-08-2011, 03:48 PM Thread Starter
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Hard Krome Exhaust and Rejet

Hey Folks,

I just got a set of Hard Krome 3" Res Tech pipes (black) for my 03 Vstar 650. My question revolves around what else needs to be done. Based on the Hard Krome website, it is advised to rejet with the Dynojet kit which is no problem. What I am unsure of is the air intake. Do I need some kind of intake kit? Just a better flow K&N type filter? A mod of the current intake?

Any guidance would be appreciated. I have done some work on bikes but I haven't dealt with exhaust, rejets, or intakes before.

Marc.
2003 VStar 650 Classic
www.2wheels2freedom.com
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post #2 of 11 (permalink) Old 02-08-2011, 04:31 PM
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Check out the Performance section here.

http://www.650ccnd.com/

and try to stay away from Dynojet kits they are about $100, stick with Mikuni jets for your mikuni carbs they are about $5 each and you need 2.

GW
2005 1100 Custom
Speedster Slashdowns
ORKed 5/16" Lines
PODs K&N RU-600s W/PCV
PCS XXX/2 cams
Jetted & PMS Tweaked 20.0/152.5 3.0 turns
AIS Removed/Plugged
Wimmer Machine Custom Oil Cooler & Stash Tube
Pro-1 Tach
Dyna 3000 Step 5/ 6500 redline
TPS Connected
6" Fwd Control Extension W/Boards F&R
Memphis Shades Bullet Fairing
Progressive 465 rear
Progressive Springs and GVE front

10,000 Monkeys throwing crap at the glass and this one thinks he's Picasso...

Last edited by Fulltilt1; 02-08-2011 at 04:44 PM.
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post #3 of 11 (permalink) Old 02-08-2011, 10:57 PM Thread Starter
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Quote:
Originally Posted by Fulltilt1 View Post
Check out the Performance section here.

http://www.650ccnd.com/

and try to stay away from Dynojet kits they are about $100, stick with Mikuni jets for your mikuni carbs they are about $5 each and you need 2.
Thanks. So rather than drop $80+ on a Dynojet kit, all I really need is the appropriate size $5 Mikuni main jets depending on the type of air mod. Leave the stock pilot and a couple of shims with the stock needle?

Marc.
2003 VStar 650 Classic
www.2wheels2freedom.com
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post #4 of 11 (permalink) Old 02-08-2011, 11:29 PM
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Yep pretty much. If you have a caliper you can substitute #4 stainless washers for the shims. You just have to upsize the hole to .125 (1/8") and match the thickness between washers. you'll prob need 125.0 mains (2). you can also eliminate the third filter and go the pcv route. like I did.

http://s770.photobucket.com/albums/x...ltilt1/V-Star/

the lines attach to the existing crankcase vent. Much cleaner than oil vapor coating your engine and the assoc. dirt/dust sticking to it.

GW
2005 1100 Custom
Speedster Slashdowns
ORKed 5/16" Lines
PODs K&N RU-600s W/PCV
PCS XXX/2 cams
Jetted & PMS Tweaked 20.0/152.5 3.0 turns
AIS Removed/Plugged
Wimmer Machine Custom Oil Cooler & Stash Tube
Pro-1 Tach
Dyna 3000 Step 5/ 6500 redline
TPS Connected
6" Fwd Control Extension W/Boards F&R
Memphis Shades Bullet Fairing
Progressive 465 rear
Progressive Springs and GVE front

10,000 Monkeys throwing crap at the glass and this one thinks he's Picasso...

Last edited by Fulltilt1; 02-08-2011 at 11:33 PM.
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post #5 of 11 (permalink) Old 02-09-2011, 12:18 AM
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The initial owner of my 03 1100 custom had Hard Krome Ds and a jet kit installed. The thing runs like a scaped ape and sounds really good. Not deafening but fun in tunnels and tight overpasses. : )

2003 1100 Custom
Hard Krome Ds
Drag bars, Stage 3 & intake.
Bugs in my teeth
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post #6 of 11 (permalink) Old 02-09-2011, 08:38 AM
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Marc, I'd go with the GAK, You'll see a tad more power with the Hyper-Charger but it's way more expensive.. Also I'd replace the screws from the Float bowls, they are soft and prone to stripping. You can get internal hex head stainless ones at Ace Hardware (they have a better selection than the big box stores, great for chrome hardware also). Also you'll need to sync the carbs. Bench sync them first to get them close (the throttle plates even). Then idle sync them when finished. All these things are easy once you've done them. Just read carefully and ask questions if needed.

DIY Sync Tool:

http://www.sloneservices.com/SilverB...5.htm#DIY-Mano

GW
2005 1100 Custom
Speedster Slashdowns
ORKed 5/16" Lines
PODs K&N RU-600s W/PCV
PCS XXX/2 cams
Jetted & PMS Tweaked 20.0/152.5 3.0 turns
AIS Removed/Plugged
Wimmer Machine Custom Oil Cooler & Stash Tube
Pro-1 Tach
Dyna 3000 Step 5/ 6500 redline
TPS Connected
6" Fwd Control Extension W/Boards F&R
Memphis Shades Bullet Fairing
Progressive 465 rear
Progressive Springs and GVE front

10,000 Monkeys throwing crap at the glass and this one thinks he's Picasso...

Last edited by Fulltilt1; 02-09-2011 at 08:58 AM.
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post #7 of 11 (permalink) Old 02-09-2011, 09:43 AM Thread Starter
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Quote:
Originally Posted by Fulltilt1 View Post
I'd go with the GAK, You'll see a tad more power with the Hyper-Charger but it's way more expensive.. Also I'd replace the screws from the Float bowls, they are soft and prone to stripping. You can get internal hex head stainless ones at Ace Hardware (they have a better selection than the big box stores, great for chrome hardware also).
That was going to be my next question to see if anyone had preferences. From what I read, the GAK seems to be pretty straight forward with the most bang for the buck. HC and BAK are pretty pricey and the RAK seems like a lot of cutting for less performance.

No ACE Hardware up here in Canada, but I am sure I will be able to find it online somewhere as well. Or I will just have to make a visit down to WA.

Marc.
2003 VStar 650 Classic
www.2wheels2freedom.com
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post #8 of 11 (permalink) Old 02-10-2011, 01:27 AM
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from everything i've found about the hypercharger, consensus is that it's all show and no go. no one really reports any gains from it. it just looks nice.
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post #9 of 11 (permalink) Old 02-10-2011, 01:35 AM Thread Starter
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from everything i've found about the hypercharger, consensus is that it's all show and no go. no one really reports any gains from it. it just looks nice.
That has been my impression as well. I am leaning, strongly, towards the GAK mod.

Marc.
2003 VStar 650 Classic
www.2wheels2freedom.com
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post #10 of 11 (permalink) Old 02-12-2011, 02:03 AM Thread Starter
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Ok, I have received the pipes (they're pretty), I have the pod filters and crankcase breather for the GAK, waiting on the main jets in the mail. Now looking for the float bowl screws/bolts as I understand its inevitable that they will be butchered if not requiring extraction by force. Anyone know the sizes required? Best I can figure out is I need some 4mm, pitch 0.7 in 10mm and 12mm. Can anyone confirm?

Marc.
2003 VStar 650 Classic
www.2wheels2freedom.com
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