Carb rejetting

 

Just how important is it, really, to rejet the carbs when installing
slipons?

I have spoken to several people with VSTARS (mine's a 650) who've
installed pipes and not rejetted.  The only thing they report is some
backfiring...which I already have on my 2002 with stock pipes.

I'm thinking about trying it along with K & N's new (to me at least)
high flow replacement filter element.....about 50 Bucks vice the $150
it costs to replace the whole assy.

The dealer tells me (and why do I grab hold of my wallet whenever he
speaks???) that the bike would not idle and be hard to start.........

cheers

bob

 

You should be able to adjust the mixture screw to take care of the
idle/starting issues.

 

I have a 2004 v-star and replaced the exhaust with BUB exhaust.  They
were the only exhaust modifications that do not require rejetting per
tech support they offer the same back pressure as the original system.
As far as the backfiring I had the same problem,Try temporarily
disabling the AIS system There's a quick guide at the bottom of the page
it only takes 5 min to disable it

 http://www.star-riders.org/starcruiser/volume4-1/ais_1100.html

 



Sigwings wrote:

Such was my thinking.  I freely agree that rejetting might add even
more power,  but....required????????  I suspect that a LOT of what's
"required" is only required as a jobs program for dealer mechanics.
grin

cheers

bob

 

The only way to know is to put on the exhaust system, drive it and see if
you have any problems and check the plug trouble.  You probable won't have
to re-jet for exhaust only changes, but if you free up the intake as well...