Technical Discussion Topics related to Technical Issues

Hey, 48s Pilots Question

Old 10-09-2012, 02:54 PM
  #1  
Senior Member
Superstock
Thread Starter
 
zxbud's Avatar
 
Join Date: Oct 2011
Location: Pompano Beach, Fl.
Posts: 273
zxbud is on a distinguished road
Hey, 48s Pilots Question

To those of you who switched from stock 45s pilots to 48 or 48s pilots what if any improvement did you notice and how is your Hawk set up? As an aside this machine came with stock jetting and slide needles but also with Dynojet slide springs and .030 shims. I just replaced those springs with stock Honda springs which are quite a bit stiffer at all slide openings and don't notice any difference in running or performance. It runs perfect but it did that before. What are your thoughts?
zxbud is offline  
Old 10-09-2012, 04:24 PM
  #2  
Moderator
MotoGP
 
Wolverine's Avatar
 
Join Date: Jul 2007
Location: Gettysburg, Pa
Posts: 4,490
Wolverine is on a distinguished road
Originally Posted by zxbud View Post
It runs perfect but it did that before. What are your thoughts?
My thoughts? If it's running perfect, don't F with it!
Wolverine is offline  
Old 10-10-2012, 05:42 PM
  #3  
Senior Member
SuperBike
 
JamieDaugherty's Avatar
 
Join Date: Aug 2005
Location: Fort Wayne, IN
Posts: 1,836
JamieDaugherty is an unknown quantity at this point
Originally Posted by VTRsurfer View Post
+1

And since your mains aren't stock, you may end up too rich.
Another +1

I've never tuned a VTR with anything other than #45 pilots. Every #48 I've seen has been way rich. Those are my experiences, some around here have claimed the 48's work. I would suggest you focus on something is a problem and work on a solution for that. Trying to correct an already perfectly running (as you describe) bike will almost certainly result in problems!
JamieDaugherty is offline  
Old 10-12-2012, 10:12 AM
  #4  
Senior Member
Superstock
Thread Starter
 
zxbud's Avatar
 
Join Date: Oct 2011
Location: Pompano Beach, Fl.
Posts: 273
zxbud is on a distinguished road
48's

Originally Posted by JamieDaugherty View Post
Another +1

Every #48 I've seen has been way rich. Those are my experiences
Thanks a bunch as this is the affirmation I am looking for. When opening throttles from a closed state to slightly open in 2,3,4 etc at low rpm it can seem to stumble. It may be do to poor intake velocity and I noticed the same thing with the Suzuki sv1000 I once had. They have bigger intakes and valves which accounts for a little more power, but they're not as much fun. And they have the secondary throttle plates which must mitigate some of that stumble. The vtx1800 I ride doesn't do it at all but it has smaller intake tracts and cams. What a thrilling ride and style like none other!!!!
zxbud is offline  
Old 10-15-2012, 11:07 AM
  #5  
Senior Member
Superstock
Thread Starter
 
zxbud's Avatar
 
Join Date: Oct 2011
Location: Pompano Beach, Fl.
Posts: 273
zxbud is on a distinguished road
Torque

Originally Posted by VTRsurfer View Post
Just a question... Why a long stack on the front carb? It seems like that would disrupt the air flow to the rear carb and cause the air flow to have to bend more to enter the front carb.
Because I wanted more low end partial throttle torque than top end as I seldom go higher than 7k, anyway. Two things I like about this Hawk---the looks and the sound and the v-twin sound goes away after 7k rpm.
zxbud is offline  
Old 10-15-2012, 11:13 AM
  #6  
Senior Member
Superstock
Thread Starter
 
zxbud's Avatar
 
Join Date: Oct 2011
Location: Pompano Beach, Fl.
Posts: 273
zxbud is on a distinguished road
48s

Originally Posted by VTRsurfer View Post
That's exactly what disappeared after I installed the 48 pilots.

They're only about 6 bucks and change each. You could always throw a couple in there and see what happens.

This bike seems to 'come on the cam' at about 3700 rpm and I wonder if that's due to the stock lean 45s pilots, too. It's as if the cam timing changes like in a vtec engine. There is a noticeable hit of power at that rpm at any throttle opening. What do you think or notice?
zxbud is offline  
Old 10-15-2012, 11:43 AM
  #7  
Senior Member
Back Marker
 
Join Date: May 2011
Location: Farnorcal
Posts: 160
jeephawk is on a distinguished road
I have 48 installed in mine. Basically stock but with Jardine cans.
Adjusted the TPS, pair removal and got rid of the California smog stuff.
After adjusting the mixture screw a couple times im running about the best I can get it which is perfect for me. Id like to dyno it sometime and see, but from the plugs its running pretty good. No carb farts or anything like that.
Starts instantly with a slight pull of choke and doesnt run hot.
Idles fine and has no hesitation at any rpm. Pulls the same to redline.

By the way I havent gotten around to syncing it yet either since last mixture adjustments so itll smooth out a little more too.

Luvin the hawk right now.
jeephawk is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
skokievtr
Everything Else
6
03-12-2010 03:48 PM
SlowHAWK
Modifications - Performance
7
04-10-2007 06:35 PM
rooster
Members Rides
8
03-13-2007 10:47 AM
BMiller
General Discussion
24
03-10-2007 07:57 PM
MisterMohawk
General Discussion
2
02-24-2007 08:14 AM


Thread Tools
Search this Thread
Quick Reply: Hey, 48s Pilots Question


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.

All times are GMT -7. The time now is 07:12 AM.


© 2019 MH Sub I, LLC dba Internet Brands