Hey, 48s Pilots Question
10-09-2012 | 03:54 PM
#1
Thread Starter
Senior Member
Superstock
Joined: Oct 2011
Posts: 273
From: Pompano Beach, Fl.
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?
10-10-2012 | 06:42 PM
#3
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SuperBike
Joined: Aug 2005
Posts: 1,858
From: Fort Wayne, IN
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!
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!
10-12-2012 | 11:12 AM
#4
Thread Starter
Senior Member
Superstock
Joined: Oct 2011
Posts: 273
From: Pompano Beach, Fl.
48's
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!!!! 
10-15-2012 | 12:07 PM
#5
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Senior Member
Superstock
Joined: Oct 2011
Posts: 273
From: Pompano Beach, Fl.
Torque
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.
10-15-2012 | 12:13 PM
#6
Thread Starter
Senior Member
Superstock
Joined: Oct 2011
Posts: 273
From: Pompano Beach, Fl.
48s
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?
10-15-2012 | 12:43 PM
#7
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Back Marker
Joined: May 2011
Posts: 160
From: Farnorcal
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.
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.
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