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rookie questions
#334893 05/30/2009 11:33 AM
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When using the jetting calc. 42 piolet jets are stock? Both snorkels are referring to the two in the factory airbox?

also looked in the tech vault but can't find a "how to" on jetting/shimming. Any help?

Re: rookie questions
cwildman #334894 05/30/2009 11:45 AM
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120 mains and 42 pilots are stock in our bikes.

Snorkels-I don't know about that one-I never figured that out-so good question.

This website shows how to jet and shim our carbs (amongst other things). Also has the jet calculator. It's stickied in the perfomance mod section also.

http://www.dinqua.com/


Blue/White, Battery Relocated, 155/45's, AI removed, Cocktail shakers
Re: rookie questions
08America #334895 05/30/2009 5:47 PM
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The snorkel is the rubber part coming out of the air box lid where the filter is. You can just grab it and pull it out. The other snorkels are inside the air box but only on the oldr bikes around 02 and 03.


I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!
Re: rookie questions
The_Dog33 #334896 06/03/2009 4:51 PM
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Thanks for answering those but now I have more questions. To shim or not to shim, how do I know if its needed. what is the benefit of non factory carb needles. Do I need the "D" tool for 03 Speedmaster?

Re: rookie questions
cwildman #334897 06/03/2009 8:12 PM
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Some like TBS needles, some like Thruxton needles, and some like stock. I seem to have had best results with the stock needles and I did try the YBS needles but went back to stock.

Shim if you have a mid range flat spot, seems in most cases not needed.

Not sure what they used in 03 but my guess is the screw has the D head on it, my 04 did.


I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!
Re: rookie questions
The_Dog33 #334898 06/03/2009 9:13 PM
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What is the reasoning/benefit behind the different needles?

Re: rookie questions
cwildman #334899 06/03/2009 9:20 PM
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The taper and lengths are different effecting fuel delivery.


I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!
Re: rookie questions
cwildman #334900 06/03/2009 9:26 PM
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Quote:

What is the reasoning/benefit behind the different needles?



To richen up the mid-range to eliminate the flat spot.

Re: rookie questions
cwildman #334901 06/03/2009 10:01 PM
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Quote:

Do I need the "D" tool for 03 Speedmaster?



My 03 America didn't need the "D" tool. Standard screw driver (small)


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Re: rookie questions
Gregger #334902 06/07/2009 10:47 PM
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05 speedmaster. bought the tool. drilled out the hole, and found out it was a regular flat head. d tool for sale.


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Re: rookie questions
cwildman #334903 06/08/2009 6:03 PM
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Quote:

Do I need the "D" tool for 03 Speedmaster?




My '03 did not need the D tool.


Steelheart- '03 Speedmaster Black/Yellow The Hayabusa Killa 16" Shorties/140 mains/Airbox drilled Procom CDI "There is no cure for Celibacy. But we can treat the symptoms."
Re: rookie questions
BrianT #334904 06/16/2009 10:06 PM
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New questions. I did some mods and rejetted using the calculator to find the correct size. The mods went without a hitch and was amazingly less involved than I imagined. I took a four day trip through the finger lakes in NY and was amazed at the drop in MPG. I went from a 120 main jet to 125 and the distance on one tank (reserve not included) went from about 180 to 130 miles. I was going to get the freak and would need to rejet again but will I be killing the mileage again.

Re: rookie questions
cwildman #334905 06/16/2009 10:09 PM
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I run a 155 main and 48 pilot and get between 120 and 150 miles before reserve depending how I am driving and the load on the bike. Oh and I have the pods on my bike too with open exhaust.


I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!
Re: rookie questions
The_Dog33 #334906 06/16/2009 10:11 PM
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Will the freak in any way help the mileage?

Re: rookie questions
cwildman #334907 06/16/2009 10:20 PM
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That's a big drop in mileage for a small change in jet size, were there other contributing factors (i.e. windshield, luggage..)?


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Re: rookie questions
roadworthy #334908 06/16/2009 10:28 PM
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I had some luggage but I pack light. An additional say 15 lbs in luggage is generous. all in a backpack and camelback. not saddlebags

Re: rookie questions
cwildman #334909 06/16/2009 10:40 PM
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Oh, and I did add 1 shim to the needles when working on the carbs.

Re: rookie questions
cwildman #334910 06/17/2009 7:28 AM
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In nearly 50,000 miles i have never gotten better than 160 miles to reserve, and that was only once. 130 miles is closer to my average.


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Re: rookie questions
mrt202 #334911 06/17/2009 8:56 AM
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When I was running stock I got about 45 mpg. Then when I did all my mods and took the windshield off I get 35 mpg now. You should expect some change in mileage because you're pushing more fuel in.

And here's a thread about mpg after rejetting from before.

http://www.bonnevilleamerica.com/forums/...true#Post384833


Blue/White, Battery Relocated, 155/45's, AI removed, Cocktail shakers
Re: rookie questions
cwildman #334912 06/17/2009 10:40 AM
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Quote:

the distance on one tank (reserve not included) went from about 180 to 130 miles. I was going to get the freak and would need to rejet again but will I be killing the mileage again.




Thats about right. I have pipes a freak kit and am jetted more aggressively than you are (see info in my signature below) and I can get to about 120 (sometimes more) before reserve consistently.

Keep in mind that you probably are using that throttle a bit more now than before. Before you were most likely rolling on or off, now you might be stabbing it more cause you want to play with that newfound power.


Adding the freak wont change much if anything.

BTW...I once got about 54 MPG after all my mods...that day I was keeping my speeds low and rolling on/off. I was very surprised. I have since gotten into the habbit of looking for fuel at 100 miles.


SOLD: 07 Black BA, 39mm FCRs, TPUSA stage 1 head, TPUSA 813 cams, TPUSA 10.8:1 pistons, TTP #3 igniter, Specialty Spares Long Cannons, Tsukayu Hard Bags. 82HP/55tq NEW: 19 Goldwing Tour DCT
Re: rookie questions
Zmilin #334913 06/17/2009 4:37 PM
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I've always averaged 52 mpg's. Don't know why, I've changed a lot, but the reserve switch is like clockwork. We're talkin bone stock (sewing machine) to freak kit 2 baffles removed rejetted, same mileage. I've always drove it like I stole it too.


Aaron 04 "Green Bean" Freaked, AI removal, Bafflectomy, 6" Risers, and 30" Drag Bars.
Re: rookie questions
cochran03 #334914 06/17/2009 5:20 PM
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Dang, Aaron!! Green Bean sure is good to you on the mpg's then.


Blue/White, Battery Relocated, 155/45's, AI removed, Cocktail shakers
Re: rookie questions
08America #334915 06/17/2009 10:52 PM
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It does amaze me how much different mileage everyone gets. My bike runs great and tricked out with a number of dyno runs. Most of the time I ride around town and consistently get 36-40 mpg. 40 would be mostly highway.


Bob 2005 America, 904cc - sold. 2014 Trophy SE.
Re: rookie questions
RamSound #334916 06/18/2009 11:00 AM
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I run 89 octane, and I've used a 17t, 18t, and now a 19t which I think the 19 might drop the MPG's a little.


Aaron 04 "Green Bean" Freaked, AI removal, Bafflectomy, 6" Risers, and 30" Drag Bars.
Re: rookie questions
cochran03 #334917 06/23/2009 11:57 AM
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Just wanted to mention that my 07 TBA had 120 mains, but 40 pilots. I gutted the pipes and rejetted to 132 mains and 45 pilots, which took care of any popping.

Re: rookie questions
Captain_Midnight #334918 06/23/2009 3:35 PM
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It really should be reiterated that if you gut pipes or have less restrictive pipes (reduced back pressure) it is normal to have some decel popping. Eliminating all popping means you've probably overcompensated by adding excess fuel and are running richer than you should be.


Bob 2005 America, 904cc - sold. 2014 Trophy SE.

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