Well BCB the new jetting is working wonders.Went on a 150 mile ride yesterday with the Wife.Did Valley of Fire by Lake Mead,then west side of Leak Mead to the
freeway into town.Speeds averaged 45 to 65 mile per hour and my milage went thru the roof.About 52 miles per gallon.The other day went to Parump up the mountain
and over and then back really stong winds.Averaged about 37.
Current settings,DY195 main,DJ needle 3rd groove,PMS at 2.I think I`m a little lean on the Idle circuit as I have to warm up abit and even with the choke full on don`t see any black smoke when I roll the throttle,so plan on trying 2 1/2.
I think that will give me the milage I`m looking for at 70 and 75 miles an hour.

To all my thoughts on this.The bigger main give you more room to work on the PMS
cicuit.If your to lean at Idle you`ll have to to use more throttle at speed,thus
poorer gas milage.BCB is using aDJ200 main and a 3 PMs and getting 42 MPG. I love the performace of the bigger main when you DO want to get it on.Which I had lost
with the DJ175main
So......Could we be starving our RoadStars <br><br>Post edited by: vegasdave, at: 2006/10/29 10:29

I think there's more than one way to get there from here. I have the 170 Mik and I'm getting 44. BCB is running the 200 DJ and getting 42. (2 mpg difference means nothing cuz that can change completely around on the next run.) My warm up time even now with temps in the low 30s F in the morning is short. As for performance, I think that's pretty subjective. Mine has more now that it did stock and it has all I want. But what pleases me might make you think I'm nuts. (No comment required ) The important thing is to be happy with your bike. And I enjoy the hell out of reading about what people are doing and how it's working for them. I'm learning all the time and I'll switch in a heart beat if it sounds like something I'd like. I hope it never comes down to carved in stone answers. Then the clinic would just be a teaxt book to read and who likes reading text books

I always thought you were lean with a DJ 170. I usually recommend about a DJ 180.

Don't forget the main is important at 3/4 to WOT whereas the needle is important from 1/4 to 3/4. Most of us spend all our time on the needle. I note that you're on the 3rd clip so I suspect that's why you're getting the good mileage, especially at 45-65 mph.

The faster you go and the more time you spend with the throttle at the 3/4 mark the worse your mileage will become. You'll see this at higher speeds or having to climb hills often.

The needle does, however, bleed over onto the idle circuit so that's why you may be a little lean at idle.

In the end, carb recommendations are just that .... recommendations. Each person should tune their bike to their situation.

If you're happy, I'm happy.

Doc

Vegas Dave, I set up my carb upon reading your jet set-up a couple of months back, and have been pretty satisfied, NOW you have found a better set-up? Seriously, Did you adjust simply for MPG's? What pilot jet (idle) are you running? Curious. Anyway, happy sailing!
Now, here's what I've got going on with my bike as a recent phenomenon and all you guys are welcome to pour on opinions. First,jetting : main DJ175,needle 4th grove with stock spacers in stock locations,stock pilot jet, PMS 3 turns from closed. Now then...., since then I've drilled 10 1/2 inch holes in the stock box to pull more air, and added a Barons stock ported manifold. The bike has alot more get-up , but sometimes feels like it is fouling out the plugs , like your wringing out the thottle, but it is giving you nothing in return!Falling on its face! Recently pulled the plugs, fronts were ok (brown/little dark,) backs were sooty except directly in the firing area. Typical of the Harley twins. It would be nice to correct this little offense as it is very iritating.(btw) This actually started doing this before I added the intake shortly after drilling the hole in the airbox. Any thoughts??

Big Bear,

Are you saying when you crank the throttle it bogs? What's the WOT test tell you?

Doc

Big Bear wrote:
Vegas Dave, I set up my carb upon reading your jet set-up a couple of months back, and have been pretty satisfied, NOW you have found a better set-up? Seriously, Did you adjust simply for MPG's? What pilot jet (idle) are you running? Curious. Anyway, happy sailing!
Now, here's what I've got going on with my bike as a recent phenomenon and all you guys are welcome to pour on opinions. First,jetting : main DJ175,needle 4th grove with stock spacers in stock locations,stock pilot jet, PMS 3 turns from closed. Now then...., since then I've drilled 10 1/2 inch holes in the stock box to pull more air, and added a Barons stock ported manifold. The bike has alot more get-up , but sometimes feels like it is fouling out the plugs , like your wringing out the thottle, but it is giving you nothing in return!Falling on its face! Recently pulled the plugs, fronts were ok (brown/little dark,) backs were sooty except directly in the firing area. Typical of the Harley twins. It would be nice to correct this little offense as it is very iritating.(btw) This actually started doing this before I added the intake shortly after drilling the hole in the airbox. Any thoughts??

Tinkerville took me there.Also I saw a post that BlackCherryBomb had post.
I had it wrong in the first quote He`s running a 210 DJmain,here`s my settings:

DJ195main,DJneedle at 3rd groove,Stock 35 pilot,PMS at 2 1/2
I`ve never had some of the problem`s guys have had besides back fire on
deceleration when rejetting my carb.Also I`m running a Tear Drop Thunder MFG.
air cleaner and RoadHouse Dooley`s,which are mor open than stock but still
have nice back Pressure.The needle at the 3rd groove is what I think makes the bigger main work,I went up what...4 jets,plus I think it gives you
more room to adjust at the PMS.I think DynoJet may have it right except for that
37.5 pilot they want you to use......Unless your Drag Racing

Post edited by: vegasdave, at: 2006/10/30 07:29<br><br>Post edited by: vegasdave, at: 2006/10/30 07:31

Thanks guys. Here's something odd. Yesterday I went to meet my wife after work to go to dinner out near where she works (30 mins interstate riding). I was kinda laying on her to &quot;clean her out&quot; , looked down and was doing a buck ten on the interstate. Mine has never been able to go more than about 90-95. And this was with a big windshield and saddle bags. I was pleasantly surprised as I was not expecting it to do that, and it had throttle left. The night before, (first ride since adding the manifold), it was pretty cold (about 38) so I choked it alittle long (couple mins.) as I got dressed for the weather. Took it out and imediately(?) after turning the choke off (while moving), thats when it really fell on its nose.Backfired, bucked, the whole shooting match. Maybe it was loaded up? Anyway, to answer your Doc ,I haven't done a WOT test (yet). But, it seems to be running better since then. Oh, yeah , I also added a 4 ounce shot of seafoam in the tank to clean the valves a few days before all of this. Could the bogging be caused by carbon build -up? I only have a couple thousand miles on her so far. Here's another thing, mine always seems to smell rich when idling, is there something I can adjust or replace (pilot stock) to lean out the idle curcuit? That's where were at guys, so............... Thanks, Dan.

Big Bear wrote:
Thanks guys. Here's something odd. Yesterday I went to meet my wife after work to go to dinner out near where she works (30 mins interstate riding). I was kinda laying on her to &quot;clean her out&quot; , looked down and was doing a buck ten on the interstate. Mine has never been able to go more than about 90-95. And this was with a big windshield and saddle bags. I was pleasantly surprised as I was not expecting it to do that, and it had throttle left. The night before, (first ride since adding the manifold), it was pretty cold (about 38) so I choked it alittle long (couple mins.) as I got dressed for the weather. Took it out and imediately(?) after turning the choke off (while moving), thats when it really fell on its nose.Backfired, bucked, the whole shooting match. Maybe it was loaded up? Anyway, to answer your Doc ,I haven't done a WOT test (yet). But, it seems to be running better since then. Oh, yeah , I also added a 4 ounce shot of seafoam in the tank to clean the valves a few days before all of this. Could the bogging be caused by carbon build -up? I only have a couple thousand miles on her so far. Here's another thing, mine always seems to smell rich when idling, is there something I can adjust or replace (pilot stock) to lean out the idle curcuit? That's where were at guys, so............... Thanks, Dan. Post edited by: Big Bear, at: 2006/10/31 06:45

That`s the thing with my new jetting Bear,With the DJ195,and needle on 3rd
clip,gives you more room to work with on the PMS screw.But be advised I`ve
never had some of the problems I`ve read of here when other people have made their adjustments,popping , backfiring , hesitation just felt the performace
get better or suffer.So your call on wether to go to Tinkerville or not

Gonna bring this thread back to life for a minute. I am experiencing something silmilar to what Bear was going through. I warm up the bike, it idles fine. I take off and get upto around 45 then the exhaust sounds weird, just more distinct between strokes I guess, and weak power. If I let go of the throttle and pull in the clutch she dies. If I pull in the clutch and rev it a few times real good to keep it running she backfires like hell and then is back to idling ok until I drive it another 1/2 mile or so, then it does it all again. This happens for 10 or 15 miles then it runs fine all day long. I just ran a can of seafome through the tank, then changed the oil (Royal Purple 20sw50) and put Iridium plugs in. Any thoughts?

DJ 175 main
4th on the neddle
stock pilot jet 3 turns out
Mr. Cancilla BAK
V&H Longshots

What pilot jet are you running? BB