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Old 11-08-2011, 09:23 AM   #56536
PHILinFRANCE
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Old 11-08-2011, 09:45 AM   #56537
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Quote:
Originally Posted by TRAVELGUY View Post
Please don't "wish" for FI. The Internet is already to full of people trying to find different mapping for their FI bikes to make them run right.
FI is great. The existing maps may not be perfect, but unlike a carbureted bike, with FI at least the possibility exists to make the mixture correct at every intersection of throttle position and rpm. Because of the high resolution, it's potentially a lot of work, but you don't have to worry about overlap between circuits, gasoline spills or multiple disasemblies/reassemblies.

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Old 11-08-2011, 09:47 AM   #56538
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Quote:
Originally Posted by kbuckey View Post
I've had problems with mine as well. At first I thought it was the sending unit/speed sensor, but not that. Bought a new Vapor. Still didn't work. Changed the freaking magnet and, viola! However, now when it gets cold (like on the ride in this morning 28 F at home and 33 down here in Denver) it doesn't work. Bet dollars to donuts it works fine going home....
When mine acts up, the temperature has been varied quite a bit. The last one quit entirely back in May of this year. I replaced it just before my Death Valley ride. And now that one has started acting up, but hasn't quit yet.

Trailtech wants me to send the Vapor and sensor to them to test... 'course that leaves me without a speedo or odometer, rendering the bike unrideable (since I need the odometer to track fuel usage). My GPS would provide speed. So I dunno what to do. If I can find where to get one of those cheap sensors to put at the wheel, I'll get one and do my own testing first.

Oh and as for the EXT9 battery, I contacted the vendor and they want me to do some tests on it, then take it to an auto parts store for a load test, and then if all that fails, return it and they said they'd replace it. So we'll see.

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Old 11-08-2011, 10:10 AM   #56539
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Quote:
Originally Posted by Sourjon View Post
...Was considering buying this bike but I think I'll get it running and scurry it right back to where I got it....
meh, dont worry about it John. i bought mine in May with 3500mi and it's at 11000mi today, haven't had a problem with the pilot jet, and yeah i did clean it many miles ago.

Quote:
Originally Posted by FloridaSteve View Post
...You guys should spend some time in the vintage 2 stroke universe.....
aint that the truth! probably 25% of this thread is this same old nonsense.
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Old 11-08-2011, 10:15 AM   #56540
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Quote:
Originally Posted by LexTalionis View Post
However, I'm unsure just where this pilot jet resides, and how to get it out. ronayers.com shows a pilot jet in the fiche, but not where it fits into the carb. I looked at "The BST-40 Bible" and there's no mention of a pilot jet; there is mention of an idle jet.
Have a look at http://www.advrider.com/forums/searc...rchid=10680148. If you search for the term "pilot jet" within the results using your browser's "find" function, you will notice that the term actually appears in the BST40 bible thread a number of times.
Quote:
To get out in front of an answer, I'm guessing the idle jet in the Bible is what we call the pilot jet, and the float needs to be removed to access it from the interior underside of the carb body. Correct?
Yes. The float cage will need to be removed. Looking at the underside of the carb, the pilot jet can then be found in a well downstream and to the left of the main jet.
Quote:
And so, what does the F/A screw, screw into if not a jet? Just a conical area in the carb body? A conical brass fitting in the carb body?
The idle mixture screw, aka pilot screw (which is in this case a fuel screw) screws into a well on the downstream underside of the carb body. The tip protrudes into a tapered bore, which exits in the throat of the carb just downstream of the edge of the butterfly. As delivered, the fuel screw well has a metal plug installed in order to prevent "tampering" (at least in the US).

Regards,

Derek
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Old 11-08-2011, 10:18 AM   #56541
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Quote:
Originally Posted by Sourjon View Post
N151.067 are the correct ones.

Regards,

Derek
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Old 11-08-2011, 10:22 AM   #56542
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Talking

http://www.lucasoil.com/products/dis...catid=2&iid=26

A little dose of this stuff on a regular basis does wonders for carbies and today's wonder fuels Or witches brews is more like it.

The DR has gotten ridden regular since I got it in July, no issues with the carbie, the BSA's with dual Amal carbies have gotten a dose of the Lucas fuel conditioner for years with no pilot jet issues after sitting.

And if you think DR's have woes with pilot jets, anything with an Amal is far touchier..... Unless you treat your fuel
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Old 11-08-2011, 10:48 AM   #56543
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Like motolab says N151.067 is correct but this illustrates a potential problem getting a replacement pilot jet. Many shops will have the more common VM22/210 jets, Some may even have the BS30/96 but very few will have any N151.067 jets in stock. Many parts counter guys won't know or notice the difference. The wrong jet will fit right in and you'll spend hours & days chasing your tail trying to sort out a running problem.

Quote:
Originally Posted by Sourjon View Post
Anybody got the Sudco jet number or type?






John
Funny how the diagrams show them with left hand threads. Jets do not have left hand threads!
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Old 11-08-2011, 01:50 PM   #56544
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Quote:
Originally Posted by Rich B View Post
http://www.lucasoil.com/products/dis...catid=2&iid=26

A little dose of this stuff on a regular basis does wonders for carbies and today's wonder fuels Or witches brews is more like it.

The DR has gotten ridden regular since I got it in July, no issues with the carbie, the BSA's with dual Amal carbies have gotten a dose of the Lucas fuel conditioner for years with no pilot jet issues after sitting.

And if you think DR's have woes with pilot jets, anything with an Amal is far touchier..... Unless you treat your fuel
That's a funky looking bottle. Or is it 2 products? Tune Up In a Bottle and fuel injector cleaner? If so which one are you using?
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Old 11-08-2011, 02:56 PM   #56545
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Pissed OK, I have no memory...

I have been searching for hours over the past few days (really!) to find a post that listed stock fork sizes for common (dirt?) bikes.
I don't remember what thread, or even what forum I read it in....
I thought it was in here though.

Does anyone recall seeing it?
AND, do you remember where you saw it?

It was a LONG post listing dozens, if not hundreds, of bikes by fork diameters.
I don't remember if it listed other dimensions, all I recall was diameters.
I have tried searching using every term I could think of and I am getting nowhere in any thread or forum.
Seems to me it was in a discussion of fork swapping...
Since this thread is one of my daily reads I have tried here as well as Thumpertalk and other DR650 sites.

One of those things that we read and think "that is really interesting and useful" and then forget to save it somewhere for when we want it.

Or maybe I am the only one who forgets everything...

Uh, never mind. Dumbhead finally thought to search on Google and instantly hit multiple sites with the chart....
Thank you for your time, now we may get back to the regular discussion of pilot jets: "to clean or not to clean, that is the question..."
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Old 11-08-2011, 02:58 PM   #56546
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$20 jet kit results

today i had some time off to finish playing with my jetting. i'm currently at 800' elevation, and pretty much sea level for my daily ride. i've been running a KTM needle (4th clip from the top) and DJ160 main jet, cut airbox and stock muffler with header grind. i've been really happy with the mid range pull and top end on the freeway is great.

today i installed the last piece of the puzzle which is the 45 pilot jet, 1.5 turns out on idle mixture. i tried it with the needle at the middle clip position first, fearing it might be too rich, then moved it back to the 4th clip position.

all i can say is WOW, this thing pulls like a bat out of hell! lugs down low great, starts right up on choke (enrichment...) and sounds nice & thumpy. probably surprising to some who say my bike shouldn't even run. lol.

overall, i'd say WIN. we'll see how the mileage returns on the next couple tanks.

KTM needle $10
Mikuni 45 pilot $5
Mikuni 150/155 main $5
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vintagespeed screwed with this post 11-08-2011 at 03:08 PM Reason: oops
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Old 11-08-2011, 03:05 PM   #56547
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Quote:
Originally Posted by JagLite View Post
I have been searching for hours over the past few days (really!) to find a post that listed stock fork sizes for common (dirt?) bikes. ...
here's one, there are several:

http://www.scribd.com/doc/3565549/Mo...ork-tube-sizes
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Old 11-08-2011, 03:12 PM   #56548
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Quote:
Originally Posted by vintagespeed View Post
today i had some time off to finish playing with my jetting. i'm currently at 800' elevation, and pretty much sea level for my daily ride. i've been running a KTM needle (4th clip from the top) and DJ160 main jet, cut airbox and stock muffler with header grind. i've been really happy with the mid range pull and top end on the freeway is great.

today i installed the last piece of the puzzle which is the 45 pilot jet, 1.5 turns out on idle mixture. i tried it with the needle at the middle clip position first, fearing it might be too rich, then moved it back to the 4th clip position.

all i can say is WOW, this thing pulls like a bat out of hell! lugs down low great, starts right up on choke (enrichment...) and sounds nice & thumpy. probably surprising to some who say my bike shouldn't even run. lol.

overall, i'd say WIN. we'll see how the mileage returns on the next couple tanks.

KTM needle $10
Mikuni 45 pilot $5
Mikuni 150/155 main $5
what store did you buy from? thanks.
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Old 11-08-2011, 04:07 PM   #56549
procycle
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Quote:
Originally Posted by vintagespeed View Post
today i installed the last piece of the puzzle which is the 45 pilot jet, 1.5 turns out on idle mixture.
Once again, your carburetor setup is outside the norm. Most riders who have tried the 45 pilot have reported a 'rich bog' just off idle that couldn't be tuned out without going back the the stock 42.5 pilot jet. Most bikes will even exhibit the off idle bog just turning the mixture screw much beyond 1.5 turns.
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Old 11-08-2011, 04:15 PM   #56550
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Originally Posted by Rumlover View Post
Would I replace one? Sure if I have one handy. But lets get real, cleaning one is not rocket science.
There you go being all reasonable! Probably get you banned I've got an opportunity to pick this bike up at a sweet price and wanted to be sure there weren't any well known problems like the 08 KLR oil burning problem. I can deal with some bad gas and a stuffed jet.

John
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