right next to the main jet on a 41mm FCR of unknown origin? it's about .020 diameter.
dougn1 said:
I'm assuming that it is in body of the carb and not in the bowl? The only jets in the body in the area of the mj, are the pj, and the start jet.
If it's in the bowl, it would be the leak jet.
Hope this helps.
it's right next to the main jet. i don't know if you would call that the body or the bowl.
It sounds like you have an FCR that is not equipped with a choke. In that case the jet you are talking about would be the pilot jet.
If the man said it was right next to the main jet it only leaves two options!!
pilot or choke( start) jet!! If dougn1 can give us the # on jet the mystery is gone!
DaleEO you had to be drinking when you answered this!
pilot or choke( start) jet!! If dougn1 can give us the # on jet the mystery is gone!
DaleEO you had to be drinking when you answered this!
BOSS said:
Not drinking, just being kinda sloppy and didn't proof read it!
. All taken care of now! Thanks Rick! dougn1 said:
If it's in the upper half of the carb it's the body. And if there is only ONE jet next to the main, down inside of a well then it's the pilot jet, then Kzoo is right on the mark with his assumption of your carb being an older version without the choke. Does your carb have a choke?
Hope this helps.
Dale
it's not the pilot. it's in the body. the carb has a choke. it's closer to the main jet than the pilot
dougn1 said:
Then that would be your starter or choke jet.
Were you having any problems of any kind or were you just on a fact finding mission here?
Dale
actually the thing starts well but it seems like i have to run on choke for too long. i just cleaned out the pilot jet which is .018 dia. (48) i think, and set the screw to 1.5 turns. i'm a little confused as to the purpose of the screw
dougn1 said:
Okay,
How about some basic information? What year and size bike is it. Where do you ride, temp altitude,etc....
And let's get the carb info down for ref. What are the following jet sizes marked on the side of the jets. (The numbers represent the hole diameter in hundredths of a millimeter, so a 165 on your main jet means 165 hundredths of a millimeter or 1.65mm's.)
Needle (should be a 5 letter code like OBDVT or something like that, and be sure and include the clip position. The clip position is what slot the clip is in from the top down)
Main Jet
Pilot jet
Is there a leak jet present? It will be in the bowl if there is one.
Pilot Air Jet. located under the bell in the back of the carb, and on the left as you look at it from the back
Main Air Jet. Same location as the PAJ but on the right side.
The screw that you mention that you have at 1.5 turns out is the Pilot Screw. This screw meters how much Fuel is flowing through the pilot circuit. Once the bike is warmed up, ride the bike around for 10 or 15 minutes, with the bike at nice idle 1500-1600 rpm, turn the ps in until the motor starts to slow down and then back it out one full turn, or to the point where the motor idles the highest. The general rule of thumb here is that if you are less than a turn out you need a smaller pilot jet, and if you're more than 2 1/2 turns out you need a bigger pilot jet.
The bog you mentioned definitely sounds like a lean bog. Again the general rule of thumb here is to lower the clip on the needle one position, thereby raising the needle, and this should help with the bog. But be sure you have got your pilot screw set right first. Sometimes just opening up the pilot screw will help with this bog condition if you are on the edge so to speak.
Get back to us with the requested info and I'm sure we will have you sorted in short order.
Hope this helps.
Dale
ok thanks dale.
02 470
41mm fcr
170 main
48 pilot
i don't see a pilot air jet or a main air jet. i'll also have to have a look at the needle and see if there's a leak jet
i have to do some more inspection later
i have to go cut a christmas tree this morning
02 470
41mm fcr
170 main
48 pilot
i don't see a pilot air jet or a main air jet. i'll also have to have a look at the needle and see if there's a leak jet
i have to do some more inspection later
i have to go cut a christmas tree this morning
dougn1 said:
Have fun getting your tree!
To see the PAJ and the MAJ you will have to remove the two bolts that hold the bell onto the back of the carb, and remove the bell. You'll notice on that bell that there is a horizontal slot at the bottom and that's where the air gets to those jets.
Joined Nov 2001
17K Posts | 774+
Ely, England
dougn1 said:
take it from me - you aren't lean with this jetting unless your needle is on clip 1 and your 5th letter is an R, S or a T.
my views on jetting are well recorded however i will leave it to my siblings to lead you (astray) to the chosen land....
regards
Taffy
170 main
48 pilot
1.5 turns on pilot screw
OCEMR needle on 3rd from top
there's a jet and a conical screw under the inlet bell
the jet is a 200
the screw was two turns out
48 pilot
1.5 turns on pilot screw
OCEMR needle on 3rd from top
there's a jet and a conical screw under the inlet bell
the jet is a 200
the screw was two turns out
dougn1 said:
Hi Doug,
You are to lean on the PAS, for a 48PJ you wont to be out around 1 1/4 turns, plus the 48PJ is way to rich.
Regards
Sparks.
dougn1 said:
Okay cool,
The conical screw is an adjustable pilot air screw which according to the "DOC" is open too many turns for your pilot jet size,, and with the ps set at 1.5 turns out the idle mix should be lean. The adjustable pilot air screw should be at 1 & 1/4 turns out for your 48 pilot. Reset pas screw to 1 & 1/4 turns out and then adjust ps as I mentioned before. http://www.husaberg.org/wiki/index.php/Carburation
As sparks mentions you are too rich with that 48, but, let's get your bog problem solved first and then start leaning things down.
Also from the DOC, suggested jetting for the FCR.
* 152MJ with std/ FX/FC pipe.
* EKQ needle on clip 4, a 38 PJ: which needs #60 PAJ (3/8 turn on a PAS).
* Reduce pump squirt to .028" or .75 second.
* PS 1.5 turns + or - 0.5 turn.
For right now, you can try moving the needle clip to position #5 from the top, this will put you pretty close to the same taper position as the EKQ. This should also help quite a bit with your bog situation.
Also, from the DOC, there are pictures of the MKI and MKII FCR please identify which FCR you have based on the accelerator pump mechanism the MKII looks like this http://www.husaberg.org/modules/gallery ... timing.jpg
And the MKI looks like this http://www.husaberg.org/modules/gallery ... affy11.jpg
As you can see from the suggestions from the DOC, you appear to be quite rich. However, let's take a measured approach and do it a step at a time. This will enable you to use what you have right now and check the results without having to go and purchase a bunch of brass that you may not have. And you will be able to feel the changes along the way as we work toward a better jetting set up.
So, go ahead and reset your PAS to 1 & 1/4, start with the pilot screw set @ 1.5 turns out. And lower the clip on your needle to position number #5. Start the bike and warm it up, and set ps as I mentioned before. Then check and see how your bog situation is and let us know.
Do you have any Kehin jets?
Dale
Joined Jun 2007
4K Posts | 1K+
south east WA Australia
mains below 160 .........a 200 MAJ is a wee bit too large just MHO but its in the DOC too somewhere
Taffy where are you? at the bar? theres no one here but the voice in my heads! strange place this chosen land, the directions are all chinese whispers and treasure maps
Taffy where are you? at the bar? theres no one here but the voice in my heads! strange place this chosen land, the directions are all chinese whispers and treasure maps
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